The Best? Thats debatable..... I just upgraded from the Mack Daddy 12's to a pair of TDX 10's. In "my opinion" I like the Diamond subs better than anything else out there, BUT there are some great subs made by alot of other companies. If your looking for great SQ AND great SPL the Diamonds are really kick-*** in both areas......go find a dealer take a listen and judge for yourself. I wouldnt trade mine for anything.