{"title":"Unison Research Discontinued","description":"\u003cp\u003eA Unison Research component lands on this page when Unison stops building it. That covers the \u003ca href=\"\/products\/unison-research-sinfonia-stereo-tube-integrated-amplifier\"\u003eSinfonia\u003c\/a\u003e, \u003ca href=\"\/products\/unison-research-s6-stereo-integrated-tube-amplifier\"\u003eS6\u003c\/a\u003e, \u003ca href=\"\/products\/unison-research-triode-25-tube-integrated-amplifier\"\u003eTriode 25\u003c\/a\u003e, \u003ca href=\"\/products\/unison-research-preludio-tube-integrated-amplifier\"\u003ePreludio\u003c\/a\u003e and \u003ca href=\"\/products\/unison-research-simply-italy-stereo-integrated-amplifier\"\u003eSimply Italy\u003c\/a\u003e tube integrateds, the hybrid \u003ca href=\"\/products\/unison-research-unico-90-stereo-tube-hybrid-integrated-amplifier\"\u003eUnico 90\u003c\/a\u003e and \u003ca href=\"\/products\/unison-research-unico-due-integrated-amplifier\"\u003eUnico Due\u003c\/a\u003e, the \u003ca href=\"\/products\/unison-research-unico-cd-uno-cd-player\"\u003eUnico CD Uno\u003c\/a\u003e and \u003ca href=\"\/products\/unison-research-unico-cd-due-cd-player\"\u003eUnico CD Due\u003c\/a\u003e CD players, and the \u003ca href=\"\/products\/unison-research-sh-headphone-amplifier\"\u003eSH\u003c\/a\u003e headphone amplifier. Their pages stay live so owners and second-hand buyers keep the full specs in one place.\u003c\/p\u003e\n\n\u003cp\u003eThree of those amplifiers live on as Black Editions. Unison makes the \u003ca href=\"\/products\/unison-research-simply-italy-black-edition-tube-integrated-amplifier\"\u003eSimply Italy Black Edition\u003c\/a\u003e, \u003ca href=\"\/products\/unison-research-triode-25-black-edition-tube-integrated-amplifier\"\u003eTriode 25 Black Edition\u003c\/a\u003e and \u003ca href=\"\/products\/unison-research-s6-black-edition-tube-integrated-amplifier\"\u003eS6 Black Edition\u003c\/a\u003e today, and the \u003ca href=\"\/products\/unison-research-unico-nuovo-integrated-amplifier\"\u003eUnico Nuovo\u003c\/a\u003e is the closest current Unico to the Due in price. Everything else we carry from Unison today, from the Unico hybrids to the Reference monoblocks, is in the main \u003ca href=\"\/collections\/unison-research\"\u003eUnison Research collection\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"unison-research-sh-headphone-amplifier","title":"Unison Research SH Headphone Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research SH Headphone Amplifier is meticulously crafted for audiophiles seeking the ultimate personal listening experience. Blending traditional tube warmth with cutting-edge digital technology, the SH offers a unique combination of vintage sound and modern convenience. It's designed to satisfy both the seasoned listener and the modern music lover.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eClass A Tube Circuitry:\u003c\/strong\u003e Utilizes ECC83 and EL84 valves for a warm, detailed sound with low distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eAdvanced USB DAC: \u003c\/strong\u003eFeatures a high-performance ESS Sabre DAC, supporting up to 384kHz PCM and DSD128 formats.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eDual Headphone Outputs:\u003c\/strong\u003e Two parallel outputs with a sensitivity switch to accommodate a broad range of headphone impedances.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eLow Negative Feedback Design: \u003c\/strong\u003eMaintains low distortion and consistent sound quality across the frequency spectrum.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eSuperior Build Quality:\u003c\/strong\u003e Housed in a robust, elegantly designed chassis that reflects the high standards of Unison Research.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eSophisticated Tube Design\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe SH employs a carefully engineered tube circuit, featuring an ECC83 valve in the input stage and an EL84 valve in the output stage, both operating in pure Class A. This configuration ensures minimal distortion and delivers a rich, coherent sound signature. The EL84 valve, in particular, is selected for its ability to drive the output transformer effectively, providing optimal electrical and sonic characteristics.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eVersatile Connectivity\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe SH is equipped to handle a wide variety of headphones, thanks to its linear circuit and adjustable sensitivity switch. This allows users to match the output to the specific needs of their headphones, whether high or low impedance. The two parallel headphone outputs also make it easy to switch between different headphones or share the listening experience with another person.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor connectivity, the SH includes a standard unbalanced RCA input for traditional analog sources. Additionally, the integrated USB DAC supports high-resolution audio formats, ensuring that digital audio is rendered with exceptional clarity and detail. The USB DAC employs a jitter-elimination circuit and galvanic isolation, delivering a pristine signal conversion that preserves the integrity of the music.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eThe Listening Room Experience\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eYour listening space is unique, and so are your needs. That's why we take the time to understand your preferences, your room acoustics, and your sonic dreams. We'll guide you through our range of hi-fi options, ensuring you find the perfect match for your space and budget. We believe in personal connections, exceptional service, and expert advice because when it comes to sound, there's no one-size-fits-all solution. Contact us to learn more.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eSpecifications\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eUSB DAC Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAsynchronous USB, compliant with USB 2.0 Audio Class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Formats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePCM up to 384kHz, DSD up to 128x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 32 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDAC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLast-generation ESS Sabre DAC with jitter-elimination circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGalvanic Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBetween USB interface and conversion circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLow Phase Noise Clocks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePreserves low jitter performance in the “clean” supply domain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal-to-Noise Ratio (SNR)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110dB @ 1kHz, “A” weighted, 192kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Harmonic Distortion + Noise (THD+N)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.008% @ 1kHz, -3dBFS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Voltage (THD 1%)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Sensitivity: 0.5V\/150 ohm, 0.45V\/33 ohm, 0.4V\/10 ohm\u003cbr\u003eLow Sensitivity: 1.5V\/150 ohm, 1.2V\/33 ohm, 0.65V\/10 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-0.1dB @ 10Hz \/ -3dB @ 50kHz (Low Sensitivity, 33 ohm load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 kohm \/\/ 100 pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Sensitivity: 0.67V in \/ 0.33V out (10 ohm load)\u003cbr\u003eLow Sensitivity: 0.67V in \/ 1V out (33 ohm load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure Class A, ECC83\/12AX7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass A, 2 EL84 triode-connected valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 line RCA, 1 USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 parallel connected headphone outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeedback Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16dB\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\u003e\u0026lt; 0.2% @ 1kHz, 0.5V\u003cbr\u003e\u0026lt;0.8% up to 1V (Low Sensitivity, 33 ohm load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.5 cm x 12.6 cm x 32.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Cherry","offer_id":40271920824416,"sku":"URSH","price":1999.0,"currency_code":"USD","in_stock":false},{"title":"Black","offer_id":40271920857184,"sku":"URSH-BLK","price":1999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/SHheadphonecherry.jpg?v=1741604214"},{"product_id":"unison-research-unico-cd-uno-cd-player","title":"Unison Research Unico CD Uno CD Player","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research Unico CD Uno is a versatile and high-performance digital-to-analog converter (DAC) with an integrated CD player. Designed for those who appreciate high-quality audio, the CD Uno combines Unison Research’s renowned hybrid technology with modern digital capabilities, offering exceptional sound reproduction for both CD and digital audio sources. It features a variety of input options, ensuring compatibility with a wide range of audio equipment and playback formats.