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Tubeset for Audio Research PH7 Phono Preamplifier with ...
https://www.tubeampdoctor.com/en/tubeset-for-audio-research-ph7-phono-preamplifier-with-power-supply-upgrade-6l6/5881
Tubeset for Audio Research PH7 Phono Preamplifier with Power Supply Upgrade 6L6/5881 Tubeset includes: V1-V4: 2x RT-6922-MP:…
ARC PH7 upgrade - High-End Audio Discussion Forum
https://forum.audiogon.com/discussions/arc-ph7-upgrade
It is my opinion that the PH7 suffered from a flawed power regulation design, and the offer of a 5881 circuit from ARC was not so much an upgrade as it was a bug fix. I called Leonard at ARC to express this view. His reply to the assertion that the PH7 had a design flaw was to tell me the upgrade cost $250 plus shipping.
SoundStage! Vinyl Word - Audio Research PH7 Phono Stage ...
http://www.soundstagenetwork.com/vinyl/vinyl200612.htm
Features. "The $5995 USD PH7 improves upon Audio Research’s one-third-the-price PH5 by incorporating proprietary capacitors and the same circuit-board material used in the acclaimed Reference 3 line-stage preamp." "The PH7 adopts vacuum-tube regulation of the power supply, where it relies upon three Russian 6H30 triodes….
Audio Research PH7 Phono Preamplifier w/ Power Supply ...
https://www.audiogon.com/listings/phono-audio-research-ph7-phono-preamplifier-w-power-supply-upgrade-11356-2018-01-12-preamplifiers
The Music Room is Audiogon's #1 Rated Dealer of Pre-owned Audio Gear! Want to buy this item now at our lowest price? Click Here to buy Now Product: Audio Research PH7 Phono Preamplifier w/ Power Supply Upgrade Product SKU: 11356 Serial Number: 0840 Voltage: 120V Cosmetic Description: 8/10 Excellent condition with minimal visible cosmetic wear including …
ARCDB
https://www.arcdb.ws/PH7/PH7.html
With the much-lauded PH5 phono preamplifier, Audio Research set a new benchmark for phono performance and features at its modest price. Now, phono enthusiasts have a new and even higher performance option: the all-new PH7 stereo phono preamplifier.
The ARC PH7 Phono Stage - The Absolute Sound
https://www.theabsolutesound.com/articles/the-arc-ph7-phono-stage
The ARC PH7 Phono Stage. The venerable Audio Research Corporation has been on quite a roll of late. Its newest-generation amps (the Reference 210 and Reference 610T) and preamp (the Reference 3), designed as always by the legendary William Zane Johnson, are across-the-board lower in distortion and coloration, higher in bandwidth, energy, and ...
Stereo Design Audio Research PH7 Phono Stage (Classic ...
https://www.youtube.com/watch?v=7TfHRJwOuUs
Here is a picture tour of our demonstration Audio Research PH7 Vacuum Tube Phono Stage.http://www.stereodesign.comhttp://www.facebook.com/stereodesignhttp://...
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