Thanks for replies! Condition of amp is my primary concern; I'm willing to pay more for a healthier amplifier. I really do get the feeling that there isn't another >$500 used solid state amp with as much grunt and finesse as one of the higher-wattage HCAs (e.g. 1500). I'm pretty sure that all that power is what enabled it to sound so good with the power-hungry Polks - detail, depth, confident transients. It really was an ideal pairing.
I've looked at the New Classics a lot. I think that my feeling was that they're underpowered. The system is basically built around the Polks: really good bookshelves that need a lot of electricity. The 1500 is 205w @ 8 ohms, 315 @ 4 ohms, with 60 amp peak per channel. It really drove the Polks like no other amp I've owned (including various Adcoms). I'm not sure the New Classics have that grunt, but I'm gonna take another look.
I've looked at the New Classics a lot. I think that my feeling was that they're underpowered. The system is basically built around the Polks: really good bookshelves that need a lot of electricity. The 1500 is 205w @ 8 ohms, 315 @ 4 ohms, with 60 amp peak per channel. It really drove the Polks like no other amp I've owned (including various Adcoms). I'm not sure the New Classics have that grunt, but I'm gonna take another look.