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Audio Design Model 20A Power Amplifier

    https://worldradiohistory.com/hd2/IDX-Audio/Stereophile-IDX/IDX/80s/Stereophile-Vol-6-No-6-IDX-19.pdf
    Audio Design Model 20A Power Amplifier Solid-state stereo amplifier. Rated power: 100 watts/channel into 8 ohms or 185 watts into 4 ohms, both channels driven. Max output current: 20 amperes. Power bandwidth (-3 dB) and frequency response (+/-0.5 dB): 10 to 50k Hz. Rise time: 1.5 usec. Sensitivity: 1.25 V in for rated output.

Audio Design 20A info needed. - Amplifiers/Preamplifiers ...

    https://www.canuckaudiomart.com/forum/viewtopic.php?t=17334
    I am the original designer of the Audio Design line of amps and pre-amps from 1975 to 1985. I regret that I never hung onto a Model 20A power amp or Model One pre-amp after the company was wound up.

Audio Design 20A info needed. - Amplifiers/Preamplifiers ...

    https://www.canuckaudiomart.com/forum/viewtopic.php?t=17334&start=75
    I am the original designer of the Audio Design line of amps and pre-amps from 1975 to 1985. I regret that I never hung onto a Model 20A power amp or Model One pre-amp after the company was wound up. If anyone has either of these models and would be willing to part with them, I would be very appreciative to hear from you and would make a ...

Audio Design 20A power amp - TENTATIVELY SOLD - ON HOLD ...

    https://www.canuckaudiomart.com/details/649811735-audio-design-20a-power-amplifier/
    Audio Design amplifiers are known to have very good sound quality that is tube like with solid state bass. The 20A power amplifier is rated 100 watts per channel into 8 ohms, 180 watts per channel into 4 ohms, and 350 watts per channel into 2 ohms. This unit has was checked by Dan Santoni several years ago and he found it to be operating properly.

AUDIO DESIGN MODEL 20A POWER AMP * X-RARE, SPECIAL …

    https://orleans.canadianlisted.com/audio-and-video/audio-design-model-20a-power-amp-x-rare-special-design_4378601.html
    AUDIO DESIGN MODEL 20A POWER AMP * X-RARE, SPECIAL DESIGN * in Orleans, Ontario for sale. All transistors are original matched Motorola 2N3773, batch 8339. Bryston SST amps use nearly identical circuit. Old Bedini amps used similar circuit. All 3 designs use NO CAPACITORS in signal path, to completely eliminate phase and a few other types of distortion; it's expensive to …

Audio Design amps – Newly discovered treasure | Audiokarma ...

    https://audiokarma.org/forums/index.php?threads/audio-design-amps-%E2%80%93-newly-discovered-treasure.111735/
    I just bought an Audio Design Model One preamp, and a matching Model 20A Power amp circa 1981; both in great condition and complete with Operating/Service manuals and boxes. The design is simple, the build quality appears excellent and there are some unusual design features.

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