alright i have decided for my system i want 1 rockford 12" punch and one mofo 15" but what are the best 10's for SQ i know with the 15 mofo and the 12 RF i will probly have enough SPL. so which 10"s have the best SQ to help average out the sound
Sounds like more cancellation than compression. If you want something to get loud and sound good, you need to do so with subs that are intended for it. 2 or 3 high quality 12" subs of the same brand would have done you better. In the case you're in, one driver will overpower the others as far as what you hear, 10" subs won't really balance out the sound, they'll just help make it muddier than it already will be. Different drivers will perform differently, and usually results in degraded SQ.