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Audio Research SP6 Tube Preamp - Kevin O
http://kevin.kevino.org/tubes/sp6.shtml
Despite the drastic changes made to the system over the years, the modified SP6 line stage circuit continues to occupy its position in the system; faithfully reproducing analog signals from vinyl and open-reel, as well as digital sources …
Audio Research SP-6 High Definition Stereo Preamplifier ...
https://www.hifiengine.com/manual_library/audio-research/sp-6.shtml
These (the 6 and 8 series preamps) put Audio Research into a ton of audiophile homes. These are somewhat overly warm but detailed preamplifiers …
ARCDB
https://arcdb.ws/SP6/SP6.html
SP-6A: 500 ohms main output, 1000 ohm tape output. Recommended minimum load for maximum audio quality 50K ohms and 500pF maxumum capacitance. SP-6B: Less than 500 ohms main output, 1000 ohms tape output. Recommended minimum load for maximum audio quality, 50K ohms and 250 pF maximum capacitance. SP-6C: 1000 ohms main output and tape …
The Vintage Beat: Audio Research SP-6B, Harmon Kardon ...
https://jeffsplace.positive-feedback.com/the-vintage-beat-audio-research-sp-6b-harmon-kardon-citation-1-and-mcintosh-mx110-preamplifiers/
There's quite a few versions of the the Audio Research SP-6 series of preamplifiers: the SP-6, SP-6A, SP-6B, SP-6C, and SP-6E, and it is the Audio Research SP-6B like Ron's that some SP-6 aficionados consider to be the best sounding of the SP-6 series. We have been wondering if an SP-6C type circuit (as in the schematics above) could reach an even …
Audio Research SP-6B All Tube Preamp with Phono Stage ...
https://skyfiaudio.com/products/audio-research-sp-6b-all-tube-preamp-with-phono-stage-in-box
Audio Research SP-6B All Tube Preamp with Phono Stage - With Original – SkyFi Audio Audio Research SP-6B All Tube Preamp with Phono Stage - With Original Box $0 Fully tested and performing wonderfully, all analogue unit, with manual and BRAND NEW NOS GE American made tubes. These matched tubes are a rare find and are included in the preamp.
Is Audio Research SP-6 considered a good model?
https://forum.audiogon.com/discussions/is-audio-research-sp-6-considered-a-good-model
Is Audio Research SP-6 considered a good model? I'm trying to decide on how to replace my Plinius 9200 with separates. I have a 70's era SP-6 and I'm wondering if it's worth servicing and keeping, or are there other tube pre amps (Audio Research or otherwise) worth looking for used (1-2K range).
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