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHybrid Design:\u003c\/strong\u003e Combines a tube-based audio stage with solid-state components for refined sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Connectivity:\u003c\/strong\u003e USB, Bluetooth, coaxial, optical, and balanced digital inputs for seamless integration.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHigh-Resolution Playback:\u003c\/strong\u003e Supports up to 384kHz PCM and 11.2MHz DSD for detailed audio performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eUser-Friendly Display:\u003c\/strong\u003e White OLED display with adjustable settings for enhanced usability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eFlexible Digital Filters:\u003c\/strong\u003e Three selectable digital filters to tailor sound characteristics to personal preference.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDesign and Build Quality\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico CD Uno's design reflects a blend of classic and modern aesthetics, featuring a three-fold faceplate, white LEDs, and a sleek display. The build quality is robust, with a sturdy metal chassis that helps isolate the CD mechanism and electronics from external vibrations, ensuring precise and reliable operation. The slim drawer mechanism for CD loading adds to the unit's elegance and practicality.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eSound Performance\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt the heart of the CD Uno is its hybrid audio stage, utilizing a 12AU7\/\/ECC82 double triode tube operating in pure Class A, complemented by a solid-state buffer. This configuration provides a warm, detailed sound signature typical of tube amplification while maintaining the clarity and low distortion expected from modern solid-state devices. The ESS Sabre DAC ES9018K2M with jitter elimination further enhances sound quality, offering a high signal-to-noise ratio and low distortion, making every detail of your music stand out.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eConnectivity and Versatility\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe CD Uno is designed to accommodate a wide range of audio sources. It includes USB and Toslink inputs for connecting digital sources, as well as a built-in Bluetooth receiver for wireless streaming from smartphones, tablets, or computers. The CD Uno also offers coaxial and balanced AES\/EBU inputs, providing flexibility for integrating with various digital devices. With these options, the CD Uno can serve as a central hub for a modern hi-fi system, handling everything from CD playback to high-resolution digital audio files.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDigital and Analog Integration\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe CD Uno features a dedicated DAC board with eight stabilized power supply rails to maintain clean and accurate audio signal processing. An FPGA processor allows for faster handling of digital data, and users can choose between three different digital filters to optimize sound for specific recordings or personal preferences. The ability to bypass the tube stage and use a solid-state output further enhances its versatility, offering different sonic signatures to suit various listening tastes.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eThe Listening Room Experience\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt The Listening Room, we take pride in offering more than just high-fidelity audio equipment. We provide expert advice, personalized service, and a commitment to helping you find the perfect sound system for your space. From delivery to custom setup, our goal is to ensure that every piece of equipment you purchase performs at its absolute best in your environment. Trust us to be your partners in the pursuit of exceptional sound.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eGeneral\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValvole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x ECC82\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB 2.0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1 – 384 kHz , DSD128, DSD256 Ready Res: 16 to 32 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eToslink™\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1 – 96 Res.: 16 to 24 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBluetooth™ 3.0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1, 48kHz Res: 16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDigital Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS\/PDIF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x, 0.5Vpp on 75 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePerformance \u0026amp; Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransport\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCD-Loader\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite graphic OLED 128 X 64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDAC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESS Sabre ES9018K2M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSNR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125dB (0dBFS, 1kHz, 192kHz, “A” weighted )\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0003% (0dBFS, 1kHZ, 20Hz-20kHZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/V Converter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNE5532AD very low noise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Filters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFLT 1: Fast Roll-Off, linear Phase\u003cbr\u003eFLT 2: Fast Roll-Off, minimum Phase\u003cbr\u003eFLT 3: Slow Roll-Off, linear Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolid state Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAbsolute Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003ePhysical\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\u003e45cm x 38cm x H 13cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10Kg \/ 22lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":40302712586336,"sku":"URUCDUNO","price":3999.0,"currency_code":"USD","in_stock":false},{"title":"Black - Special Order","offer_id":40302712619104,"sku":"URUCDUNO-BLK","price":3999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/CD_UNO_SILVER.jpg?v=1741603845"},{"product_id":"unison-research-simply-italy-stereo-integrated-amplifier","title":"Unison Research Simply Italy Stereo Integrated Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBuilding on the legacy of the highly acclaimed Simply Two, the Unison Research Simply Italy is a modern take on a classic design, combining the rich, warm sound of valve amplification with updated aesthetics and advanced engineering. With its roots in the iconic Simply Two, Simply Italy offers a new level of audio performance while maintaining the musicality and reliability that made its predecessor a favorite among audiophiles and critics alike.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e12W Per Channel Output:\u003c\/strong\u003e Pure Class-A, single-ended ultralinear configuration for rich, dynamic sound.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSelectable Negative Feedback:\u003c\/strong\u003e Choose between 5 dB or 1.8 dB for optimal speaker and room matching.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eCustom Output Transformers: \u003c\/strong\u003eDeveloped in-house to ensure EL34 tubes operate with triode-like qualities.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eRefined Design:\u003c\/strong\u003e Modern aesthetic with wood accents and satin stainless-steel bands for both style and function.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eAdvanced Power Supply:\u003c\/strong\u003e Quasi-Dual-Mono design reduces crosstalk and distortion for a purer signal.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eRemote Control Included:\u003c\/strong\u003e Infrared remote with ALPS motorized potentiometer for precise volume control.