{"title":"Monoblock Amplifiers","description":"\u003cp\u003eA monoblock amplifier is a power amplifier built to drive a single channel, so a stereo system uses a matched pair, one per speaker. Isolating each channel in its own chassis and power supply eliminates crosstalk between left and right, doubles the available power supply per channel, and lets each amplifier sit close to its speaker for shorter cable runs. The result is greater channel separation, tighter bass control, and effortless dynamics on demanding loudspeakers, which is why monoblocks sit at the top of most amplifier ranges. For the hardest-to-drive speakers, a pair of monoblocks is the reference approach to power.\u003c\/p\u003e\u003cp\u003eThis collection spans monoblocks from Audia Flight, Grimm Audio, Kora, Primare, Rogue Audio, THÖRESS, and Unison Research, in tube, solid-state, and hybrid designs. Rogue's \u003ca href=\"\/products\/rogue-audio-m-180-monoblocks-per-pair\"\u003eM-180\u003c\/a\u003e and \u003ca href=\"\/products\/rogue-audio-m250-ultra-monoblock-amplifier\"\u003eM-250 Ultra\u003c\/a\u003e deliver 180 and 250 watts of tube power, while Kora and Primare bring high-current class-A and class-D muscle. For stereo-chassis options browse all \u003ca href=\"\/collections\/power-amplifiers\"\u003epower amplifiers\u003c\/a\u003e, or see \u003ca href=\"\/collections\/tube-power-amplifiers\"\u003etube power amplifiers\u003c\/a\u003e for valve output stages.\u003c\/p\u003e","products":[{"product_id":"audia-flight-strumento-no-8-mono-power-amplifier","title":"Audia Flight Strumento no.8 Mono Power Amplifier","description":"\u003cp class=\"p1\"\u003eThe Strumento N°8 Mono Power Amplifier represents the pinnacle of Audia Flight’s vision: absolute control, limitless headroom, and a level of refinement that places it firmly among the world’s true reference amplifiers. Building on the legacy of the celebrated Strumento N°4 stereo amplifier, the No. 8 takes everything learned during that project and applies it with mono-block focus: one channel per chassis, no compromises.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEvery decision in the Strumento N°8 reflects Audia Flight’s obsession with musicality, speed, and mechanical silence. From the fully balanced, Class A input stage to the 3000VA encapsulated output transformer, the N°8 doesn’t just drive speakers. It liberates them. Paired in mono configuration, these amplifiers offer the kind of effortless dynamics and tonal precision that can only come from separating channels entirely, each with its own dedicated power foundation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAssembled and finished by hand in Italy, the N°8 is a visual and sonic statement. Its chassis begins life as a bespoke aluminum casting and is finished through a combination of CNC machining, mirror polishing, and anodization. Inside, you’ll find craftsmanship that borders on artistry, from the pure copper output bars to the epoxy-encased gain stage, thermally stabilized and shielded from interference. This is the result of engineering backed by human ears refined with the same care a luthier gives a concert instrument.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFor those chasing perfection, this is the amplifier that removes every bottleneck between your source and your soul.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eWhat's Different About the Strumento no.8 Signature Edition?\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eFor listeners seeking the most advanced expression of the Strumento platform, the \u003cstrong\u003eStrumento N°8 Signature\u003c\/strong\u003e edition represents a meticulous evolution. Audia Flight engineers asked a bold question: how do you improve a design already considered perfect by many? Their answer: refine everything.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe Signature version features upgraded internal components, tighter tolerances, and parts selection based on hundreds of hours of listening tests. Changes include upgraded capacitors, precision-matched resistors, and refinements to the power supply architecture, all optimized by ear to extract even greater nuance and control from the already world-class circuit.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eExternally, the Signature edition is marked by an engraved gold plaque and premium finish detailing. It delivers higher output power than the standard model, while retaining the same graceful dynamics and speed that define the Strumento sound. Offered as a variant, the Signature edition shares the same handcrafted chassis and layout but pushes every element further. If the original Strumento N°8 is a masterwork, the Signature is its encore: more intense, more expressive, and even more musically transparent.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eMono-block architecture\u003c\/strong\u003e with fully independent power and signal paths\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eExclusive Class A\u003c\/strong\u003e \u003cstrong\u003egain stage\u003c\/strong\u003e using proprietary current feedback topology\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eOver 2000W\u003c\/strong\u003e into 2 ohms with full control and speed across the entire range (Signature outputs up to 2300W)\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eDual super high-current power supplies\u003c\/strong\u003e per chassis with massive storage capacity\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003e3000VA encapsulated output transformer\u003c\/strong\u003e for clean, distortion-free delivery\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eNo output-stage fuses:\u003c\/strong\u003e protection is handled by microprocessor-controlled sensors\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eChassis milled from high-grade aluminum\u003c\/strong\u003e, mirror polished and anodized\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eFully balanced circuitry\u003c\/strong\u003e with high-purity internal copper conductors\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eTransformer and power supplies\u003c\/strong\u003e isolated from signal chassis to eliminate vibration transfer\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\n\u003cstrong\u003eDesigned, machined, and assembled in Italy\u003c\/strong\u003e with full quality control and burn-in process\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 class=\"p3\"\u003eCircuitry and Mechanical Excellence\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eWithin the graceful silhouette of the Strumento N°8 lies an incredibly sophisticated power delivery system. At the core is a completely discrete Class A gain stage enclosed within a shielded aluminum box, then encapsulated in epoxy resin. This creates complete thermal stabilization while also blocking electrical interference, preserving the purity of the signal from the moment it enters the amplifier.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe output section is powered by a 3000VA custom-wound toroidal transformer. Rather than mounting it directly to the chassis, it’s isolated in its own compartment, filled with epoxy resin, and shielded with twin ferromagnetic barriers. This separation is more than aesthetic, it’s mechanical and sonic insurance. Vibrations, magnetic fields, and mechanical noise are blocked before they can reach the sensitive circuitry.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/strumentono8internals.webp?v=1744390777\" alt=\"Audia Flight Strumento no.8 Mono Power Amplifier Internal wiring and capacitor close up\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp class=\"p1\"\u003eThe power supply is an exercise in excess, but done with precision. Each mono chassis features two high-current supplies and four fully stabilized stages: two for the input, two for the feedback loop. Capacitor storage is massive, featuring 28 hand-selected 6,800μF \/ 63V low-impedance capacitors, for a total main storage exceeding 190,000μF. Even the filtering stage is custom built using ultra-fast rectifiers. Every element in this chain is selected for one goal: complete authority over current, with zero compromise in speed, transparency, or tonal accuracy.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAudia Flight also made a critical philosophical choice: removing fuses from the output path. In their place, a microprocessor-controlled current sensor monitors and protects the amplifier without introducing resistance or limiting dynamic energy. It’s the kind of decision only possible in a no-holds-barred design, and it shows.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eA Case for Beauty\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eThe enclosure itself isn’t just beautiful, it’s purposeful. Built from ultra-high-grade aluminum, each chassis begins life as a cast, then undergoes extensive CNC machining, followed by hours of hand polishing and finishing. The surface is shot-peened for textural depth and anodized for durability. Final silk-screening is applied by hand.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis level of finish isn’t simply about aesthetics. Mechanical rigidity, resonance control, and shielding are all improved by this process. The result is a structure that disappears from your listening experience, leaving only sound.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eNote: Choosing Black is a made to order product that has longer wait times.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p3\"\u003eThe Strumento series is available through only a select number of authorized dealers in the United States. The Listening Room is proud to be among them.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThe Listening Room is a third-generation, family-owned hi-fi store built on expertise, honesty, and long-term relationships. We’re a real brick-and-mortar shop located in Chestertown, Maryland. Not a warehouse. Not a dropshipper. When you call, you’re speaking with someone who knows the gear inside and out.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eOwner Mike Hoatson is involved in every part of the process. When a pair of Strumento No.8 mono amplifiers is sold, he doesn’t leave delivery to chance. Mike handles it personally. That includes white-glove delivery, full setup, and in-room testing to make sure the system is performing at its best.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eWe don’t just ship audio equipment. We show up, we install it, and we make sure it’s right.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eTechnical Specifications\u003c\/h5\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border-bottom: 2px solid #ccc; padding: 8px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border-bottom: 2px solid #ccc; padding: 8px;\"\u003eStandard\u003c\/th\u003e\n\u003cth style=\"border-bottom: 2px solid #ccc; padding: 8px;\"\u003eSignature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eOutput Power (per channel)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e500W @ 8Ω\u003cbr\u003e1000W @ 4Ω\u003cbr\u003e2000W @ 2Ω\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e650W @ 8Ω\u003cbr\u003e1300W @ 4Ω\u003cbr\u003e2300W @ 2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eGain\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e29 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e1.41V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eFrequency Response (1W RMS, –3dB)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e0.3 Hz to 1 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eSlew Rate (at 8Ω)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e\u0026gt; 200 V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eTotal Harmonic Distortion (THD)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e\u0026lt; 0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e\u0026gt; 110 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e7.5 kΩ (Balanced and Unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eDamping Factor (at 8Ω)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e\u0026gt; 1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePower Requirements\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e100V, 110–115V (50–60Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePower Consumption (Standby)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e\u0026lt; 1W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePower Consumption (Idle)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e330W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePower Consumption (Full Output @ 8Ω)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e1100W\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e1200W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e450 x 280 x 500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eWeight (Net)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e95 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e103.