For driving a sub, the PSE Studio IV is simply unbeatable, but it is hard to find. Shouldn't cost more than $400 if you do. Another killer bass amp is the original Belles 150. I doubt you will see one of these on the web though. Too old for most internet audiophiles.
Best used amp for < $500?
Poor college kid here. (we all were at one time, weren't we?) I'm looking for a good 2 channel amp for possible main usage, or possible bridging for my THX sub. I'm trying to keep the cost down below $350, max $500. What are my options? (I've looked at used Rotel, Marantz, NAD, Carver, AudioSource, Adcom)