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eA Modern Classic: The Evolution of Simply Two\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Simply Italy amplifier draws inspiration from the iconic Simply Two, one of the world’s most successful integrated valve amplifiers. While retaining the essence of the original, Simply Italy introduces several enhancements that elevate its performance and usability. With a power output of 12 watts per channel, this amplifier is designed to deliver exceptional sound quality across a wide range of speakers, thanks to its 6-ohm output impedance, making it suitable for both 4-ohm and 8-ohm loudspeakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eEngineering Excellence: Inside the Simply Italy\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research has applied its extensive experience in valve amplifier design to the Simply Italy, ensuring that each component works harmoniously to produce the best possible sound. The amplifier stages are entirely valve-based, featuring a pair of EL34 tubes in a single-ended ultralinear configuration. This design, supported by Unison Research's proprietary output transformers, allows the pentode tubes to operate with triode-like characteristics, providing a sound that is both warm and detailed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe preamp and driver stages are powered by ECC82 twin triodes, known for their excellent linearity and minimal harmonic distortion. The input stage uses an ionic bias system, eliminating global and local feedback and ensuring minimal phase rotation, which contributes to the amplifier’s clear and natural sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAttention to Detail: Design and Construction\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Simply Italy is as visually striking as it is sonically impressive. The updated design includes wood detailing on the front panel, complemented by circular wood inserts around the controls, adding a touch of elegance to the modern aesthetic. Two satin stainless-steel bands beneath the valves not only enhance the visual appeal but also provide thermal isolation for the electronic circuits and output transformers, improving reliability and sound quality.\u003cbr\u003e\u003cbr\u003eThe amplifier’s internal construction is equally meticulous. The Quasi-Dual-Mono power supply design, which separates the preamp stages, reduces crosstalk and distortion, resulting in a purer signal path. The use of carefully selected components, including anti-inductive resistors, pure ceramic valve sockets, and vetronite printed circuit boards ensures long-term reliability and exceptional performance.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYour listening space is unique, and so are your needs. That's why we take the time to understand your preferences, your room acoustics, and your sonic dreams. We'll guide you through our range of hi-fi options, ensuring you find the perfect match for your space and budget. We believe in personal connections, exceptional service, and expert advice because when it comes to sound, there's no one-size-fits-all solution. Contact us to learn more.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStereo Integrated Valve Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-ended, ultralinear, Class-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 12 watts per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 kOhm \/ 50 pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNegative Feedback\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 dB or 1.8 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Complement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x ECC82 (12AU7), 2 x EL34 (6CA7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuses\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT2A (100V to 130V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e26 cm x 35 cm x 19 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Cherry","offer_id":40271950413920,"sku":"URSIMPLYITALY","price":3299.0,"currency_code":"USD","in_stock":false},{"title":"Black","offer_id":40271950446688,"sku":"URSIMPLYITALY-BLK","price":3299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/SIMPLY-cherry_-LUCE.jpg?v=1741604340"},{"product_id":"unison-research-unico-due-integrated-amplifier","title":"Unison Research Unico Due Integrated Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research Unico Due is a hybrid integrated amplifier that pairs an ECC83 valve preamplifier with a Dynamic Class A solid-state output stage, delivering 100 watts per channel into 8 ohms. Built in Italy, it folds in an ESS Sabre DAC and a moving-magnet phono stage, so one chassis covers digital, analog, and vinyl with the warmth of valves and the grip of transistors.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features of the Unison Research Unico Due\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHybrid valve and solid-state design:\u003c\/strong\u003e A single ECC83 double-triode per channel runs the Class A preamp stage, feeding a Dynamic Class A bipolar output stage that keeps valve character while driving real loudspeakers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003e100 watts per channel:\u003c\/strong\u003e 100+100W into 8 ohms, rising to 180+180W into 4 ohms, backed by 80,000uF of filter capacitance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eBuilt-in ESS Sabre DAC:\u003c\/strong\u003e A USB input feeds an ES9018K2M converter that handles PCM up to 384kHz\/32-bit and DSD256.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eMoving-magnet phono stage included:\u003c\/strong\u003e An MM phono board is fitted as standard and can be reconfigured for moving-coil cartridges.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eStandalone DAC and subwoofer outputs:\u003c\/strong\u003e A dedicated DAC line output and a volume-controlled subwoofer output open up extra system options.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eAV bypass input:\u003c\/strong\u003e One line input runs at fixed gain for clean integration into a home-theater system.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eMade in Italy:\u003c\/strong\u003e Hand-assembled by ARIA with selectable mains voltage and IR remote control.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eA Valve Preamp With Solid-State Muscle\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico Due's character starts at its input stage, where a single ECC83 (12AX7) double-triode per channel runs in Class A and handles voltage gain before the signal reaches the power section. That valve front end feeds a Dynamic Class A output stage built around bipolar power transistors in a double complementary pair, what Unison Research calls its Super-Symmetric configuration. The result is the tonal richness of a valve preamplifier with the load tolerance and speaker control of a solid-state output, so you get the warmth without the fuss of running a full valve amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-due-ecc83-mainboard.jpg?v=1780911688\" alt=\"Unison Research Unico Due mainboard showing the ECC83 valve and filter capacitors\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDynamic Class A Power Delivery\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eRated at 100 watts per channel into 8 ohms, the Unico Due nearly doubles to 180 watts into 4 ohms and reaches 290 watts into 2 ohms, so it stays composed into demanding loads. Dynamic Class A biasing lets the output stage hold Class A operation across normal listening levels and draw more current only when the music asks for it, which keeps the amplifier efficient without giving up the first-watt quality valve listeners care about. A large power supply with 80,000uF of filter capacitance and an encapsulated toroidal transformer sits behind all of it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-due-transformer.jpg?v=1780911691\" alt=\"Unison Research Unico Due encapsulated toroidal power transformer\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAn ESS Sabre DAC On Board\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eA USB input feeds the Unico Due's internal ES9018K2M, one of the well-regarded ESS Sabre converters, which handles PCM files up to 384kHz\/32-bit and DSD256. That makes the Due a complete digital source for a computer or streamer without a separate outboard DAC. A dedicated DAC line output sits alongside it, so the converter can also feed another component or a headphone amplifier independently of the preamp.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003ePhono Stage for Vinyl, MM or MC\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico Due ships with a moving-magnet phono board already fitted, set to 47kOhm \/ 220pF with 40dB of gain, and a service engineer can reconfigure it for moving-coil cartridges at 100Ohm \/ 440pF and 50dB. A selectable +10dB lift adds headroom for lower-output cartridges. RIAA equalization is active at low frequencies and passive at high frequencies, an approach that keeps the top end clean. Turntable owners get a genuine onboard phono stage rather than an afterthought.