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eShipping Dimensions (W x H x D)\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003e580 x 410 x 700 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e125 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e124 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eFinish Options\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003eSilver or Black (Special order) anodized aluminum \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px;\"\u003eMade in Italy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Audia Flight","offers":[{"title":"Silver \/ Strumento n°8","offer_id":41772785303648,"sku":"AFSNO8MPASI","price":39999.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Strumento n°8 Signature","offer_id":42025243869280,"sku":"AFSNO8MPASIGSI","price":49999.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Strumento n°8","offer_id":42025251700832,"sku":"AFSNO8MPABL","price":39999.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Strumento n°8 Signature","offer_id":42025251733600,"sku":"AFSNO8MPASIGBL","price":49999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/AudiaFlightStrumentono.8MonoPowerAmplifierDiagonalView.jpg?v=1744390413"},{"product_id":"audia-flight-fls-8-monoblock-amplifier","title":"Audia Flight FLS 8 Monoblock Amplifier","description":"\u003cp class=\"p1\"\u003eThe Audia Flight FLS8 Monoblock Amplifier delivers serious power, speed, and musical control. Inspired by the acclaimed Strumento Series, the FLS8 was developed with the same obsessive attention to signal integrity and craftsmanship. It produces up to 1500 watts into 2 ohms and offers the kind of current delivery and stability needed to bring even the most demanding loudspeakers to life.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eBuilt entirely in Italy, the FLS8 reflects Audia Flight’s belief that the finest electronics require both engineering precision and human listening. Every circuit choice, every material selection, and every layout decision was made not only for measurement but for sound. From the Class A current-feedback gain stage to the twelve individual power supplies inside, the FLS8 is designed to disappear into the system and reveal the full emotional impact of your music.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIt is fast, dynamic, uncolored, and completely unflappable.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eFully discrete monoblock amplifier\u003c\/strong\u003e with 400W into 8 ohms, 800W into 4 ohms, and up to 1500W into 2 ohms\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eClass A current-feedback gain stage\u003c\/strong\u003e for tonal accuracy and dynamic stability\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eDual high-current power rails\u003c\/strong\u003e per channel with ultra-low impedance capacitor banks\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003e32 high-quality output devices\u003c\/strong\u003e for current delivery\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003e2000VA toroidal transformer\u003c\/strong\u003e sealed in epoxy and shielded with dual ferromagnetic enclosures\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eTwelve separate power supply sections\u003c\/strong\u003e with four stabilized regulators per channel\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eNo fuses in the output stage\u003c\/strong\u003e, replaced by microprocessor-controlled current sensing\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eEpoxy-encased gain stage\u003c\/strong\u003e isolated in its own aluminum housing\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eCustom aluminum chassis\u003c\/strong\u003e, CNC machined, mirror polished, shot peened, and anodized\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cstrong\u003eHandcrafted in Italy\u003c\/strong\u003e using hand-selected components and in-house assembly\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 class=\"p3\"\u003eRefined Strength, Designed for Real Speakers\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eFrom the outset, the FLS8 was built to drive real-world loudspeakers without hesitation. Its power supply begins with a 2000VA toroidal transformer that is enclosed in epoxy resin and isolated with ferromagnetic shielding. This transformer feeds a massive reservoir of 128,000μF across low-impedance capacitors, enabling clean and immediate power delivery across the frequency spectrum.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eRather than relying on traditional fuses, which can introduce resistance and affect dynamics, the FLS8 uses a microprocessor-controlled current sensor that protects the output stage while preserving sonic transparency. The result is an amplifier that reacts quickly, remains linear under load, and handles large musical swings without strain or coloration.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eClass A Honesty and System Synergy\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eThe gain stage operates entirely in Class A using a current-feedback topology. It is housed in a precision-machined aluminum enclosure and encapsulated in epoxy to maintain thermal consistency and shield it from vibration and electrical interference. The design provides wide bandwidth, fast transient response, and a level of low-level resolution that allows fine textures and timing to emerge naturally.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEach channel includes two ultra high-current power supplies and four independent stabilized power stages. Altogether, there are twelve separate power supplies within each amplifier. Ground paths are routed via ultra-pure copper bus bars and all signal boards use high-grade surface copper for minimal resistance and maximum stability.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFrom the first note, the FLS8 delivers sound with authority and poise. Bass is tight and controlled. Midrange textures bloom without haze. High frequencies extend without harshness. It is the kind of amplifier that invites longer listening sessions and never calls attention to itself.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eThe Listening Room is a third-generation, family-owned hi-fi shop located in Chestertown, Maryland. We run a real showroom with real inventory and a long-standing commitment to helping people build systems that truly sing. Our mission has always been to go beyond the gear and create long-term relationships built on trust, knowledge, and care.\u003c\/p\u003e\n\u003ch5 class=\"p3\"\u003eSpecifications\u003cb\u003e\u003c\/b\u003e\n\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power (RMS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400W @ 8 ohms, 800W @ 4 ohms, 1500W @ 2 ohms (measured without current limitation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e29 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.65V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response (–3 dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 Hz to 600 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSlew Rate (8 ohms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGreater than 160 V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Harmonic Distortion (THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLess than 0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal-to-Noise Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 kOhms (Balanced and Unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamping Factor (8 ohms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGreater than 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Mains Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100, 110–115 (50–60Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandby Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLess than 1W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e450 x 180 x 440 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Dimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e575 x 310 x 545 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilver or Black anodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Italy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Audia Flight","offers":[{"title":"Silver","offer_id":41772915720288,"sku":"AFFLS8SI","price":11999.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":41772915753056,"sku":"AFFLS8BL","price":11999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/AudiaFlightFLS8MonoblockAmplifierFrontview.jpg?v=1763120298"},{"product_id":"rogue-audio-dragon-monoblock-amplifiers-pair","title":"Rogue Audio DragoN Monoblock Amplifiers; Pair","description":"\u003cp\u003eThe \u003cstrong\u003eRogue Audio DragoN Monoblock Amplifiers\u003c\/strong\u003e deliver 325 watts per channel into 8 ohms and 525 watts into 4 ohms from dedicated mono chassis, using Rogue's proprietary tubeD circuit to integrate a matched pair of 12AU7 tubes with Hypex N-Core Class D output modules. Sold as a pair, each monoblock carries its own three independent linear power supplies, eliminating the interchannel crosstalk inherent in stereo designs and providing the kind of channel separation and dynamic headroom that only dedicated mono amplification can achieve.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the DragoN Monoblock Amplifiers\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e325 Watts into 8 Ohms, 525 Watts into 4 Ohms Per Monoblock:\u003c\/strong\u003e Each chassis delivers its full rated power independently, with no power sharing between channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary tubeD Circuit Topology:\u003c\/strong\u003e Rogue's hybrid design integrates 12AU7 tubes as active gain stages, not superficial buffers, shaping the amplifier's harmonic character before the N-Core output stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Balanced XLR and Single-Ended RCA Inputs:\u003c\/strong\u003e Each monoblock accepts both balanced and single-ended connections for maximum system flexibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Independent Linear Power Supplies Per Monoblock:\u003c\/strong\u003e Six total transformers across the pair (three per chassis) provide completely isolated power to the tube stage and output module in each unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Biasing Required:\u003c\/strong\u003e The 12AU7 tubes run in a self-biasing circuit, requiring zero maintenance beyond occasional tube replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Mono Chassis:\u003c\/strong\u003e At 12.5\" wide and 33 lbs each, the monoblocks can be placed directly beside or behind each speaker, keeping speaker cable runs short\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Output stage protection plus slow-start sequencing for safe, reliable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandcrafted in the USA:\u003c\/strong\u003e Designed and built in Brodheadsville, Pennsylvania, with every unit tested, burned in, and auditioned\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eWhy Monoblocks\u003c\/h5\u003e\n\u003cp\u003eThe fundamental advantage of monoblock amplification is isolation. In a stereo amplifier, both channels draw from shared power supply resources, which means a dynamic peak in one channel can momentarily starve the other. When bass drums hit in the left channel, the right channel's string sustain can compress slightly. In a monoblock design, each channel has its own dedicated power supplies, its own transformer reserves, and its own current delivery path. The DragoN Monoblocks take this further by housing three separate linear supplies in each chassis: one for the tube input stage, one for the N-Core output module's power rail, and one for auxiliary circuits. With six total power supplies across the pair, there is zero shared infrastructure between channels.