Might be a little smaller than you're looking for, but I've got a pair of the Blue Sky eXo2 (2.1 system) and they work great. Small, unported, easy to control how much bass response you want with the built in sub level control. Got mine off of Ebay for $300 bucks, and combined with a crappy old pair of single driver speakers for mono checking/setting vocal levels they make a great setup. They run about $500 new; might be worth checking out.