I have cerwin vegas (v series). I say get 4 cerwin vegas e series, v series, or classic series with 15" woofers(3-way) for front and rear and put them on stands off the floor to reduce echo, get the matching centre and 4 matching bookshelf spkrs for rear and prescence, then never turn it past -20db because that might harm the unit and youve got one awesomely thunderous mighty system!!!!! Okay, you can get 12" or 10" woofers, but you have to promise me you'll get 4 subwoofers then...just joking. Hope you find what your looking for.