\u003c\/p\u003e\n\n\u003ch5\u003eThe tubeD Hybrid Architecture\u003c\/h5\u003e\n\u003cp\u003eThe DragoN Monoblocks use the same proprietary tubeD circuit found in the \u003ca href=\"\/products\/rogue-audio-dragon-power-amplifier\"\u003eDragoN stereo amplifier\u003c\/a\u003e, with each monoblock containing a matched pair of 12AU7 tubes integrated into the gain structure ahead of the Hypex N-Core output module. The tubes handle voltage amplification and impose their harmonic character on the signal, while the N-Core module delivers the current and damping factor needed to control loudspeaker drivers with precision. Unlike simple tube buffer designs, the tubeD topology makes the tube section a functional part of the amplifier's gain chain, meaning the sonic contribution of the tubes is substantive rather than cosmetic.\u003c\/p\u003e\n\n\u003ch5\u003eDragoN Stereo vs. DragoN Monoblock\u003c\/h5\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/rogue-audio-dragon-power-amplifier\"\u003eDragoN stereo amplifier\u003c\/a\u003e delivers 300W\/8 ohms and 500W\/4 ohms from a single chassis with three power supplies shared across both channels. The DragoN Monoblocks deliver 325W\/8 ohms and 525W\/4 ohms per monoblock with three dedicated supplies each, providing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher power per channel:\u003c\/strong\u003e 325W vs 300W into 8 ohms (525W vs 500W into 4 ohms)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete channel isolation:\u003c\/strong\u003e Zero shared power supply resources between left and right\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible placement:\u003c\/strong\u003e Monoblocks can sit near speakers, minimizing speaker cable length while allowing longer balanced XLR runs from preamp to amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent grounding:\u003c\/strong\u003e Each chassis has its own ground reference, eliminating ground-loop potential between channels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eBalanced Connectivity\u003c\/h5\u003e\n\u003cp\u003eEach DragoN Monoblock accepts both balanced (XLR) and single-ended (RCA) inputs. The balanced connection is particularly valuable in a monoblock setup, where the amplifiers may be placed far from the preamplifier. Balanced cables reject common-mode noise over long runs, making 20-foot or even 30-foot XLR cables practical without signal degradation. Pair with Rogue's \u003ca href=\"\/products\/rogue-audio-rp-7-v2-preamplifier\"\u003eRP-7 v2\u003c\/a\u003e or \u003ca href=\"\/products\/rogue-audio-rp-9-v2-preamplifier\"\u003eRP-9 v2\u003c\/a\u003e preamplifiers for a fully balanced signal path from source to speaker.\u003c\/p\u003e\n\n\u003ch5\u003eSpeaker Compatibility\u003c\/h5\u003e\n\u003cp\u003eWith 325 watts into 8 ohms and 525 watts into 4 ohms, each DragoN Monoblock provides more current than most speakers will ever demand. This headroom means the amplifier operates well within its linear range at normal listening levels, staying far from clipping even during the most demanding dynamic passages. Planar magnetic speakers, electrostatic hybrids, power-hungry floorstanders, and speakers with complex impedance curves all benefit from the DragoN's combination of high power, high damping factor, and dedicated mono power delivery.\u003c\/p\u003e\n\n\u003ch5\u003eOptional 12V Trigger\u003c\/h5\u003e\n\u003cp\u003eThe DragoN Monoblocks can be ordered with factory-installed 12V triggers for $419 per pair. With the trigger modification and trigger cables in place, power is controlled exclusively through the trigger input, letting both monoblocks switch in unison with the rest of your system from a preamp, processor, or controller. This is a build-time option specified at order, not a field upgrade.\u003c\/p\u003e\n\u003ch5\u003eExplore the Full Rogue Audio Power Amplifier Lineup\u003c\/h5\u003e\n\u003cp\u003eThe DragoN Monoblocks are the flagship expression of Rogue's hybrid tubeD platform:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rogue-audio-dragon-power-amplifier\"\u003eDragoN Power Amplifier\u003c\/a\u003e\u003c\/strong\u003e - Same tubeD circuit in a stereo chassis at $3,995. 300W\/8 ohms. The entry point to the DragoN platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rogue-audio-m-180-monoblocks-per-pair\"\u003eM-180 Monoblocks\u003c\/a\u003e\u003c\/strong\u003e - 180W pure tube monoblocks for those who want an all-tube signal path with triode\/ultralinear switching and Stereophile Class A status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rogue-audio-stereo-100-amplifier\"\u003eStereo 100\u003c\/a\u003e\u003c\/strong\u003e - 100W pure tube stereo with Mundorf EVO Oil caps. A different flavor: all-tube warmth with reference-grade components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. We've carried Rogue Audio for years because their products deliver real value and hold up over time. Every component is designed and built in Pennsylvania, and we're proud to support a manufacturer that shares our commitment to quality. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction.\u003c\/p\u003e\n\n\u003ch5\u003eDragoN Monoblock Specifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePerformance (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325W into 8 ohms \/ 525W into 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmplifier Topology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHybrid: tube input (tubeD) + Hypex N-Core Class D output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20kHz ±1dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.1% typical, \u0026lt;1.0% at rated power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.75V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30K ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Complement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x 12AU7 per monoblock (self-biasing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eConnections (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrue balanced XLR + single-ended RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeaker Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty gold-plated binding posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePower (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supplies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThree independent linear supplies with toroidal transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\/240V - 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e12V Trigger\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptional factory-installed, $419\/pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCircuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShort circuit protection, standby mode, slow-start sequencing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHypex N-Core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCircuit Board\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy (2 oz) copper with precision components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFaceplate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/2\" machined and engraved aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePhysical (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.5\" W x 19\" D x 5.5\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33 lbs each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 years (6 months on tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDesigned and handcrafted in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Rogue Audio","offers":[{"title":"Silver","offer_id":41822108024928,"sku":"RADRMSI","price":5995.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":41822108057696,"sku":"RADRMBL","price":5995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/DragoNMonoblockamplifersperpair.jpg?v=1746037218"},{"product_id":"rogue-audio-m-180-monoblocks-per-pair","title":"Rogue Audio M-180 Monoblocks","description":"\u003cp\u003eFour KT120 tubes per chassis, 180 watts in ultralinear, and circuit topology pulled straight from Rogue's discontinued Apollo flagships. The \u003cstrong\u003eRogue Audio M-180 Monoblocks\u003c\/strong\u003e earned Stereophile Class A Recommended Component status for good reason: switchable triode\/ultralinear operation, balanced XLR and RCA inputs, ultra-wide bandwidth output transformers, and a dedicated high-capacity power supply per monoblock. Handcrafted in Brodheadsville, Pennsylvania, these are the most capable pure tube amplifiers Rogue makes.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the M-180 Monoblocks\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e180 Watts Per Channel:\u003c\/strong\u003e Four KT120 output tubes per monoblock deliver 180W in ultralinear mode, with switchable triode operation for tonal flexibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApollo-Derived Circuit Topology:\u003c\/strong\u003e The M-180's gain stage and output stage are derived directly from Rogue's discontinued flagship Apollo amplifiers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced XLR and Single-Ended RCA Inputs:\u003c\/strong\u003e True balanced connectivity with heavy-duty gold-plated XLR and RCA connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Wide Bandwidth Output Transformers:\u003c\/strong\u003e Custom-wound transformers with 5Hz to 50kHz (±1dB) frequency response, mechanically isolated from the chassis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriode\/Ultralinear Switching:\u003c\/strong\u003e External switch toggles between 180W ultralinear mode and lower-power triode mode without powering down\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Bias Meter:\u003c\/strong\u003e Integral bias meter per monoblock for quick, accurate tube biasing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm and 8-Ohm Output Taps:\u003c\/strong\u003e Selectable impedance matching for optimal power transfer to any loudspeaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereophile Class A Recommended Component:\u003c\/strong\u003e Recognized among the finest amplifiers regardless of price\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandcrafted in the USA:\u003c\/strong\u003e Designed and built in Brodheadsville, Pennsylvania, with every unit tested, burned in, and auditioned\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eApollo-Derived Tube Architecture\u003c\/h5\u003e\n\u003cp\u003eThe M-180's circuit topology descends directly from Rogue's flagship Apollo amplifiers, which established the company's reputation at the highest end of tube amplifier design. Each monoblock employs four KT120 output tubes in a push-pull configuration, driven by two 12AU7 and one 12AX7 in the gain and phase-splitter stages. The KT120 is a modern beam tetrode with exceptional plate dissipation and linear characteristics, capable of sustained high-power operation with service life typically reaching 3,000 to 5,000 hours. The entire signal path is built on Rogue's signature heavy 2-ounce copper circuit board with precision components and short signal paths, minimizing parasitic effects and keeping the noise floor well below the music.\u003c\/p\u003e\n\n\u003ch5\u003eTriode and Ultralinear Operation\u003c\/h5\u003e\n\u003cp\u003eAn external switch on each M-180 toggles between ultralinear mode (180 watts, maximum dynamic headroom) and triode mode (reduced power, smoother harmonic structure). Unlike many tube amplifiers that require powering down to change modes, the M-180's switch operates during playback, letting you match the amplifier's character to the music in real time. Ultralinear mode delivers the full authority the M-180 is capable of, with tight bass control and explosive dynamics. Triode mode shifts the emphasis toward midrange liquidity and spatial depth, making it a natural choice for acoustic recordings, vocals, and late-night listening at lower levels.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/m180_inline_silver_front.jpg?v=1774405527\" alt=\"Rogue Audio M-180 monoblock silver finish showing machined aluminum faceplate and tube cage\" style=\"display: block; margin-left: auto; margin-right: auto; border-radius: 15px; max-width: 100%; width: 938px;\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\n\u003ch5\u003ePower Supply and Output Transformers\u003c\/h5\u003e\n\u003cp\u003eEach M-180 monoblock contains a massive high-capacity power supply dedicated entirely to its own output stage, with no power sharing between channels. The energy reserves in each supply are designed to handle sustained low-frequency demands without voltage sag, keeping the output stage in its linear operating region even during the most punishing bass passages. The ultra-wide bandwidth output transformers are custom wound to achieve frequency response from 5Hz to 50kHz (±1dB), well beyond the audible range, ensuring phase accuracy and transient response that approaches the best solid-state designs. These transformers are mechanically isolated from the chassis to prevent vibration from coupling into the signal path.