Arc Audio Guitar/Bass Twin-Tube Preamp

Car Audio, Motorcycle & Powersports Audio, ARC Audio

https://www.arcaudio.com/

ARC Audio manufactures high end car audio, marine audio, motorcycle audio and powersports audio products. Including amplifiers, speakers, subwoofers, and …

Audio Research SP-11 preamplifier – Old School | TONEAudio ...

https://www.tonepublications.com/old-school/audio-research-sp-11-preamplifier/

Audio Research SP-11 preamplifier. Residing at the top of the heap for at least three decades, Audio Research Corporation preamplifiers are almost default purchases for certain types of tube lovers. ARC preamps are adventurous in their technology yet conservative in execution, so they appeal to audiophiles who like to minimize risks.

ARC Preamps | Stereophile.com

https://www.stereophile.com/content/arc-preamps-1

Tube maintenance for Audio research sp-16 pre-amp

https://forum.audiogon.com/discussions/tube-maintenance-for-audio-research-sp-16-pre-amp

This discussion. Message User. 4,325 posts. 09-10-2010 1:35pm. Edit. Delete. Although you didn't make it clear I'm going to assume that the problem only arose in one channel (when it arose). If it occurred in both channels each time this solution wouldn't apply. I think - you've got a bummer tube, or two.

Audio Research LS16 Preamplifiers user reviews : 4.9 out ...

http://www.audioreview.com/product/amplification/preamplifiers/audio-research/ls16.html

The Audio Research LS16 is an outstanding preamp at a list price of $3000 U.S. It's fairly neutral without being boring or analytical with outstanding soundstage. It's a keeper! Similar Products Used: CJ PV-14L tube preamp, CJ PV-12 tube preamp, Adcom GFP-750, Classe CP-35.

Tube Preamp Reviews | Stereophile.com

https://www.stereophile.com/category/tube-preamp-reviews