Up for sale is a beautiful condition Adcom GFP-750 solid state preamp. No scratches; functions perfect. Blue board. Includes power cord, manual, and remote. Will double Box. Price is firm and the lowest on audiogon. Paypal please ad 3.5%. Buyer pays shipping.
Former Stereophile Class A; excerpt from the stereophile review:
Actually, the preamplifier that most reminded me of the GFP-750 was the Mark Levinson No.380S, which costs $6495. The two had similarly open, grainless characters. In direct comparisons I had an extremely difficult time discerning differences between them—and that was a sighted comparison! Blindfold me and ask me to identify which one was playing and I'd probably have to flip a coin.
Unless the Adcom was in passive mode, when it was the sonic equivalent of nothing at all. What's it sound like? After many hours of listening, I'd have to say, "What did what sound like?" The GFP-750 is the preamp for the audiophile who hates preamps.
But if I had to describe the sound of no preamp, I'd say open, open, open. Open as in huge soundstage, uncompressed, naked—nary a veil in sight.