\u003c\/p\u003e\n\n\u003ch5\u003eBalanced Connectivity\u003c\/h5\u003e\n\u003cp\u003eEach M-180 accepts both balanced (XLR) and single-ended (RCA) connections with heavy-duty gold-plated connectors. The balanced inputs make the M-180 particularly well-suited to monoblock placement near speakers, where long interconnect runs between preamplifier and amplifier benefit from balanced cable's common-mode noise rejection. This setup also allows you to use shorter, higher-quality speaker cables while running longer, less expensive XLR interconnects from your preamp. The RP-7 v2 and RP-9 v2 preamplifiers both offer balanced outputs for a fully balanced Rogue signal path.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/m180_inline_rear_panel.jpg?v=1774405523\" alt=\"Rogue Audio M-180 monoblock rear panel showing KT120 output tubes, XLR and RCA inputs, and speaker binding posts\" style=\"display: block; margin-left: auto; margin-right: auto; border-radius: 15px; max-width: 100%; width: 938px;\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\n\u003ch5\u003e\"Dark\" Version\u003c\/h5\u003e\n\u003cp\u003eThe M-180 Dark ($9,495\/pair) applies Rogue's most comprehensive upgrade package to the already well-specified standard amplifier:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Power Supply:\u003c\/strong\u003e 33% larger power supply with Hex Fred high-speed diodes and polypropylene bypass capacitors for increased energy storage and faster recovery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Coupling Capacitors:\u003c\/strong\u003e Ultra-premium coupling capacitors in the signal path for maximum transparency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded Tube Complement:\u003c\/strong\u003e Premium matched octets of KT120 output tubes and upgraded small-signal tubes from Psvane, Telefunken, or RCA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCardas Rhodium Connections:\u003c\/strong\u003e Heavy-duty gold-plated XLR and RCA inputs with Rhodium binding posts from Cardas Audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNude Vishay Resistors:\u003c\/strong\u003e Precision resistors in critical input stages for lower noise and greater signal purity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 33% power supply increase in the Dark version is the largest of any Rogue Dark upgrade, reflecting the M-180's higher power demands and the benefits of additional energy reserves at this performance level.\u003c\/p\u003e\n\n\u003ch5\u003eExplore the Full Rogue Audio Power Amplifier Lineup\u003c\/h5\u003e\n\u003cp\u003eThe M-180 Monoblocks are Rogue's flagship pure tube power amplifiers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rogue-audio-stereo-100-amplifier\"\u003eStereo 100\u003c\/a\u003e\u003c\/strong\u003e - 100W pure tube stereo with Mundorf EVO Oil caps and ultra-wide bandwidth transformers. If you want Rogue's tube quality in a single chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rogue-audio-atlas-magnum-iii-power-amplifier\"\u003eAtlas Magnum III\u003c\/a\u003e\u003c\/strong\u003e - 100W pure tube stereo at Rogue's most accessible price point. Same KT120 output tubes, same triode\/ultralinear flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/rogue-audio-dragon-monoblock-amplifiers-pair\"\u003eDragoN Monoblocks\u003c\/a\u003e\u003c\/strong\u003e - 325W hybrid monoblocks with tubeD circuit and Hypex N-Core output. More power, zero maintenance, different sonic character.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003ePairing with a Rogue Preamplifier\u003c\/h5\u003e\n\u003cp\u003eAt the M-180's level, the preamplifier determines the system's character. The \u003ca href=\"\/products\/rogue-audio-rp-7-v2-preamplifier\"\u003eRP-7 v2\u003c\/a\u003e offers balanced outputs and a tube-regulated power supply that matches the M-180's performance tier, while the flagship \u003ca href=\"\/products\/rogue-audio-rp-9-v2-preamplifier\"\u003eRP-9 v2\u003c\/a\u003e extracts maximum resolution with its dual-mono topology and premium components. Both preamplifiers use 12AU7 tubes, keeping your tube inventory consistent across the system.\u003c\/p\u003e\n\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on exceptional service and relentless passion for hifi. At this level, every detail matters, and we're here to make sure you get it right. Whether you need help with system matching, setup guidance, or just want to talk through your options before pulling the trigger, owner Mike Hoatson is a phone call away. We don't just ship boxes. We help build systems, and our support lasts well beyond the sale.\u003c\/p\u003e\n\n\u003ch5\u003eM-180 Monoblock Specifications\u003c\/h5\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 16px 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: #f5f5f5; padding: 10px 12px; font-weight: bold; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePerformance (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003ePower Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e180 WPC (ultralinear), triode mode available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eAmplifier Topology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003ePush-pull tube, ultralinear\/triode switchable (Apollo-derived)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e5Hz - 50kHz ±1dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u0026lt;0.1% typical, \u0026lt;1.0% at rated power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e1.0V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e200K ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eTube Complement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e4 x KT120, 2 x 12AU7, 1 x 12AX7 per monoblock (matched octets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: #f5f5f5; padding: 10px 12px; font-weight: bold; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConnections (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eBalanced XLR + single-ended RCA (heavy-duty gold-plated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eSpeaker Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eHeavy-duty gold-plated binding posts (4-ohm and 8-ohm taps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eBiasing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eUser-adjustable with integral bias meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: #f5f5f5; padding: 10px 12px; font-weight: bold; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePower (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eMassive high-capacity linear with mechanically isolated transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003ePower Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e120\/240V - 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: #f5f5f5; padding: 10px 12px; font-weight: bold; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eOutput Transformers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eUltra-wide bandwidth, custom wound, mechanically isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eCircuit Board\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eHeavy (2 oz) copper with precision components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eFaceplate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e1\/2\" machined and engraved aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eTube Cage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eWelded-wire cage (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: #f5f5f5; padding: 10px 12px; font-weight: bold; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePhysical (Per Monoblock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e14.5\" W x 19\" D x 7\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e55 lbs each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e3 years (6 months on tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd; width: 34%;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eDesigned and handcrafted in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Rogue Audio","offers":[{"title":"Silver \/ Single \/ Standard","offer_id":41822109597792,"sku":"RAM180SISingle","price":3997.5,"currency_code":"USD","in_stock":true},{"title":"Black \/ Single \/ Standard","offer_id":41822109630560,"sku":"RAM180BLSingle","price":3997.5,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Pair \/ Standard","offer_id":42192214065248,"sku":"RAM180SIPair","price":7995.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Triplet \/ Standard","offer_id":42192214098016,"sku":"RAM180SITriplet","price":11992.5,"currency_code":"USD","in_stock":true},{"title":"Black \/ Pair \/ Standard","offer_id":42192214130784,"sku":"RAM180BLPair","price":7995.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Triplet \/ Standard","offer_id":42192214163552,"sku":"RAM180BLTriplet","price":11992.5,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Single \/ Dark","offer_id":42192230744160,"sku":"RAM180SISingleDark","price":4747.5,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Pair \/ Dark","offer_id":42192230776928,"sku":"RAM180SIPairDark","price":9495.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Triplet \/ Dark","offer_id":42192230809696,"sku":"RAM180SITripletDark","price":14242.5,"currency_code":"USD","in_stock":true},{"title":"Black \/ Single \/ Dark","offer_id":42192230842464,"sku":"RAM180BLSingleDark","price":4747.5,"currency_code":"USD","in_stock":true},{"title":"Black \/ Pair \/ Dark","offer_id":42192230875232,"sku":"RAM180BLPairDark","price":9495.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Triplet \/ Dark","offer_id":42192230908000,"sku":"RAM180BLTripletDark","price":14242.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/M-180monoblocksperpair.jpg?v=1746036030"},{"product_id":"unison-research-reference-monoblock-amplifiers-pair","title":"Unison Research Reference Monoblock Amplifiers; pair","description":"\u003cp\u003e\u003cstrong\u003eUnison Research Reference Monoblock Amplifiers\u003c\/strong\u003e are the flagship power amplifiers from the legendary Italian manufacturer, delivering pure Class A performance in a massive, no-compromise design. Each monoblock is a statement piece, built to drive the most demanding speakers with authority, grace, and tonal beauty that only high-current tube amplification can achieve.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80W pure Class A output:\u003c\/strong\u003e Massive tube power from four 845 triodes per monoblock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble parallel single-ended design:\u003c\/strong\u003e Preserves tonal richness and fluid dynamics under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual chassis construction:\u003c\/strong\u003e Separates power and signal stages for better noise isolation and performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference-grade tube complement:\u003c\/strong\u003e 4 x 845, 1 x ECC82, 1 x ECC83 per amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBi-wiring speaker outputs:\u003c\/strong\u003e Connect using 4 or 8 ohm taps for optimal matching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA and XLR inputs:\u003c\/strong\u003e Compatible with both balanced and single-ended preamps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlagship match:\u003c\/strong\u003e Engineered to pair with the Unison Research Reference Pre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItalian-built, no-compromise design:\u003c\/strong\u003e Over 150 lbs of handcrafted detail and sonic authority\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eFlagship Power, Singular Purpose\u003c\/h5\u003e\n\u003cp\u003eDesigned as the perfect match for the Reference Pre Preamplifier, each Unison Research Reference Monoblock operates in pure Class A with a double parallel single-ended output stage. Using four 845 triodes per amp, this design produces 80 watts of muscular, harmonically rich power with breathtaking control and musicality.\u003c\/p\u003e\n\u003ch5\u003eHandcrafted Dual-Chassis Construction\u003c\/h5\u003e\n\u003cp\u003eEach monoblock is assembled in two sections to isolate power and signal paths. The result is not just reduced interference and better signal integrity, but also a commanding presence both visually and sonically. The craftsmanship is exceptional, from the Italian woodwork and brushed metal to the meticulously selected internal components.