Audio Research LS2 mkII - Classic Tube Hybrid Preamplifier



jlwoodley's reviews

 by jlwoodley posted on Dec 13, 2020 19:44

audio research ls2 mkii classic tube hybrid preamplifier
This is an Audio Research LS2 mkII preamp with a black faceplate and knobs. The mark II version of the LS2 includes a continuous volume control, better coupling capacitors, and considerably more sophisticated and well-engineerd circuitry over the original LS2. This hybrid preamplifier is very responsive to tube rolling - it takes very little effort to hear differences from tube to tube. This preamp is sensitive to cable and peripheral equipment changes as well. If you like to tweak, tube roll or swap cables, then this preamp is for you! Once you find the combo you like, you can enjoy a very luxurious, wide, three-dimensional soundstage! Funny as it may sound, this is inappropriately luxurious for my little system (but it sounded tremendous in my main system)...
Onsale for $ 1,050.00 and shipping from Annandale, New Jersey...read more on eBay...

 by jlwoodley posted on Dec 07, 2020 17:31

adcom gfa 555 pro pre production prototype mod upgraded 300wpc please read
This is a pre-production prototype of the Adcom GFA-555 PRO. This is, essentially THE FIRST GFA-555 PRO and was built in-house some years before I started working at Adcom in 1993. The 555 PRO does all of the things a 555 does, but features balanced inputs, external circuit breakers and input level controls on the front panel. This particular unit looks and operates as a highly tuned consumer GFA-555; the breakers, input controls and balanced input were all removed or disabled before I brought it home from "the factory". I also installed GFA-5500 filter capacitors (the 5500 had just come on the market) and the very last 19" 555 faceplate from stock. Incidentally, this never had a proper PRO faceplate because it did not exist when this was built. I'd really l...
Onsale for $ 800.00 and shipping from Annandale, New Jersey...read more on eBay...

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