Audio Research Sp 6

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 …

Audio Research SP6 Tube Preamp - Kevin O

http://kevin.kevino.org/tubes/sp6.shtml

Modified Audio Research SP6 Tube Preamp. In July, 2002 I picked up a 1978 Audio Research SP6 preamp. Here is a photo from the original Ebay ad where I found and bid on it. The unit was in very good condition but badly in need of repair. This …

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 …

Is Audio Research SP-6 considered a good model?

https://forum.audiogon.com/discussions/is-audio-research-sp-6-considered-a-good-model

The 6-A was better!! The 6-B was one of the best per-amps ARC made. This was right before the SP-10. After the 6-B ARC came out with the 6-C, 6-E and from then is went down to just good. The "white" sound came into the picture and the flesh and bones of the orchestra and musicians started to fade. The SP-8 is also a better model then the 6-C, 6-E.

Updates to the Audio Research SP 6 | Stereophile.com

https://www.stereophile.com/content/updates-audio-research-sp-6-1

Audio Research SP-6 Pre-Amp - YouTube

https://www.youtube.com/watch?v=Sa6ueX-xI4Y

ARCDB

https://arcdb.ws/SP6/SP6.html

SP-6A: Harmonic distortion: Less than .01% at 2V RMS output, 60K ohm load, 20Hz to 20kHz (Typically about .001% in the midband). Intermodulation distortion: Less than .002% at 2V RMS output, 60K ohm load, SMPTE method. SP-6B: Harmonic distortion: Less than .01% at 2V RMS output, 20Hz to 20kHz (Typically about .0005% in midband).

Audio Research Reference 6 line preamplifier | …

https://www.stereophile.com/content/audio-research-reference-6-line-preamplifier