Basically these speakers sound very "tiny" (I'm not sure how to spell that, sounds like "tin" + e ). You are right, Winamp's controls work well, and I suppose I was looking for something that applied that to all audio going out the line output. When I loaded "Full Bass & Treble" in Winamp's equalizer, the sound improved greatly. Unfortunately, these speakers mostly won't be used for Winamp.

Perhaps that equalizer isn't a bad idea. do you know of any very simple equalizer/amp combos? I just need it to drive 2 to 4 speakers.