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Audio Research D-90 Vintage Stereo Tube Amplifier - Made ...

    https://skyfiaudio.com/products/audio-research-d-90-vintage-stereo-tube-amplifier-made-in-the-usa-80-glorious-watts
    Audio Research D-90 Vintage Stereo Tube Amplifier - Made in the USA - 80 Glorious Watts. $0. Warm, musical, and engaging vintage tube amplifier from the …

D90 Manual - Audio Research

    https://audioresearch.com/wp-content/uploads/2021/06/D90_Manual.pdf
    audio research high 3900 annapolis lane north / plymouth, minnesota 55447-5447 / phone: 763-577-9700 fax 763-577-0323 d-90 owneris manual schematics

Audio Research D-90B | Tube | Audiogon

    https://www.audiogon.com/listings/tube-audio-research-d-90b-2013-12-14-amplifiers-12590
    Back in 1980 I bought an Audio Research D-90. Little did I know it was the Rev C. I used that amp to drive Acoustat 2+2's in a medium size living room in my flat with great success paired with an SP-6C1 preamp.

Audio Research D-90B Tube Power Amplifier 1980's ...

    https://reverb.com/item/39241228-audio-research-d-90b-tube-power-amplifier-1980-s-silverface
    Audio Research D-90B Tube Power Amplifier 1980's SilverfaceFully tested and 100% functional. Overall this unit is in great condition showing minimal wear from use and handling. This has been serviced to function correctly. Some transistors have been replaced, but no caps have been replaced. The w...

Audio Research D-90b | Audiogon Bluebook

    https://bluebook.audiogon.com/brands/audio-research/products/audio-research-d-90b
    Audio Research D-90b pricing information. on Audiogon, the High-end Audio Community

Audio Research D-90 Stereo Valve Power Amplifier Manual ...

    https://www.hifiengine.com/manual_library/audio-research/d-90.shtml
    Manual Library / Audio Research. Audio Research D-90. Stereo Valve Power Amplifier (1980-82) add a review. Specifications. B; Power output: 80 watts per channel into 16Ω (stereo) Frequency response: 25Hz to 20kHz. Total harmonic distortion: 0.5%. Damping factor: 25. …

Audio Research D-90 - Audiogon Discussion Forum

    https://forum.audiogon.com/discussions/audio-research-d-90
    Audio Research D-90 Hi, I just bought a A.R.D-90 and there is a hum in the right channel.I reversed the inter-connects and still in the right side.I switched the 12ax7's for 12au7's and it got louder.Any ideas or insight?

ARCDB

    https://www.arcdb.ws/D90/D90.html
    D-90: 90 watts per channel minimum continuous (both channels operating) at 16 ohms from 25 Hz to 20 kHz with less than 1% total harmonic distortion. Typically below .01% at 1 watt. Approximate power available per channel at "clipping" (both CH. OP, 1kHz): 105 watts.

Audio Research D-90 | Tube | Darnestown, Maryland 20874 ...

    https://www.audiogon.com/listings/lisaehc6-audio-research-d-90-tube
    Audio Research D-90 for sale. Original true audiophile owner. Enjoyed sparingly in a clean laboratory-like listening room with other high-end gear. Pristine condition. Dust-free. Smoke-free. Pet-free.

Audio Research D-90 Vintage Tube Amplifier USA Made! 80 ...

    https://www.audiogon.com/listings/lis9c52f-audio-research-d-90-vintage-tube-amplifier-usa-made-80-glorious-watts-amplifiers
    Audio Research D-90 for sale. **Please click here to check out our newly launched SkyFi Audio website with additional items for sale**Warm, musical, and engaging vintage tube amplifier from the early 80s. Made to the highest qu...

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