Audio Research D 90b

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

https://reverb.com/item/39241228-audio-research-d-90b-tube-power-amplifier-1980-s-silverface#:~:text=Product%20Specs%20%20%20Listed%20%20%209,%20United%20States%20%203%20more%20rows%20

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D90B Manual - Audio Research

https://audioresearch.com/wp-content/uploads/2021/06/D90B_Manual.pdf

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

D-90B: 80 watts per cannel minimum continuous (both channels operating) at 16 ohms from 25 Hz to 20 kHz with less than 0.5% total harmonic distortion. Typically below .005% at 1 watt. Approximate actual power available per channel at "clipping" (both CH. OP, 1kHz): 90 watts: Power bandwidth (-3dB points) 12 Hz and 60kHz D-90B: (-3dB points)

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 with upgraded tubes made in England ...

https://www.audiogon.com/listings/lisac195-audio-research-d-90b-power-amplifier-upgraded-tubes-tube

Audio Research D-90b for sale. The D90b is the last and best of the D-90's and was most often paired with an SP-6 -series preamp, which featured built-in power switching for many D-series amps of that era. Hence the D-90's lack ... Audio Research D-90b for sale.

Audio Research D-90 - Audiogon Discussion Forum

https://forum.audiogon.com/discussions/audio-research-d-90

The D-90b Takes 8-5881's,1-6550's,1-12ax7,and 5-6922's The revised D-90 takes 8-5881's or 6l6's,1-6550,4-12ax7's,2-12at7's,2-6fq7's. This is the tube setup mine has. Also the print out i have from the web sight shows pic's of the D-90 and D90b.