Look at Advent Powered Partner speakers (Look for their highest model). They're rated at 35 watts per channel. Maybe they deliver 20 clean watts per channel. They are very compact and nifty. I like that if you put them on the floor, they point up at the audience at a 20 degree angle.

They run about $165 for a pair, but maybe you can get a great deal or a used pair.

Beakybird