Verified answer

rockford or kicker.....id prefer kicker

From personal experience I can tell you the bang for the buck on the xplods is amazing. If price is no object, then I would spend more and get the higher end brands.

It's just as important that you have a box that is designed to the specs of the subs. If you don't even the best subs will sound like crap.

We once had a box that we put two 12" $10 subs in and it sounded better than a box with two jl audio subs. Because the box was all wrong for the JL audios. The two 12" subs were crazy loud, probably a world record for $20 worth of subwoofers. If you are looking for a great box at a good price, check out the source.