Audio Research Reference 160M MkII Monoblock Power Amplifier; pair

In the pursuit of ultimate musical realism, there can be no compromise. The Audio Research Reference 160M MkII is the definitive statement in power amplification, a component engineered to be a completely transparent window to the original performance. As a true monoblock, it dedicates an entire chassis to a single channel, achieving a level of purity, power, and soundstage stability that is simply unattainable in a stereo design. The MkII elevates this legendary platform to a breathtaking new level, incorporating the most advanced component technologies and wiring from Audio Research’s flagship series. With its radical transparent faceplate revealing the glow of its KT150 tubes, the REF 160M MkII is a visual and sonic masterpiece, delivering boundless, effortless power that connects you directly to the soul of the recording.

Key Features

• True Monoblock Design: A pair of individual mono amplifiers for the ultimate in channel separation, stereo imaging, and the elimination of inter-channel crosstalk.
• Flagship MkII Upgrades: Incorporates new proprietary gold coupling caps, specialized wiring, and upgraded power supply components for a dramatic leap in resolution and transparency.
• Radical Transparent Faceplate: A stunning etched acrylic front panel offers a captivating, unobstructed view of the glowing KT150 vacuum tubes.
• Dual GhostMeters®: Unique, floating power meters are etched into the transparent faceplate, appearing to hover in front of the tubes and providing a beautiful view of the power output.
• Pure All-Tube Signal Path: A meticulously designed circuit featuring a matched quad of KT150 output tubes and two 6H30 driver tubes per chassis.
• Potent 140 Watts Per Channel: A massive power output capable of driving even the most demanding loudspeakers with absolute authority and grace.
• Proprietary Auto-Bias Circuit: A smart, self-adjusting bias circuit constantly monitors and corrects for tube wear, ensuring peak performance and eliminating the need for manual adjustments.
• Switchable Triode-Pentode Modes: A top-panel switch allows you to choose between the full power of Pentode mode (140W) or the rich, nuanced presentation of Triode mode (70W).
• Massive Power Supply: An enormous power supply with substantial energy storage delivers instantaneous current for breathtaking dynamics.
• Selectable Fan Speeds: A quiet, three-speed fan system allows you to tailor the cooling to your environment and listening levels.
• Single-Ended and Balanced Inputs: Features both single-ended (RCA) and balanced (XLR) inputs for universal preamplifier compatibility.
• Separate 4, 8, and 16-Ohm Taps: Dedicated speaker output taps ensure a perfect impedance match for any loudspeaker.

The Purity of the Monoblock

The ultimate goal of high-end audio is to create a believable, three-dimensional soundstage. The REF 160M MkII achieves this through the uncompromising purity of its monoblock design. By housing the left and right channels in completely separate chassis with their own massive power supplies, all possibility of inter-channel crosstalk is eliminated. This perfect separation results in a soundstage of breathtaking width, depth, and stability. Instruments and vocalists hang in space with pinpoint accuracy, allowing you to hear into the recording with a clarity and focus that no stereo amplifier can match.

The Power of "Mark II"

The "MkII" designation signifies a profound evolution, infusing the Reference 160M with the very DNA of Audio Research's most advanced research. The most critical signal paths now feature new, custom-designed, proprietary gold coupling capacitors and special wiring. The power supply has also been upgraded with higher-performance components. This is not a subtle tweak; it is a fundamental upgrade that results in a startling increase in resolution, a more palpable and three-dimensional soundstage, and a sense of effortless dynamic swing.

A Window Into the Music

The Reference 160M MkII is an amplifier that engages the senses even before a note is played. Its revolutionary transparent faceplate removes the barrier between the listener and the technology, revealing the warm, inviting glow of the four KT150 output tubes. Etched directly onto this clear panel are the new GhostMeters®, which create a beautiful illusion of floating power meters, their needles dancing in front of the tubes. This stunning design is more than just an aesthetic choice; it’s a statement about the transparency and purity of the sound within.

Intelligent, Effortless Performance

The Reference 160M MkII is designed for the music lover who wants ultimate performance without the hassle of constant adjustments. At its core is a proprietary auto-bias circuit that is a marvel of engineering. This intelligent system constantly monitors the KT150 output tubes, automatically and precisely adjusting their bias in real-time to compensate for tube wear and fluctuations in your home's power line. This ensures that the amplifier is always operating at its absolute peak performance, day in and day out, without you ever having to touch a multimeter or a screwdriver.

The Listening Room Difference

When you shop with The Listening Room, you get more than just gear. As a third-generation, family-run business with a passion for music and decades of experience, we offer personalized service that goes far beyond the sale. Call, text, or email, and you’ll get a real human who knows this equipment inside and out. From in-store demos to curated home system design and wide-radius delivery, we’re here to help you get the absolute best out of your purchase.

Specifications