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eConnections and Everyday Control\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe rear panel carries three line-level RCA inputs, one of which can run as a fixed-gain AV bypass for a home-theater processor, plus tape and phono inputs and the USB digital input. Outputs include a tape loop, a volume-controlled subwoofer output for adding a sub or running a 2.1 system, and the independent DAC output. An IR remote controls volume and source, the front display dims or switches off, and a selectable mains transformer means US units arrive set for 120V operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-due-rear-panel.jpg?v=1780911697\" alt=\"Unison Research Unico Due rear panel with RCA inputs, speaker terminals, and voltage selector\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eBuilt in Italy\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research builds the Unico Due in Italy through its ARIA workshop, and the internal layout shows it: a central heatsink tunnel, a bank of red reservoir capacitors, and a tidy mainboard with the valves mounted clear of the power supply. The encapsulated transformer and generous filtering reflect a power supply designed for the amplifier's current demands rather than a budget afterthought.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-due-internal-layout.jpg?v=1780911694\" alt=\"Top-down view of the Unison Research Unico Due internal layout\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research is an Italian manufacturer known for valve and hybrid amplifiers that put music first. The Unico line is its hybrid family, combining valve preamplification with solid-state output stages to make the valve sound practical for everyday systems and a wide range of loudspeakers. Each Unico model is built in Italy.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eExplore the Unison Research Unico Line\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico Due sits in the upper half of Unison Research's Unico hybrid integrated range. For a more compact starting point, the \u003ca href=\"\/products\/unison-research-unico-primo-integrated-amplifier\"\u003eUnico Primo\u003c\/a\u003e is the line's entry and the \u003ca href=\"\/products\/unison-research-unico-nuovo-integrated-amplifier\"\u003eUnico Nuovo\u003c\/a\u003e steps up in power and chassis size. Above the Due, the \u003ca href=\"\/products\/unison-research-unico-90-stereo-tube-hybrid-integrated-amplifier\"\u003eUnico 90\u003c\/a\u003e is a purist line-level design, and the flagship \u003ca href=\"\/products\/unison-research-unico-150-integrated-amplifier\"\u003eUnico 150\u003c\/a\u003e delivers 150 watts per channel for demanding speakers and larger rooms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eThe Listening Room Difference\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eUnison Research Unico Due Specifications\u003c\/span\u003e\u003c\/h5\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:34%;background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutput power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width:66%;padding:12px;\"\u003e100+100W into 8Ω, 180+180W into 4Ω, 290+290W into 2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eInput stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eClass A, 1 x ECC83 (12AX7) double-triode per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutput stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eDynamic Class A bipolar double complementary pair (Super-Symmetric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eFilter capacitance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e80,000uF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOnboard DAC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eESS Sabre ES9018K2M, USB input, up to 384kHz\/32-bit PCM and DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003ePhono stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eMM standard (47kOhm \/ 220pF, 40dB); reconfigurable for MC (100Ohm \/ 440pF, 50dB); +0\/+10dB gain selection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eAnalog inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e3 line RCA (one programmable AV bypass), 1 tape, 1 phono MM\/MC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eDigital input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e1 USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e1 tape RCA, 1 volume-controlled subwoofer RCA, 1 DAC line out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eRemote\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eIR, volume and source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eMains\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eSelectable voltage; US units set for 120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eDimensions (W x D x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e43.5 x 43 x 13 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eFinishes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eSilver, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":40302713503840,"sku":"URUDUE","price":3999.0,"currency_code":"USD","in_stock":false},{"title":"Black - Special Order","offer_id":40302713536608,"sku":"URUDUEBLK","price":3999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/UNICODue_BIANCO.jpg?v=1741604773"},{"product_id":"unison-research-preludio-tube-integrated-amplifier","title":"Unison Research Preludio Tube Integrated Amplifier","description":"\u003ch5 dir=\"ltr\"\u003eUnison Research Preludio Tube Integrated Amplifier\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research Preludio combines Italian craftsmanship with the brand’s renowned audio expertise. This integrated tube amplifier offers the high-quality sound and design that Unison Research is known for.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003ePure Class A Design:\u003c\/strong\u003e Provides the warmth and dynamics of a much more powerful amplifier.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003e6550 Output Tubes:\u003c\/strong\u003e Engineered for long-lasting performance with minimal warm-up time.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eECC82 Double Triode Valve:\u003c\/strong\u003e Ensures rich, natural sound reproduction.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eMagnetic Stainless Steel Top Plate:\u003c\/strong\u003e Reduces heat interference for consistent performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eFull Remote Control:\u003c\/strong\u003e Combines modern convenience with classic tube amplifier design.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eElegant Finish:\u003c\/strong\u003e Available in Cherry, with brushed aluminum accents.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDesign and Build\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Preludio features a thoughtful design that prioritizes both aesthetics and functionality. The top plate, made from magnetic stainless steel, is designed to minimize heat conduction, ensuring that the internal circuitry remains unaffected by the heat generated by the 6550 tubes. This attention to detail extends to every component, from the circuit boards to the control knobs, resulting in an amplifier that is as reliable as it is beautiful.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003ePerformance\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThough rated at 14 watts per channel, the Preludio’s Pure Class A design allows it to perform like a 40-50 watt solid-state amplifier, driving most speakers with ease. It excels in delivering a natural and dynamic sound, making it ideal for acoustic music, jazz, and blues. The amplifier’s ECC82 valves in the input stage and 6550 output valves ensure a warm and detailed audio experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eVersatility\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Preludio is equipped with four line-stage inputs, a tape input, and an output, offering flexibility in various setups. The inclusion of full remote control functionality enhances usability, making it easy to integrate into your existing system. While it may not suit those seeking a powerhouse amplifier for high-volume rock or classical music, it shines in more intimate listening environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eSpeaker Compatibility\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWith any valve amplifier, speaker choice is crucial. The Preludio pairs well with speakers that have a sensitivity of 90dB or higher and an impedance that doesn’t drop below 4 ohms. For those unsure about speaker compatibility, our team at The Listening Room is available to offer expert advice.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDesign Aesthetics\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Preludio’s design reflects its Italian origins, with an elegant finish available in Cherry. The combination of wood and brushed aluminum details adds a touch of sophistication to any listening room. Positioned in the middle of Unison Research’s range, the Preludio offers significant benefits over entry-level models like the Simply Italy, while still remaining accessible.