\u003c\/p\u003e\n\u003ch5\u003eTuned to the Demands of the Finest Systems\u003c\/h5\u003e\n\u003cp\u003eWith switchable output taps for 4 or 8 ohms and both RCA and XLR inputs, the Reference Monoblocks adapt to high-end systems without compromise. The amps are designed to handle even the most complex speaker loads, delivering a soundstage that is deep, dimensional, and richly layered.\u003c\/p\u003e\n\u003ch5\u003eTube Complement and Bias\u003c\/h5\u003e\n\u003cp\u003eEach monoblock is equipped with 4 x 845 output tubes, supported by 1 x ECC82 and 1 x ECC83 in the input\/driver stage. Internal circuitry and thermal design allow for long-term tube stability and minimal maintenance, while still allowing seasoned tube enthusiasts to roll valves if desired.\u003c\/p\u003e\n\u003ch5\u003eMatched with the Unison Research Reference Pre\u003c\/h5\u003e\n\u003cp\u003eThese amplifiers were born from the same engineering vision that created the Unison Research Reference Pre, and they perform best when paired together. \u003ca title=\"Unison Research Reference Pre\" href=\"\/products\/unison-research-reference-pre-stereo-tube-preamplifier\"\u003eView the Unison Research Reference Pre page to learn more\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch5\u003eReference Monoblock Reviews\u003c\/h5\u003e\n\u003cblockquote style=\"border-left: 6px solid #A3704D; background-color: #ffffff; padding: 1em 1.5em; font-style: italic; margin: 2em 0;\"\u003e“When everything settles and the mind calms, what's left is music: vivid, beautiful, whole, and rendered with uncommon care. The Unison Reference amplifiers turn spending into savoring, and savor them I did.” \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-style: normal; display: block; margin-top: 0.5em;\"\u003e — Rogier van Bakel, \u003cem\u003eStereophile\u003c\/em\u003e \u003c\/span\u003e \u003cspan style=\"font-style: normal; display: block; margin-top: 0.5em;\"\u003e \u003ca href=\"https:\/\/www.stereophile.com\/content\/unison-research-reference-monoblock-power-amplifier\" style=\"color: #a3704d; text-decoration: underline;\" target=\"_blank\"\u003eRead the full article at Stereophile\u003c\/a\u003e \u003c\/span\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eThe Unison Research Reference Monoblock Amplifiers aren't the kind of products that get dumped precariously at your doorstep. At this level, white-glove matters. That’s why \u003cstrong\u003eMichael Hoatson, owner of The Listening Room\u003c\/strong\u003e, personally hand-delivers and installs these units nationwide \u003cstrong\u003efor free with purchase\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eMike works closely with every customer to ensure proper system integration, voltage matching, gain staging, and phono configuration. No shipping company will handle this preamp with the care and technical precision he brings to your door.\u003c\/p\u003e\n\u003cp\u003eWe’re a \u003cstrong\u003ethird-generation, family-owned high-end audio store\u003c\/strong\u003e based in Chestertown, Maryland. You’ll speak directly with us: no chatbots, no middlemen, no call centers. Just expert advice, unmatched service, and a shared passion for sonic perfection.\u003c\/p\u003e\n\u003cp\u003eHave questions about pairing this with the right monoblocks, cartridges, or cabling? Call or email us anytime. We’re here for your entire hi-fi journey.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eMono Valve Power Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Stage\u003c\/th\u003e\n\u003ctd\u003eDouble parallel single-ended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClass\u003c\/th\u003e\n\u003ctd\u003ePure Class A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValves\u003c\/th\u003e\n\u003ctd\u003e4 x 845, 1 x ECC82, 1 x ECC83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Power\u003c\/th\u003e\n\u003ctd\u003e80 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e20 Hz – 30 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeedback Factor\u003c\/th\u003e\n\u003ctd\u003e14 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Impedance\u003c\/th\u003e\n\u003ctd\u003e4 Ohm and 8 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003eLoudspeakers bi-wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs\u003c\/th\u003e\n\u003ctd\u003e1 x RCA, 1 x XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput Impedance\u003c\/th\u003e\n\u003ctd\u003e47 kOhm (RCA), 10 kOhm (XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003eApprox. 400 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e49 cm x 77.5 cm x H 28.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Weight\u003c\/th\u003e\n\u003ctd\u003e70 kg \/ 155 lbs (each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":42134361178208,"sku":"URREFMA","price":49999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/UnisonResearchReferenceMonoblockamplifiers-2ofthemdiagonalview.jpg?v=1752520789"},{"product_id":"kora-csa-1150-class-a-mono-amplifier","title":"Kora CSA 1150 Class A Mono Amplifier","description":"\u003cp\u003eThe Kora CSA 1150 is a compact yet powerful mono amplifier built for pure Class A amplification. Featuring Kora’s proprietary SquareTube® technology paired with a heavily filtered linear power supply, it delivers effortless dynamics and exceptional musicality. Designed to operate entirely within its comfort zone, the CSA 1150 ensures smooth, distortion-free sound reproduction with remarkable stability. Intelligent ON\/OFF signal detection and adaptive current management make it both efficient and convenient, while its robust French craftsmanship ensures long-term reliability.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure Class A Mono Power\u003c\/strong\u003e – 1 x 150 W \/ 8 Ω for uncompromising performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareTube® Technology\u003c\/strong\u003e – Extracts natural dynamics, detail, and tonal accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Filtering\u003c\/strong\u003e – 400,000 µF ensures stability and headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart ON\/OFF Management\u003c\/strong\u003e – Powers up with input signal, shuts down when idle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdaptive Current Control\u003c\/strong\u003e – Adjusts to speaker demands for efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium French Design\u003c\/strong\u003e – Aluminium and steel construction, mineral grey finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSquare Tube Technology\u003c\/h5\u003e\n\u003cp\u003eThe CSA1150 refines Kora’s Square Tube Technology into a design that thrives on balance and clarity. Its hybrid stage lets the tubes breathe warmth and dimensionality into the signal, while the transistor section ensures speed, grip, and low distortion. Together they create a sound that is open, unforced, and deeply engaging, ideal for extended listening without fatigue. \u003ca title=\"Learn more about Kora Square Tube Technology\" rel=\"noopener\" href=\"https:\/\/kora.fr\/en\/square-tube-2\/\" target=\"_blank\"\u003eLearn more about Square Tube Technology\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e420 x 440 x 260 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e32 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eAluminium and steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eMineral grey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories\u003c\/td\u003e\n\u003ctd\u003ePower cord, instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e1 x 150 W \/ 8 Ω (pure Class A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltering\u003c\/td\u003e\n\u003ctd\u003e400,000 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e1 RCA, 1 XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Management\u003c\/td\u003e\n\u003ctd\u003eAutomatic ON\/OFF (signal detection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Management\u003c\/td\u003e\n\u003ctd\u003eHigh\/low current switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Kora High Fidelity","offers":[{"title":"Black","offer_id":42326919643232,"sku":"KORACSA1150BL","price":24999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/CSAFront.jpg?v=1758975615"},{"product_id":"kora-csa-1200-class-a-mono-amplifier","title":"Kora CSA 1200 Class A Mono Amplifier","description":"\u003cp\u003eThe Kora CSA 1200 is a powerhouse mono amplifier designed for true Class A performance. Combining the innovative SquareTube® technology with a robust, highly filtered linear power supply, the CSA 1200 delivers uncompromising power and musical precision. Its architecture ensures effortless handling of demanding loudspeakers while maintaining natural tonal balance and refinement. With intelligent current and ON\/OFF management, the CSA 1200 operates efficiently without sacrificing its Class A purity.\u003c\/p\u003e\n\u003ch5\u003eSquare Tube Technology\u003c\/h5\u003e\n\u003cp\u003eIn the CSA1200, Kora’s Square Tube Technology is pushed to its fullest expression. The hybrid stage uses tubes to impart harmonic richness and dimensionality, while the high-current solid-state section delivers effortless control over even the most demanding loudspeakers. The result is an amplifier with immense authority that still preserves the delicacy and nuance of live music. For those seeking both scale and soul, the CSA1200 shows how far this unique design can go. \u003ca title=\"Learn more about Kora Square Tube Technology\" rel=\"noopener\" href=\"https:\/\/kora.fr\/en\/square-tube-2\/\" target=\"_blank\"\u003eLearn more about Square Tube Technology\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Class A Power\u003c\/strong\u003e – 200 W into 8 Ω, delivering pure, distortion-free amplification with exceptional dynamics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareTube® Technology\u003c\/strong\u003e – Preserves musical detail and phase accuracy, ensuring natural and lifelike reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Current Management\u003c\/strong\u003e – Automatically adapts between high and low current modes depending on speaker demand, optimizing energy usage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-Triggered ON\/OFF\u003c\/strong\u003e – Powers on when a signal is present and switches off when idle, offering convenience and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Filtering Capacity\u003c\/strong\u003e – Equipped with 560,000 µF of filtering, guaranteeing a stable and noise-free power supply for uncompromised performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eGeneral Characteristics\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e420 × 660 × 260 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eAluminium and steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eMineral grey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories\u003c\/td\u003e\n\u003ctd\u003ePower cord, instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eElectronic Features\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e1 × 200 W \/ 8 Ω (pure Class A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eSquareTube® + pure Class A design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltering\u003c\/td\u003e\n\u003ctd\u003e560,000 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e1 × RCA, 1 × XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON\/OFF Management\u003c\/td\u003e\n\u003ctd\u003eAutomatic signal-detection (on when signal present, off when idle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Management\u003c\/td\u003e\n\u003ctd\u003eAdaptive switching (high\/low current as needed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Kora High Fidelity","offers":[{"title":"Black","offer_id":42326919708768,"sku":"KORACSA1200BL","price":34999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/CSAFront.jpg?v=1758975615"},{"product_id":"thoress-se-300b-mono-power-amplifier-pair","title":"THÖRESS SE 300B Mono Power Amplifier (Pair)","description":"\u003cp\u003eThe THÖRESS SE-300B Mono Power Amplifier is a purist's dream, meticulously engineered to extract the definitive performance from the world's most famous filamentary power triode: the 300B. Operating in pure Single-Ended Class-A mode with zero negative feedback, these monoblocks offer 10 Watts of output power that belies the numbers, delivering a soundstage of immense depth, fluid dynamics, and startling realism. While many 300B amplifiers sound \"soft\" or overly romantic, the THÖRESS implementation is powerful and resolute. This is achieved through a unique single-stage driver circuit utilizing EL822 pentodes in triode mode and custom in-house C-Core output transformers, ensuring that the amplifier grips the loudspeaker with authority while preserving the magical midrange texture that makes the 300B legendary.