I know that there are a few people here that are not big fans of Kicker, but I think it is one of the best bang for the buck general use, long lasting sub for the money out there. We sell more Kicker CVR 12" subs here than any other sub anymore. I never see them come back blown (when they are professionally installed and amps tuned, and left alone anyway). You can accomodate many different music styles depending on the box (sealed, vented, bandpass), and even one DVC 12 with a strong sub amp absolutely thumps (if space only allows one). Again, I am not saying they are the best thing out there hands down, but as for bang for the buck ($110 a piece or so), sound and longjevity, the Kickers are definately up there and worth the mention in this thread IMO.