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eThe Listening Room Experience\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt The Listening Room, we take pride in offering more than just high-fidelity audio equipment. We provide expert advice, personalized service, and a commitment to helping you find the perfect sound system for your space. From delivery to custom setup, our goal is to ensure that every piece of equipment you purchase performs at its absolute best in your environment. Trust us to be your partners in the pursuit of exceptional sound.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eSpecifications\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStereo Integrated Valve Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esingle ended ultralinear A class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14W \/ channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 line, 1 tape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 tape, 1 subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeedback factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10dB\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 – 85kHz ( -1dB@ 7 W )\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValves\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x 6550\/KT88, 2 x ECC82\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e37.5 cm x 40 cm x H 18 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18kg, 40 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":40271278997600,"sku":"URPRELUDIO","price":4299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/Preludio-1.jpg?v=1741604045"},{"product_id":"unison-research-triode-25-tube-integrated-amplifier","title":"Unison Research Triode 25 Tube Integrated Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIn celebration of Unison Research's 25th anniversary, the Triode 25 Tube Integrated Amplifier was created as a tribute to the brand's rich history of innovation and quality. Building upon the legacy of the Triode 20, this amplifier is a harmonious blend of traditional tube sound and modern features. With the ability to switch between triode and pentode modes, along with a user-friendly bias adjustment, the Triode 25 is a versatile and powerful centerpiece for any high-fidelity audio system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eKey Features\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cstrong\u003eDual Mode Operation: \u003c\/strong\u003eEasily toggle between triode and pentode modes to suit different music genres and listening preferences.\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003ePush-Pull Configuration: \u003c\/strong\u003eUtilizes EL34 tubes in a push-pull setup for enhanced efficiency and minimized distortion.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eAdvanced Transformer Design: \u003c\/strong\u003eSymmetrical output transformer ensures linear signal reproduction with reduced harmonic distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eModern Connectivity:\u003c\/strong\u003e Includes a 32-bit\/384kHz and DSD 128 compliant USB input for high-resolution digital audio sources.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eUser-Friendly Interface:\u003c\/strong\u003e Simple bias adjustment system for maintaining optimal tube performance.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eTimeless Design\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Triode 25 is built with attention to detail, ensuring reliable performance. The push-pull circuit, driven by EL34 tubes, is designed to minimize distortion and deliver clear sound. The symmetrical output transformer is a crucial component, contributing to the amplifier’s consistent performance and durability. The solid construction also helps in reducing heat, thereby extending the life of the tubes.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eBuild Quality\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIn triode mode, the Triode 25 delivers a detailed, smooth sound, ideal for more intimate music. Pentode mode offers more than 45 watts per channel (6Ω load), providing the power and dynamics needed for a broader range of music. This dual-mode feature allows the Triode 25 to handle different musical styles and listening environments effectively.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eBalanced Performance\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWith dual operating modes and a USB input, the Triode 25 caters to both analog and digital audiophiles. The USB input supports 32-bit\/384kHz and DSD 128, making it compatible with the latest high-resolution audio formats. This makes the Triode 25 a versatile choice for modern audio systems.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eVersatility\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Triode 25 stands out for its versatility, featuring dual operating modes and modern digital connectivity. The inclusion of a USB input makes this amplifier particularly appealing to digital audiophiles who use their computer as a primary audio source. The USB input, compliant with 32-bit\/384kHz and DSD 128 standards, ensures compatibility with the latest high-resolution audio formats.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDesigned to integrate with a variety of audio systems, the Triode 25’s push-pull configuration and dual-mode operation make it adaptable to different speaker types. Whether paired with high-efficiency speakers or more demanding configurations, the Triode 25 delivers the power and clarity needed for an exceptional listening experience.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eThe Listening Room Experience\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt The Listening Room, we take pride in offering more than just high-fidelity audio equipment. We provide expert advice, personalized service, and a commitment to helping you find the perfect sound system for your space. From delivery to custom setup, our goal is to ensure that every piece of equipment you purchase performs at its absolute best in your environment. Trust us to be your partners in the pursuit of exceptional sound.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePush-pull, ultralinear, Class-AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 45 watt per channel in Ultralinear (Pentode) configuration\u003cbr\u003eApprox. 25 watt per channel Triode configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Linea ( 1 Tape ) , 1 USB DAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 kOhm \/ 50 pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Tape out, 1 Sub Out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNegative feedback\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 dB or 1.8 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve complement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x ECC83, 1 x ECC82, 4 x EL34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 watt max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.8 in x 17.7 in x 7.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44 lbs (20 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Cherry","offer_id":40271955361888,"sku":"URT25","price":4999.0,"currency_code":"USD","in_stock":false},{"title":"Black","offer_id":40271955394656,"sku":"URT25-BLK","price":3999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/TRIODE2525W_cherry.jpg?v=1744400292"},{"product_id":"unison-research-unico-cd-due-cd-player","title":"Unison Research Unico CD Due CD Player","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research Unico CD Due is a high-end digital-to-analog converter (DAC) with an integrated CD player, blending classic analog sound with modern digital capabilities. Designed for both CD playback and high-resolution audio files from various sources, the CD Due offers flexibility and exceptional audio performance. Its solid build quality and extensive feature set make it an excellent choice for enhancing any high-fidelity audio system.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eKey Features\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eHybrid Tube Output Stage: \u003c\/strong\u003eUtilizes four ECC83 tubes for a rich, detailed sound.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eVersatile Digital Inputs: \u003c\/strong\u003eUSB, Bluetooth, S\/PDIF, AES\/EBU, and Toslink inputs for easy connectivity.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eHigh-Resolution Playback: \u003c\/strong\u003eSupports up to 384kHz PCM and 11.2MHz DSD for top-notch audio quality.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eUser-Friendly Display:\u003c\/strong\u003e White OLED display with clear visibility and adjustable brightness.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eCustomizable Sound: \u003c\/strong\u003eThree digital filters to adjust sound characteristics to your preference.