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Review: Audio Research D-70 mkII ... - Audiogon Marketplace
https://forum.audiogon.com/discussions/review-audio-research-d-70-mkii-tube-amp
It should be noted that the D-70, D-115 and D-250 ARC amplifiers all have a mild turn off noise which is perfectly normal for these units. The mild turn off noise according to Audio Research is caused by a temporary DC offset and does no harm to the amplifier or speakers in any way. jfrech 1,816 posts 06-27-2010 5:38am This article just kills me.
Audio Research Amazingtube Amplifier D-70 D70 - amlifiprea
https://amlifiprea.com/d-70
audio research d-70 Is Similar To: 07204026 Audio Research Acoustic Preamplifier With Mm Phono (47.3% similar) Hum noise, magnetic phono input, less than 1uv equivalent input noise with 1 kohms riaa weighted.
D70II Manual
https://audioresearch.com/wp-content/uploads/2021/06/D70II_Manual.pdf
The D70 is a vacuum tube amplifier constructed to high comercial standards. It is also capable - within its power limits - of redefining the state-of-the-art of music reproduction. In order to achieve this, however, it is necessary that it be used synergistically …
ARCDB
https://www.arcdb.ws/D70/D70.html
D-70: 65 Watts per channel minimum continuous (both channels operating) at 16 ohms from 20Hz to 20kHz with less that 0.5% total harmonic distortion (typically below .005% at 1 watt). Approximate actual power available per channel at "clipping" (both CH. OP, 1kHz): 70 Watts.
Audio Research D70 restoration advise. | Steve Hoffman ...
https://www.forums.stevehoffman.tv/threads/audio-research-d70-restoration-advise.464167/
The D-70 is a classic and is a great amp. Replace the old electrolytics, and just leave it stock otherwise. If you want to experiment with different flavors, then try rolling some tubes. You'll probably ruin it if you do much more than that. TarnishedEars, Sep 16, 2015 #6 dividebytube Forum Resident Location: Grand Rapids, MI
Audio Research D70MKII D70 MKII For Sale - Canuck Audio Mart
https://www.canuckaudiomart.com/details/171357-audio_research_d70mkii__d70_mkii/
The D70 MKII amplifier is from the early 1980's and was the last 70 watts/channel amp with full tube operation. Being the MKII version it is the best they made in that era. It is highly musical with solid bass, airy highs and sweet mid range. It …
Audio Research Stereo Tube Amplifier / D-70 MKii ...
https://www.ebay.com/itm/Audio-Research-Stereo-Tube-Amplifier-D-70-MKii-14529017-KT-/362934455606
Serial #: 14529017. Model: D70 MKii. Audio Research. Make: Audio Research. Tube Lineup 1X 6L6 (Tung-Sol / has broken key).
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