I had an Adcom GFP 555II years ago and had been very pleased with the performance. I had an Adcom Dolby surround processor and amp that needed work. Sent it to Adcom and they fixed it for free. This was after it hadn't even been made anymore and the warranty was over, besides I was at least the second owner.
If they are still upto those standards I'd buy one if I were you. I would however be more inclined to go with a used Rotel preamp. Either should be available on Ebay regularly.
If they are still upto those standards I'd buy one if I were you. I would however be more inclined to go with a used Rotel preamp. Either should be available on Ebay regularly.