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eDesign and Build Quality\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico CD Due features a sleek design that complements the Unico 150 and Unico 90 amplifiers, with a distinctive three-fold faceplate, white LED indicators, and a clear OLED display. The display can be turned off for a distraction-free listening experience. Built with a metal chassis and a shielded CD mechanism, the CD Due is designed to reduce vibrations and ensure long-lasting durability.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eSound Performance\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe sound quality of the CD Due is defined by its hybrid tube output stage. Using four ECC83 tubes in a totem pole configuration, the unit combines the warm, engaging sound of tubes with the dynamic performance of solid-state technology. High-quality Wima and Mundorf capacitors further enhance clarity and reduce noise, providing a balanced, immersive listening experience suitable for various music genres.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eConnectivity and Versatility\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico CD Due is equipped with a wide range of digital inputs, including USB, coaxial S\/PDIF, balanced AES\/EBU, optical Toslink, and a built-in Bluetooth receiver for wireless streaming from smartphones, tablets, and computers. These inputs make it easy to connect the CDDue to nearly any digital audio source, from standard CDs to high-resolution digital files. The CDDue also offers both balanced and unbalanced analog outputs for flexible integration with different audio systems.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cspan\u003eAdvanced Digital Processing \u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe CD Due uses the ESS Sabre ES9018K2M DAC chip, known for its high signal-to-noise ratio of 128 dB and low distortion of 0.0003%. An FPGA processor enhances the responsiveness and functionality of the digital section, providing better handling of audio data. Users can choose from three digital filters to fine-tune the sound to their liking, whether they prefer enhanced temporal coherence, phase accuracy, or impulse response.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eThe Listening Room Experience \u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eAt The Listening Room, we take pride in offering more than just high-fidelity audio equipment. We provide expert advice, personalized service, and a commitment to helping you find the perfect sound system for your space. From delivery to custom setup, our goal is to ensure that every piece of equipment you purchase performs at its absolute best in your environment. Trust us to be your partners in the pursuit of exceptional sound.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB 2.0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1 – 384 kHz , DSD128, DSD256 Ready Res: 16 to 32 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS\/PDIF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5Vpp on 75 Ohms, 44.1 -192 kHz, DSD64 (DoP) Res: 16 to 24 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAES\/EBU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2Vpp on 110 Ohms, 44.1 -192 kHz, DSD64 (DoP) Res: 16 to 24 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eToslink™\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1 – 96 Res.: 16 to 24 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBluetooth™ 3.0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44.1, 48kHz Res: 16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDigital Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS\/PDIF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x, 0.5Vpp on 75 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAES\/EBU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x, 2Vpp on 110 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eToslink™\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransport\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCD-Loader\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e128 X 64 White OLED graphic display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDAC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESS Sabre ES9018K2M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSNR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e128dB (0dBFS, 1kHz, 192kHz, “A” weighted )\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0003% (0dBFS, 1kHZ, 20Hz-20kHZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/V Converter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAD8597\/AD8599 ultra low distortion and ultra low noise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eValve Output Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble Triode, pure class A differential Totem-pole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotem-poleValve Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 x ECC83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAudio Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x RCA, 2 x XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eFeatures \u0026amp; Physical\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Filters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFLT 1: Fast Roll-Off, linear Phase\u003cbr\u003eFLT 2: Fast Roll-Off, minimum Phase\u003cbr\u003eFLT 3: Slow Roll-Off, linear Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolid State Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAbsolute Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45cm x 38cm x H 13cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10Kg \/ 22 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":40302711930976,"sku":"URUCDDUE","price":5499.0,"currency_code":"USD","in_stock":false},{"title":"Black - Special Order","offer_id":40302711963744,"sku":"URUCDDUE-BLK","price":5499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/CD_DUE_SILVER.jpg?v=1741603463"},{"product_id":"unison-research-unico-90-stereo-tube-hybrid-integrated-amplifier","title":"Unison Research Unico 90 Stereo Tube Hybrid Integrated Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research Unico 90 is a dual-mono hybrid integrated amplifier that runs a pure Class A valve stage into a Hexfet output, delivering 100 watts per channel into 8 ohms with zero global feedback. Sitting just below the flagship Unico 150, it pairs valve musicality with the grip and reliability of MOSFET power in a purist, line-level design built in Italy.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features of the Unison Research Unico 90\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003ePure Class A valve stage:\u003c\/strong\u003e Six valves, two ECC83 and four ECC81 (three per channel), run the input and driver work in pure Class A before the output stage.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHexfet MOSFET output:\u003c\/strong\u003e A Class AB output stage with three complementary Hexfet pairs per channel delivers 100 watts into 8 ohms and 160 watts into 4 ohms.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eZero global feedback:\u003c\/strong\u003e The two-stage circuit uses local feedback only, with no global negative feedback, for a more open and immediate presentation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eDual-mono construction:\u003c\/strong\u003e Left and right channels are built as mirror images for low crosstalk and strong stereo separation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eBalanced and single-ended inputs:\u003c\/strong\u003e Six line inputs in total, including two transformer-coupled balanced XLR pairs and a fixed-gain bypass input.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eBuilt in Italy:\u003c\/strong\u003e Hand-assembled by ARIA with audiophile-grade capacitors, multi-voltage operation set for US 120V, and a remote control.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eA Pure Class A Valve Stage and Hexfet Output\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico 90 runs valves where they shape the sound and MOSFETs where they drive the speakers. Its input and driver work is handled in a single pure Class A stage built from an ECC83 double-triode totem pole with a parallel ECC81 totem pole, which amplifies the signal and drives the power stage directly. From there a Class AB Hexfet output stage with three complementary pairs per channel takes over. The result is the warmth and texture of valves with the control and reliability of solid-state power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-90-components-macro-ls.jpg?v=1780915234\" alt=\"Unison Research Unico 90 circuit board close-up with valve socket and audiophile capacitors\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003e100 Watts, Dual Mono, Zero Global Feedback\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eRated at 100 watts per channel into 8 ohms and 160 watts into 4 ohms, the Unico 90 is built as a dual-mono design, so each channel runs its own amplification for low crosstalk and strong stereo imaging. It applies no global negative feedback, using only local feedback within the two-stage circuit, an approach that many listeners feel keeps the music more open and alive. Output resistance stays below 0.4 ohms across the audio band, so the amplifier keeps firm control of the loudspeaker.