\u003c\/p\u003e\n\u003ch5\u003eKey Features:\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure Single-Ended Class-A:\u003c\/strong\u003e Delivers 10 Watts of unadulterated Class-A power using the classic 300B filamentary triode for ultimate linearity and harmonic richness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerful Driver Stage:\u003c\/strong\u003e Features a robust single-stage driver tailored around two EL822 (CV2382) power pentodes operated in triode mode at high idle current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-House C-Core Transformers:\u003c\/strong\u003e Equipped with proprietary tape-wound cut core (C-core) output transformers, manufactured in-house to meet the highest possible standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Global Feedback:\u003c\/strong\u003e Employs a minimalist schematic with absolutely no global feedback, preserving the natural phase integrity and micro-dynamics of the signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Heated 300B:\u003c\/strong\u003e The 300B tube is DC heated with a cathode balance adjustment potentiometer to eliminate residual hum for a pitch-black background.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint-to-Point Wiring:\u003c\/strong\u003e Built entirely by hand in Germany using meticulous point-to-point wiring techniques for superior reliability and signal purity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eRedefining the 300B Sound\u003c\/h5\u003e\n\u003cp\u003eThe 300B tube is often associated with a \"lush\" but potentially loose sound. Reinhard Thöress challenges this convention by pairing the tube with an extraordinarily powerful driver stage. By using two EL822\/CV2382 power pentodes (wired in triode mode) to drive the 300B, the amplifier ensures the output tube is fully modulated with ample headroom. This results in a sonic presentation that retains the warmth and \"glow\" of the 300B but adds unexpected dynamic slam, speed, and bass definition.\u003c\/p\u003e\n\u003ch5\u003eThe C-Core Advantage\u003c\/h5\u003e\n\u003cp\u003eThe soul of any single-ended amplifier lies in its output transformer. THÖRESS produces these critical components in-house using high-grade tape-wound cut cores (C-cores). Unlike standard EI cores, C-cores allow for tighter winding and superior magnetic flux handling. This results in wider bandwidth and lower distortion, enabling the SE-300B to drive 4, 8, or 16-ohm loads with a level of transparency and control that is rare in the world of low-power tube amps.\u003c\/p\u003e\n\u003ch5\u003eNoise-Free Operation\u003c\/h5\u003e\n\u003cp\u003eTo ensure compatibility with high-efficiency loudspeakers (horns, full-range drivers), the SE-300B is designed for ultra-low noise. The 300B filament is DC heated, and a rear-mounted rotary potentiometer allows for precise balancing of the cathode point to nullify any hum. Additionally, the amplifier is designed with moderate gain (low input sensitivity), which prevents \"hiss\" issues common in high-sensitivity systems and allows for finer volume control range on your preamplifier.\u003c\/p\u003e\n\u003ch5\u003eHandcrafted in Germany\u003c\/h5\u003e\n\u003cp\u003eEach monoblock is a testament to functional industrial art. The chassis is constructed from non-magnetic aluminum, powder-coated in the distinctive THÖRESS grey, with anodized printing. Internally, the construction is entirely point-to-point, utilizing high-grade foil-in-oil capacitors produced in Germany. From the hand-wound mains transformers to the vibration-isolated mounting, every detail is considered for longevity and sonic purity.\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTopology\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-Ended Triode (SET), Zero Feedback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOperation Class\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003ePure Class A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePower Output\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Watts per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Tube\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x 300B Filamentary Triode (per block)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDriver Tubes\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x EL822 \/ CV2382 (per block, wired in Triode mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eInputs\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x RCA Unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Matching\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e4, 8, 16 Ohm (via internal soldered jumpers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTransformers\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eIn-house Hand-wound C-Core Output and Mains Transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDimensions (W x D x H)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e150 x 595 x 330 mm (Depth includes terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eWeight\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e14 kg (each monoblock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOrigin\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHandmade in Aachen, Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"THÖRESS","offers":[{"title":"Default Title","offer_id":42422370828384,"sku":"THSE300B","price":14999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/se300b_bigger.jpg?v=1769837310"},{"product_id":"thoress-se-845-mono-power-amplifier-pair","title":"THÖRESS SE-845 Mono Power Amplifier (Pair)","description":"\u003cp\u003eThe THÖRESS SE-845 Mono Power Amplifier represents the absolute pinnacle of Reinhard Thöress’s all-tube amplifier range. Designed to unlock the full potential of the legendary 845 filamentary power triode, these monoblocks operate in pure Single-Ended Class-A mode to deliver 20 Watts of musically potent output. Unlike typical designs that struggle to drive the demanding 845 tube, the SE-845 features a highly sophisticated single-stage driver circuit tailored around EL822 power pentodes. This robust architecture, combined with custom-made in-house C-core output transformers, allows the amplifier to exert iron-fisted control over loudspeakers while retaining the richly textured, holographic, and flowing presentation that only the finest single-ended triodes can achieve.\u003c\/p\u003e\n\u003ch5\u003eKey Features:\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure Single-Ended Class-A:\u003c\/strong\u003e Delivers 20 Watts of unadulterated Class-A power using the famous 845 filamentary triode for ultimate linearity and tone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Driver Stage:\u003c\/strong\u003e Utilizes a powerful single-stage driver tailored around two EL822 (CV2382) power tubes operated in triode mode to fully excite the 845 grid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-House C-Core Transformers:\u003c\/strong\u003e Features proprietary tape-wound cut core (C-core) output transformers with dual-coil windings, manufactured in-house for vanishingly low distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Global Feedback:\u003c\/strong\u003e Employs a minimalist circuit topology with absolutely no global feedback, preserving the natural phase integrity and dynamics of the signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Heated 845:\u003c\/strong\u003e The 845 tube is DC heated with a cathode balance adjustment to eliminate residual hum and heater voltage ripple for a pitch-black background.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint-to-Point Wiring:\u003c\/strong\u003e Built entirely by hand in Germany using meticulous point-to-point wiring techniques for superior reliability and signal purity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eTaming the 845 Giant\u003c\/h5\u003e\n\u003cp\u003eThe 845 power triode is revered for its sonic capability but is notoriously difficult to drive, requiring a massive voltage swing (approx. 300V peak-to-peak) at the control grid. The SE-845 solves this with a unique single-stage driver circuit using a pair of EL822\/CV2382 power tubes running in triode mode at high idle current. This driver stage provides the necessary swing and low output impedance to fully wake up the 845, resulting in a sound that combines the delicacy of a 300B with the scale, authority, and dynamic slam of a high-power amplifier.\u003c\/p\u003e\n\u003ch5\u003eThe Heart of the System: In-House Transformers\u003c\/h5\u003e\n\u003cp\u003eIn any Single-Ended amplifier, the output transformer (OPT) is the most critical component. THÖRESS manufactures their OPTs in-house using an exceptionally large tape-wound cut core (C-core). This design offers far superior permeability and linearity compared to standard EI cores. The dual-coil winding technique ensures excellent frequency response and minimal phase shift, allowing the SE-845 to drive 4, 8, and 16-ohm loads with transparency and grip often missing from lesser SET designs.\u003c\/p\u003e\n\u003ch5\u003eSilence is Golden\u003c\/h5\u003e\n\u003cp\u003eTo ensure the music emerges from a silent background, the SE-845 employs specific low-noise design choices. The 845 tube is heated via a filtered DC supply, and a rotary potentiometer allows the user to balance the cathode point perfectly against the filament, nulling out any residual hum. Furthermore, the mains transformer is also produced in-house and mounted on isolation elements to prevent mechanical vibration from reaching the sensitive audio circuit.\u003c\/p\u003e\n\u003ch5\u003ePurist Construction\u003c\/h5\u003e\n\u003cp\u003eTrue to the THÖRESS philosophy, the SE-845 eschews balanced circuitry (XLR) in favor of a pure single-ended (RCA) topology, which Thöress believes offers superior sonic fidelity. The chassis is non-magnetic aluminum, powder-coated in the brand’s signature retro-lab aesthetic. Inside, high-grade German-made electrolytic capacitors and a C-core filter choke ensure the power supply is as robust as the signal path is pure.\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTopology\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-Ended Triode (SET), Zero Feedback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOperation Class\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003ePure Class A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePower Output\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e20 Watts per channel (into 4, 8, or 16 Ohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Tube\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x 845 Filamentary Triode (per block)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDriver Tubes\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x EL822 \/ CV2382 (per block, wired in Triode mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eInputs\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x RCA Unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Matching\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e4, 8, 16 Ohm (via internal soldered jumpers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTransformers\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eIn-house Hand-wound C-Core Output and Mains Transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDimensions (W x D x H)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e150 x 595 x 330 mm (Depth includes terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eWeight\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e18 kg (each monoblock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOrigin\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHandmade in Aachen, Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"THÖRESS","offers":[{"title":"Default Title","offer_id":42422370893920,"sku":"THSE845","price":16999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/thoeress-se845-1-Photoroom.jpg?v=1764774460"},{"product_id":"thoress-eht-hybrid-triode-mono-amplifier-pair","title":"THÖRESS EHT Hybrid Triode Mono Amplifier (Pair)","description":"\u003cp\u003eThe THÖRESS EHT Hybrid Triode Mono Amplifier (EHT Monoblock) represents a radical yet purist approach to amplification, designed to bridge the gap between the emotional engagement of single-ended triodes and the driving capability of solid-state technology. \"EHT\" stands for \u003cem\u003eEINTAKT-HYBRID-TRIODE\u003c\/em\u003e (Single-Ended Hybrid Triode), a proprietary topology developed by Reinhard Thöress. Unlike typical hybrid designs that simply marry a tube preamp to a standard Class AB output stage, the EHT Monoblock utilizes a single-ended triode gain stage followed by a unity-gain MOSFET output buffer. This unique configuration allows the amplifier to deliver the harmonic richness and texture of a vacuum tube while providing the high current and damping factor necessary to drive difficult loudspeaker loads with absolute authority.