Audio Research Ref 160M MkI Reference Monoblock Power Amplifier - Silver

Description: Audio Research Ref 160M MkI Mono Power Amplifier - PAIR Color: Silver These amplifiers are in excellent condition and function flawlessly. They are consecutive serial number amplifiers and they include their original packaging, user manual, tubes (1278 hours), 20a power cords, bias adjustment tool, and cover removal tool. These amplifiers are available with freight shipping available or for local pickup in Columbus, OH. Feel free to message me your shipping zip code for a freight quote. Do not miss the chance to own these amazing amplifiers at an incredible price.After two years in development, the new Reference 160M (REF160M) Monoblock Power Amplifier is built like no other, looks like no other, and sounds like no other amplifier that you have ever heard, but it is unmistakably Audio Research. It features a refined audio topology with fewer and better components in the signal-path than in previous designs, switchable Ultralinear/Triode operation, proprietary auto-bias, output tube monitoring and protection, an advanced power meter, and much more. This array of features has never been offered before in an Audio Research amplifier. The designers at Audio Research wanted to create a new style that would complement the look of the REF6 preamp while also featuring a transparent faceplate that allows a view of the glowing KT150 vacuum tubes. While this window allows you to see the output tubes, it also incorporates an innovative dual-layer construction with distinctively etched markings that create an integrated power meter. The power meter’s output-level markings illuminate via hidden LEDs, and the illumination brightness is adjustable. The REF160M includes a sculpted cover with an integrated fan to cool the heat generated by the four (4) KT150 output tubes and two (2) 6H30 driver tubes. Solid-state power regulation was chosen to provide increased efficiency, stability, and reliability. The power supply stage uses a newly developed High Energy Capacity Transformer and a hefty bulk storage-capacity network to provide extremely high current on demand for transient peaks and intense dynamics, as well as for prodigious bass depth and authority. It is understood that the best path is the shortest path. Audio Research engineers created a new audio circuit topology with the shortest signal path and the fewest components. Those components are not only the best available, many are custom made for Audio Research. Incorporating these quality components is a special 4-layer circuit board that lowers the noise floor to unprecedented levels, and a design which was previously reserved for use in our preamplifiers. The result is a new benchmark in musicality in every criterion of sound quality.The REF160M also features a proprietary auto-bias circuit that works with various tubes types, including 6550, KT88, and KT120, in addition to the supplied KT150 and works constantly to maintain precise bias of the output tubes, while also adjusting for tube wear. There is no need to check or adjust bias ever again.The new REF160M breaks new ground sonically, aesthetically and operationally, and will be available in Natural (Silver) or Black finishes.POWER OUTPUT140 watts continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 140 watts, below 0.04% at 1 watt. (Note that actual power output is dependent upon both line voltage and “condition” i.e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not critical)POWER BANDWIDTH(-3dB points) 5Hz to 70kHzFREQUENCY RESPONSE(-3dB points at 1 watt) 0.5Hz to 110 kHzINPUT SENSITIVITY2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms)INPUT IMPEDANCE300K ohms Balanced, 100K ohms Single EndedOUTPUT TAPS16 ohms, 8 ohms, 4 ohmsOUTPUT REGULATIONApproximately 0.6dB 16 ohm load to open circuitOVERALL NEGATIVE FEEDBACK14dBDAMPING FACTORApproximately 14DISTORTION-SLEW RATE13 volts/microsecondRISE TIME2.0 microsecondsHUM & NOISE-POWER SUPPLY ENERGY STORAGE-POWER REQUIREMENTS105-130VAC 60Hz (210-250VAC 50Hz) 400 watts at rated output, 700 watts maximum, 260 watts at “idle”, 1 watt of.TUBE COMPLEMENT(2 matched pair) KT150 power output, (2) 6H30 gain stageOTHEROutput polarity: Non-inverting. Balanced input pin 2+ (IEC-268).DIMENSIONSWidth 17 ¼" (43.8 cm). Height 10" (25.4 cm). Depth 18½" (47 cm). Handles extended 19 ¼" (48.9 cm).WEIGHT56 lbs. (25.5 kg) Net; 73 lbs. (33.2 kg) Shipping.Check out my other listings.Feel free to ask any questions.NOTE: These amplifiers are being offered with freight shipping available or for local pickup in Columbus, OH. They are being offered as is with no returns.

Price: 18995 USD

Location: Dublin, Ohio

End Time: 2024-10-14T15:31:34.000Z

Shipping Cost: N/A USD