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-90-dual-mono-layout-ls.jpg?v=1780915237\" alt=\"Unison Research Unico 90 dual-mono internal layout from above\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAudiophile-Grade Components\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eOpen the Unico 90 and the parts count tells the story: WIMA film capacitors through the signal path and Mundorf M-Cap polypropylene capacitors at key positions, mounted on a tidy dual-mono board. These are the kinds of components usually reserved for separates at higher prices, and they are a large part of why the amplifier sounds the way it does.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-90-mundorf-capacitors-ls.jpg?v=1780915240\" alt=\"Unison Research Unico 90 board with Mundorf M-Cap polypropylene capacitors\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eBalanced, Single-Ended, and Bypass Inputs\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eConnectivity runs to six line-level inputs: three unbalanced RCA, two transformer-coupled balanced XLR pairs, and one unbalanced bypass input. The bypass runs at fixed gain, so the Unico 90 can act as a power amplifier or drop into a home-theater system with the preamp section out of the path. Outputs include a tape loop and a volume-controlled subwoofer output, and each channel offers two pairs of binding posts for bi-wiring. There is no onboard phono stage, so vinyl listeners add an external phono preamplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/unico-90-rear-panel.jpg?v=1780914935\" alt=\"Unison Research Unico 90 rear panel with RCA and XLR inputs, bi-wire terminals, and voltage selector\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eBuilt in Italy\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research builds the Unico 90 in Italy through its ARIA workshop. At 20kg it is a serious piece of engineering, finished with a three-piece machined aluminum front panel in silver or black and a selectable mains transformer that ships set for US 120V operation. A remote control handles volume, and the soft-start circuit mutes the outputs briefly at power-on.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research is an Italian manufacturer known for valve and hybrid amplifiers that put music first. The Unico line is its hybrid family, combining valve preamplification with solid-state output stages to make the valve sound practical for everyday systems and a wide range of loudspeakers. Each Unico model is built in Italy.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eExplore the Unison Research Unico Line\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unico 90 sits near the top of Unison Research's Unico hybrid integrated range, just below the flagship. The \u003ca href=\"\/products\/unison-research-unico-primo-integrated-amplifier\"\u003eUnico Primo\u003c\/a\u003e is the entry point, with the \u003ca href=\"\/products\/unison-research-unico-nuovo-integrated-amplifier\"\u003eUnico Nuovo\u003c\/a\u003e stepping up from there. Above the 90, the \u003ca href=\"\/products\/unison-research-unico-150-integrated-amplifier\"\u003eUnico 150\u003c\/a\u003e uses a three-stage circuit for 150 watts per channel and the largest rooms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eThe Listening Room Difference\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eUnison Research Unico 90 Specifications\u003c\/span\u003e\u003c\/h5\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:34%;background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutput power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width:66%;padding:12px;\"\u003e100+100W into 8Ω, 160+160W into 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eValves\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e2 x ECC83, 4 x ECC81 (three per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eInput\/driver stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003ePure Class A, ECC83 totem pole with parallel ECC81 totem pole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutput stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eClass AB Hexfet, 3 complementary pairs per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eCircuit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eTwo-stage, zero global feedback (local feedback only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eTHD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e\u0026lt;0.15% @ 1kHz, 1W; \u0026lt;0.5% @ 1kHz, 10W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e21kOhm \/\/ 300pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eInput sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e860mV RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutput resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e\u0026lt;0.4Ω, resistive across the audio band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e6 line (3 unbalanced RCA, 2 balanced XLR, 1 unbalanced bypass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e1 tape, 1 volume-controlled subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eSpeaker terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e4 + 4, bi-wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003ePower consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e550W at maximum output into 8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eMains\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eSelectable voltage; US units set for 120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eDimensions (W x D x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e43.5 x 44 x 18 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003e20 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#f3f3f3;padding:12px;\"\u003e\u003cstrong\u003eFinishes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;\"\u003eSilver, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":40271964602464,"sku":"URU90","price":5999.0,"currency_code":"USD","in_stock":false},{"title":"Black - Special Order","offer_id":40271964635232,"sku":"URU90BLK","price":5999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/UNICO_90_SILVER-1.jpg?v=1741604698"},{"product_id":"unison-research-s6-stereo-integrated-tube-amplifier","title":"Unison Research S6 Stereo Integrated Tube Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research S6 is a well-regarded integrated amplifier that combines thoughtful design with the quality craftsmanship Unison Research is known for. Over the years, the S6 has been updated and refined to maintain its reputation as a reliable and high-performing amplifier. Its elegant design, featuring wooden inlays on the front panel, underscores the attention to detail that comes with the \"Made in Italy\" label.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eSingle-Ended Ultra-Parallel Configuration: \u003c\/strong\u003eCapable of driving most speakers, including those with low sensitivity.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eCustom Output Transformer: \u003c\/strong\u003eHandcrafted for linear frequency response and consistent sound quality.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003ePure Class A Operation:\u003c\/strong\u003e Delivers the warmth and detail typical of quality valve amplifiers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eGold-Plated Inputs and Outputs: \u003c\/strong\u003eEnsures lasting performance and reliable connections over time.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHandcrafted Wooden Components:\u003c\/strong\u003e Adds a touch of craftsmanship and elegance to the design.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHeat Management Design:\u003c\/strong\u003e Features an arc layout for power tubes and a stainless steel baseplate to manage heat effectively.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDesign and Build Quality\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe S6 is designed for both performance and reliability. It uses a Single-Ended Ultra-Parallel configuration with three EL34 pentodes per channel, coupled to two triode preamp stages. The custom-built output transformer is designed to provide a linear frequency response, ensuring a balanced and accurate sound. \u003c\/span\u003e\u003cspan\u003eThe power transformer is robust, delivering the energy needed to operate the amplifier under various conditions. The design minimizes the number of electronic components in the audio path, helping to maintain the purity of the sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAesthetic and Functional Design\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe S6’s design is both practical and visually appealing. The amplifier features handcrafted wooden components and precision-machined stainless steel rotary controls. The power tubes are arranged in an arc to facilitate heat dissipation, while a protective grille allows for proper ventilation without obstructing the view of the tubes.