I recently bought an Adcom 565 on E-bay for $300. My thinking was the same as yours-one box for line level and phono. It sounds great using the direct outputs (by-passing all tone controls) with all my source inputs. I was considering a new pre-amp from Antique Sound Lab, but ended up going with the SS Adcom. No regrets, this has plenty of inputs to experiment with. I like to A/B different cd players and this makes it easy. The Adcom also has two out-put pairs for use with a sub,another bonus. You can't go wrong with the 565. good luck, Rich. Sorry, I have no experience with the 710.
Adcom Preamps 565 & 710- Any difference?
I am looking to consolidate all the separate small boxes (i.e., a NAD phono stage, a generic switch box, etc) into one unit. I have a low end Adcom (GFP-350) and an Adcom 5200 amp and want to upgrade the preamp. I keep seeing the 565 (an early 1990's vintage unit, I presume) and the 710 (a later 1990's preamp, also an assumption) on eBay and this site and am interested. What exactly is the difference- in price, in quality, in features? Why does the 565 generally sell for more? Any other preamp in the modest range I should be looking at?