\u003c\/p\u003e\n\u003ch5\u003eKey Features:\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEHT Topology:\u003c\/strong\u003e A unique Single-Ended Hybrid Triode circuit combining a vacuum tube voltage gain stage with a unity-gain MOSFET current buffer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-A Operation:\u003c\/strong\u003e Runs in pure Single-Ended Class-A mode for zero switching distortion and ultimate linearity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Complement:\u003c\/strong\u003e Utilizes highly linear 6J5GT (or 7A4) and 12HG7 vacuum tubes for voltage amplification and driver duties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Global Feedback:\u003c\/strong\u003e Designed without any global negative feedback to preserve the natural dynamic structure and phase integrity of the music.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Damping Factor:\u003c\/strong\u003e Low output impedance ensures excellent control over loudspeakers with low efficiency or critical impedance curves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Gain \u0026amp; Bass Boost:\u003c\/strong\u003e Features a 6-position rear rotary switch for on-the-fly gain adjustment and subtle bass equalization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-House Transformers:\u003c\/strong\u003e Equipped with ultra-low noise, hand-wound C-Core mains transformers produced in-house by THÖRESS in Germany.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint-to-Point Wiring:\u003c\/strong\u003e Meticulous hand-construction using air-wiring techniques for the shortest possible signal paths and long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eThe EHT Concept: Purity and Power\u003c\/h5\u003e\n\u003cp\u003eThe philosophy behind the EHT Monoblock is to allow the vacuum tube to do what it does best—amplify voltage—while relieving it of the burden of driving the loudspeaker load. The voltage gain is handled entirely by a single-ended triode stage (typically a vintage 6J5GT or 7A4 type), chosen for its exceptional linearity. This signal is then handed off to a unity-gain MOSFET output stage.  Because the MOSFETs provide only current amplification (buffering) without adding voltage gain, the sonic signature of the amplifier remains dominated by the single-ended triode, yet it possesses the muscle to deliver up to 50 watts into a 4-ohm load with rock-solid stability.\u003c\/p\u003e\n\u003ch5\u003eUltimate Flexibility\u003c\/h5\u003e\n\u003cp\u003eRecognizing that system matching is critical, THÖRESS has equipped the EHT Monoblock with a unique 6-position rotary switch on the rear panel.  This allows the user to adjust the input sensitivity (gain) in precise steps, ensuring optimal compatibility with a wide range of preamplifiers and loudspeaker efficiencies. Additionally, specific positions on this dial engage a subtle, active bass boost. This feature is implemented without sound-degrading tone control circuitry, allowing users to restore tonal balance in rooms that swallow low frequencies or to flesh out the bottom end of lean-sounding speakers.\u003c\/p\u003e\n\u003ch5\u003eVintage Aesthetic, Modern Engineering\u003c\/h5\u003e\n\u003cp\u003eVisually, the EHT Monoblock pays homage to professional laboratory equipment from the golden age of audio. The chassis is constructed from non-magnetic aluminum with a distinctive powder-coated finish and anodized printing  Despite its retro looks, the internal engineering is state-of-the-art, featuring high-grade electrolytic capacitors made in Germany, vibration-isolated transformers, and a layout optimized for low noise and thermal stability. It is a \"forever component,\" built to provide decades of musical enjoyment.\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTopology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-Ended Hybrid Triode (EHT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperation Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass A (High Idle Current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Output (8 Ohms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Output (6 Ohms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Output (4 Ohms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Complement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x 6J5GT (or 7A4), 1 x 12HG7 per monoblock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeedback\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZero Global Negative Feedback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGain Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6-Position Rotary Switch (Rear Panel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x RCA Unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-quality binding posts (4mm banana\/spade\/bare wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMains Transformer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn-house hand-wound C-Core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W x D x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e434 x 454 x 184 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~15.0 kg (per unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHandmade in Aachen, Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"THÖRESS","offers":[{"title":"Default Title","offer_id":42422371647584,"sku":"THEHTMONO","price":17999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/thoeress-eht-mono-1-Photoroom.jpg?v=1764774504"},{"product_id":"rogue-audio-m250-ultra-monoblock-amplifier","title":"Rogue Audio M-250 Ultra Monoblock Amplifier","description":"\u003cp\u003eThe Rogue Audio M-250 Ultra is a pure tube monoblock amplifier and the new flagship of Rogue Audio's amplifier lineup. A worthy successor to the Apollo Dark, the M-250 Ultra combines a continuous power output of over 250 watts with ruler-flat frequency response, tremendous bandwidth, and vanishingly low distortion. Like every Rogue Audio product, the M-250 Ultra is designed and hand-built in Brodheadsville, Pennsylvania.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the Rogue Audio M-250 Ultra\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonoblock design:\u003c\/strong\u003e Dedicated amplifier per channel for perfect channel separation and zero crosstalk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive linear power supply:\u003c\/strong\u003e Enormous high-storage linear power supplies enable the reproduction of musical transients far beyond the amplifier's rated output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-high performance transformers:\u003c\/strong\u003e Ultra-high tolerance components and huge transformers contribute to peerless build quality\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube complement:\u003c\/strong\u003e 6x KT88, 2x 12AU7, and 1x 12AX7 tubes per amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in bias meters:\u003c\/strong\u003e Individual bias switches and a built-in meter make tube biasing straightforward, even for tube newcomers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriode\/ultralinear switching:\u003c\/strong\u003e On-the-fly switch lets you select either Triode or Ultralinear operation to tailor the sonic character to your speakers and preferences\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced and single-ended inputs:\u003c\/strong\u003e Both XLR (balanced) and RCA (single-ended) connections for flexibility across system configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 and 8 ohm binding posts:\u003c\/strong\u003e Heavy-duty rhodium-plated binding posts with multiple impedance taps for optimal speaker matching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRhodium-plated connectors:\u003c\/strong\u003e Heavy-duty rhodium-plated RCA connectors and binding posts throughout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll precision components:\u003c\/strong\u003e Every unit is fully tested, burned-in, and auditioned before shipping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Entirely designed and built at the Rogue Audio facility in Brodheadsville, Pennsylvania\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003ePower and Finesse in Equal Measure\u003c\/h5\u003e\n\u003cp\u003eThat these pure tube amplifiers deliver a continuous power output of over 250 watts is but a small part of the story. The M-250 Ultra was designed and engineered without compromise. The enormous linear power supplies enable the reproduction of musical transients at far beyond the amplifier's rated output, giving the M-250 Ultra the headroom to handle demanding passages and difficult speaker loads with authority. Whether your passion is jazz, rock, or symphonic works, the M-250 Ultra provides the clarity and dynamics to closely rival the original performance.\u003c\/p\u003e\n\n\u003ch5\u003eA New Chapter for Rogue Monoblocks\u003c\/h5\u003e\n\u003cp\u003eThe M-250 Ultra represents a bold design departure for Rogue Audio. Where the Apollo monoblocks featured the brand's familiar rectangular chassis, the M-250 Ultra adopts a compact cube form factor with clean, modern lines. The CNC-machined brushed aluminum enclosure houses the tubes beneath a recessed viewing window on top, creating a striking visual presence that is distinctly different from anything Rogue has built before. The overall build quality reflects Rogue's continued investment in American manufacturing.\u003c\/p\u003e\n\n\u003ch5\u003eExplore the Full Rogue Audio Monoblock Lineup\u003c\/h5\u003e\n\u003cp\u003eThe M-250 Ultra joins Rogue Audio's monoblock amplifier range alongside two currently available models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/rogue-audio-m-180-monoblocks-per-pair\" title=\"Rogue Audio M-180 Monoblocks\"\u003eRogue Audio M-180 Monoblocks\u003c\/a\u003e – 180 watts per channel in ultralinear mode, with KT120 output tubes and Rogue's proven monoblock platform\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/rogue-audio-dragon-monoblock-amplifiers-pair\" title=\"Rogue Audio DragoN Monoblock Amplifiers\"\u003eRogue Audio DragoN Monoblock Amplifiers\u003c\/a\u003e – Rogue's hybrid monoblock design combining a tube input stage with a MOSFET output stage for 300+ watts of power\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. We've carried Rogue Audio for years because their products deliver real value and hold up over time. Every component is designed and built in Pennsylvania, and we're proud to support a manufacturer that shares our commitment to quality. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction.\u003c\/p\u003e\n\n\u003ch5\u003eRogue Audio M-250 Ultra Specifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 WPC in Ultralinear mode with KT-88 tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLess than 0.1% typical, 1% at peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20Hz - 25kHz at full output; 10Hz - 100kHz at 10 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.0V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBalanced (XLR) and Single-Ended (RCA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeaker Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ohm and 8 ohm rhodium-plated binding posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Complement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6x KT88, 2x 12AU7, 1x 12AX7 (per amplifier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.75\" W x 18\" D x 13\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e88 lbs each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V\/230V, 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Rogue Audio","offers":[{"title":"Silver \/ Single","offer_id":42597412208736,"sku":"RAM250USI-Single","price":9497.5,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Pair","offer_id":42670143504480,"sku":"RAM250USI-Pair","price":18995.