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eSound Performance\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research S6 is designed to deliver detailed, dynamic sound with the warmth that valve amplifiers are known for. The sound quality has been carefully calibrated through extensive listening tests, achieving a balance between detail, transparency, and warmth.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eVersatility and Connectivity\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWith five line-level inputs and one tape output, the S6 offers a range of connectivity options for different audio sources. It’s versatile enough to drive a wide variety of speakers, including those with lower sensitivity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eThe Listening Room Experience\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eYour listening space is unique, and so are your needs. That's why we take the time to understand your preferences, your room acoustics, and your sonic dreams. We'll guide you through our range of hi-fi options, ensuring you find the perfect match for your space and budget. We believe in personal connections, exceptional service, and expert advice because when it comes to sound, there's no one-size-fits-all solution. Contact us to learn more.\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStereo Integrated Valve Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-ended parallel, ultralinear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure Class A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30\/35 Watt\/channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 – 50,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 tape, loudspeakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e265VA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e35 cm x 21 cm x 49 cm (L x H x P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Cherry","offer_id":40271917056096,"sku":"URS6","price":5999.0,"currency_code":"USD","in_stock":false},{"title":"Black","offer_id":40271917088864,"sku":"URS6-BLK","price":5999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/S6cherry.jpg?v=1741604177"},{"product_id":"unison-research-sinfonia-stereo-tube-integrated-amplifier","title":"Unison Research Sinfonia Stereo Tube Integrated Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Unison Research Sinfonia Stereo Tube Amplifier merges classic tube technology with modern design to deliver a warm, detailed sound. This amplifier, part of Unison Research’s classic line, combines advanced engineering and high-quality materials, offering an authentic listening experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003ePure Class A Tube Amplification: \u003c\/strong\u003eFour KT88 tubes in a single-ended parallel ultra-linear configuration provide natural sound with minimal distortion.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eDual-Mono Design:\u003c\/strong\u003e Minimizes cross-channel interference, enhancing clarity and channel separation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eAdvanced Power Supply:\u003c\/strong\u003e High-voltage stabilized power supply with large heat sinks and a non-magnetic stainless steel top plate ensures consistent performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eAutomatic Bias Circuit:\u003c\/strong\u003e Adjusts for tube performance drift in real time, maintaining sound quality over the long term.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Connectivity:\u003c\/strong\u003e Six gold-plated RCA inputs, speaker terminals for 4Ω and 8Ω loudspeakers, and a low-impedance output for active subwoofer connection.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eAbout Unison Research\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUnison Research, founded in Italy, has a long-standing reputation for crafting high-fidelity audio equipment that marries traditional craftsmanship with cutting-edge technology. Each product reflects their passion for music and dedication to producing equipment that delivers both sonic excellence and visual beauty. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eDesign\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Sinfonia amplifier is part of Unison Research’s classic line, which also includes the Preludio and Performance models. Inspired by the acclaimed Performance amplifier, the Sinfonia combines elegance with functionality. The control knobs are crafted from solid, non-magnetic stainless steel, offering a smooth, precise feel. Wooden accents not only enhance the visual appeal but also serve to dampen resonance, reducing unwanted vibrations that can interfere with sound quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eBuild\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Sinfonia is constructed with durable, high-quality materials. The chassis, made from non-magnetic stainless steel, helps keep internal components cool. The large heat sinks, essential for the high-voltage stabilized power supply, contribute to the amplifier's reliability and stability. Each component, from resistors to valve bases, has been carefully selected to ensure long-lasting performance.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003ePerformance\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Sinfonia’s pure Class A amplification, driven by four KT88 tubes, delivers rich, warm sound with excellent linearity and minimal distortion. Its dual-mono design ensures each channel operates independently, reducing cross-channel interference and preserving sound integrity. The automatic bias circuit continuously adjusts the KT88 tubes to compensate for performance drift, ensuring consistent sound quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eVersatility\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDesigned for flexibility, the Sinfonia offers six gold-plated RCA inputs for connecting multiple audio sources. The amplifier’s advanced power supply provides a stable, high-quality output. Additionally, the Sinfonia includes a low-impedance output terminal for connecting an active subwoofer, making it adaptable to various audio setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003eThe Sinfonia's back panel is equipped with gold-plated speaker terminals compatible with 4Ω and 8Ω loudspeakers, ensuring broad compatibility. The low-impedance subwoofer output is directly linked to the pre-amplifier stage, offering reliable subwoofer performance without compromising overall sound quality.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\u003cspan\u003eThe Listening Room Experience\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp dir=\"ltr\"\u003eAt The Listening Room, we take pride in offering more than just high-fidelity audio equipment. We provide expert advice, personalized service, and a commitment to helping you find the perfect sound system for your space. From delivery to custom setup, our goal is to ensure that every piece of equipment you purchase performs at its absolute best in your environment. Trust us to be your partners in the pursuit of exceptional sound.\u003cb id=\"docs-internal-guid-3f2b8644-7fff-75e3-a0e5-a732b8f69e3a\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual mono Stereo Integrated Valve Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esingle ended parallel ultralinear A class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 line, 1 tape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 tape, 1 subwoofer, loudspeakers bi-wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 – 8 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeedback factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 – 30000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValves\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 x 6550\/KT88, 2 x ECC82, 2 x ECC83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIR inputs and volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44 x 42 x 21 cm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55 Ibs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":40271287386208,"sku":"URSINFONIA","price":8799.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/products\/Sinfonia-mahogany-1.jpg?v=1741604390"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/collections\/Sinfonia-mahogany-1.jpg?v=1791381896","url":"https:\/\/listenroom.com\/collections\/unison-research-discontinued.oembed","provider":"The Listening Room","version":"1.0","type":"link"}