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Triplet","offer_id":42670143537248,"sku":"RAM250USI-Triplet","price":28492.5,"currency_code":"USD","in_stock":true},{"title":"Black \/ Single","offer_id":42670143570016,"sku":"RAM250UBL-Single","price":9497.5,"currency_code":"USD","in_stock":false},{"title":"Black \/ Pair","offer_id":42670143635552,"sku":"RAM250UBL-Pair","price":18995.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ Triplet","offer_id":42670143668320,"sku":"RAM250UBL-Triplet","price":28492.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/m250_pair_white.jpeg?v=1774905259"},{"product_id":"primare-928-special-edition-monoblock-amplifier","title":"Primare 928 Special Edition Monoblock Amplifier","description":"\u003cp\u003eThe Primare 928 Special Edition Monoblock Amplifier is a single-channel power amplifier built for Primare's 40th-anniversary 928 series. It uses a switch-mode supply for the output stage and a dedicated isolated linear supply for the input stage, and delivers 600 watts into 8 ohms, 1200 watts into 4 ohms, and 1400 watts peak. It shares the Porsche 928-inspired wedge chassis from Primare's original 1986 design and can be run singly or as a stereo pair.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the Primare 928 Special Edition Monoblock Amplifier\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-channel monoblock power amplifier\u003c\/strong\u003e for the 40th-anniversary 928 series\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e600 watts into 8 ohms, 1200 watts into 4 ohms, 1400 watts peak\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSwitch-mode supply for the output stage, dedicated isolated linear supply for the input stage\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHypex Ncore amplification\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorsche 928-inspired wedge chassis\u003c\/strong\u003e for internal isolation and short signal paths\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRun singly or as a stereo pair\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBlack finish\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eTwo Power Supplies, One Channel\u003c\/h5\u003e\n\u003cp\u003eThe monoblock is where the 928 Special Edition reaches furthest. As Terry Medalen of Primare describes it: \"Where things get really exciting is with the mono amplifier. It uses the same switch-mode power supply for the amp stage, but for the input stage we use a dedicated isolated linear power supply for the input stage alone.\"\u003c\/p\u003e\n\n\u003ch5\u003eOutput\u003c\/h5\u003e\n\u003cp\u003eThat architecture, paired with Hypex Ncore amplification, produces 600 watts into 8 ohms, 1200 watts into 4 ohms, and 1400 watts at peak. A pair of monoblocks gives each channel its own chassis, power supply, and amplifier, which is the traditional reason to step from a stereo amplifier up to monos.\u003c\/p\u003e\n\n\u003ch5\u003eWhy the Wedge\u003c\/h5\u003e\n\u003cp\u003eThe slanted profile is not styling for its own sake. The wedge shape lets Primare integrate and isolate the circuitry inside the chassis while keeping signal paths short, the same engineering logic that shaped the original 928.\u003c\/p\u003e\n\n\u003ch5\u003eMore in the Primare 928 Special Edition Series\u003c\/h5\u003e\n\u003cp\u003eThe 928 Special Edition is a full separates system. Feed these monoblocks with the \u003ca href=\"\/products\/primare-928-special-edition-preamplifier\"\u003e928 Special Edition Preamplifier\u003c\/a\u003e, or consider the \u003ca href=\"\/products\/primare-928-special-edition-stereo-amplifier\"\u003e928 Special Edition Stereo Amplifier\u003c\/a\u003e for a single-chassis option.\u003c\/p\u003e\n\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on exceptional service and relentless passion for hifi. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don't just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\n\u003ch5\u003ePrimare 928 Special Edition Monoblock Amplifier Specifications\u003c\/h5\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:34%;background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width:66%;padding:12px;border:1px solid #e3e3e3;\"\u003eMonoblock (single-channel) power amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eOutput power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e600 watts into 8 ohms, 1200 watts into 4 ohms, 1400 watts peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eOutput stage supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eSwitch-mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eInput stage supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eDedicated isolated linear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eAmplification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eHypex Ncore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eSingle or stereo pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eFull measured specifications will be confirmed at launch.\u003c\/em\u003e\u003c\/p\u003e","brand":"Primare","offers":[{"title":"Default Title","offer_id":42807033167968,"sku":"PRI928SEMONO","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/amp_hero_v3_938_c17b5d81-6d06-4b9b-9528-b36a8c3a150d.jpg?v=1781003063"},{"product_id":"grimm-audio-pa1-mono-block-power-amplifier","title":"Grimm Audio PA1 Mono-Block Power Amplifier","description":"\u003cp\u003eThe Grimm Audio PA1 is a Class AB mono-block power amplifier, and the first amplifier Grimm Audio has built in its thirty-year history. Each PA1 drives a single channel with more than 150 watts into 8 ohms, using a fully balanced circuit of 96 fast output transistors and a linear power supply. It was engineered as the power partner for the MU2, and shares that streamer's compact chassis by industrial designer Michiel Uylings.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the Grimm Audio PA1\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass AB mono-block design\u003c\/strong\u003e, one chassis per channel\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMore than 150 watts into 8 ohms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e96 fast power transistors\u003c\/strong\u003e on an aluminum circuit board, the \"Pierick Amp\" output stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully balanced signal path\u003c\/strong\u003e with no series coupling capacitors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear power supply\u003c\/strong\u003e with an Amplimo toroidal transformer and 90,000 µF of reservoir capacitance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable gain\u003c\/strong\u003e of 26 dB or 18 dB to match low- and high-gain preamplifiers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBalanced XLR and single-ended RCA inputs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic line-voltage switching\u003c\/strong\u003e and auto on\/off standby\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFive-year limited warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eGrimm Audio's First Power Amplifier\u003c\/h5\u003e\n\u003cp\u003eGrimm Audio built its name on digital and on decades of work in professional mastering: the MU1 and MU2 music players, the CC1 and CC2 master clocks. The PA1 began because the company struggled to find an amplifier that did justice to the MU2 in demonstrations. Prototypes appeared at Munich High End in 2023, and several years of refinement followed. The amplifier is named the Pierick Amp, in honor of engineer Henk ten Pierick, whose 1985 circuit concept forms its foundation. As Grimm Audio creative director Eelco Grimm puts it, \"We have developed a solid-state amplifier capable of achieving an extraordinary combination of transparency, control, and musical naturalness.\"\u003c\/p\u003e\n\n\u003ch5\u003eThe Pierick Amp Output Stage\u003c\/h5\u003e\n\u003cp\u003eAt the heart of the PA1 are 96 small, fast power transistors mounted on a modern aluminum printed circuit board. The tight thermal coupling that aluminum provides holds the output stage at a precisely defined operating point. In Grimm's words, this gives \"an extremely well defined power output stage setting point, through which the output stage impedance remains constant over the full cross-over region, resulting in the lowest possible distortion of dynamic signals.\" It is a Class AB design that behaves, through the critical crossover region, far more like the best of Class A.\u003c\/p\u003e\n\n\u003ch5\u003eA Linear Power Supply\u003c\/h5\u003e\n\u003cp\u003eThe PA1 uses a traditional linear supply rather than a switch-mode design. A large Amplimo toroidal transformer was chosen for its minimal capacitive coupling to the mains, feeding 90,000 µF of reservoir capacitance for abundant current on demand. Separate local stabilization keeps the driver and feedback circuits working independently of the current the loudspeaker draws, so dynamics stay clean under load.\u003c\/p\u003e\n\n\u003ch5\u003eA Direct, Balanced Signal Path\u003c\/h5\u003e\n\u003cp\u003eThe input path carries no series coupling capacitors, and protection circuitry keeps relay contacts out of the speaker signal path. Dedicated feedforward correction reduces phase-modulation distortion, the subtle time smearing that occurs when signal amplitude changes, and a second-order feedback loop lowers remaining distortion without reintroducing it. The damping factor exceeds 800, for tight control of the loudspeaker.\u003c\/p\u003e\n\n\u003ch5\u003eMore from Grimm Audio\u003c\/h5\u003e\n\u003cp\u003eThe PA1 is built to partner the \u003ca href=\"\/products\/grimm-audio-mu2-digital-music-streamer-dac-preamp\"\u003eGrimm Audio MU2\u003c\/a\u003e, which combines a music streamer, DAC, and reference analog preamplifier in one chassis, with a single MU2 feeding a pair of PA1 monoblocks directly. Add the \u003ca href=\"\/products\/grimm-audio-pw1-phono-preamplifier\"\u003ePW1 Phono Preamplifier\u003c\/a\u003e for vinyl, or explore the \u003ca href=\"\/products\/grimm-audio-ls1c-loudspeaker\"\u003eLS1c\u003c\/a\u003e active loudspeaker system.\u003c\/p\u003e\n\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on exceptional service and relentless passion for hifi. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don't just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\n\u003ch5\u003eGrimm Audio PA1 Specifications\u003c\/h5\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:34%;background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width:66%;padding:12px;border:1px solid #e3e3e3;\"\u003eClass AB mono-block power amplifier (one per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003ePower output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eMore than 150 W into 8 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eOutput stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e96 fast transistors on an aluminum PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e26 dB or 18 dB, selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e1× balanced XLR, 1× RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eDamping factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eGreater than 800 (8 Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eLess than 0.0001% (1 W, 8 Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eSignal-to-noise ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e118 dB (150 W, 8 Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eFrequency response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e0.1 Hz – 300 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003ePower supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eLinear, Amplimo toroidal transformer, 90,000 µF reservoir\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e250 × 250 × 240 mm (W × D × H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e15 kg each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003e5-year limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;border:1px solid #e3e3e3;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #e3e3e3;\"\u003eComing soon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eFull measured specifications and pricing will be confirmed at launch.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grimm Audio","offers":[{"title":"Default Title","offer_id":42851994075232,"sku":"GRIPA1","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/grimm-pa1-01-hero.jpg?v=1781019662"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/collections\/CSAFront_7ec04879-c592-41da-acd3-bfbaa2b6bf7d.jpg?v=1783518090","url":"https:\/\/listenroom.com\/collections\/monoblock-amplifiers.oembed","provider":"The Listening Room","version":"1.0","type":"link"}