Well for starters these things are monsters don't expect to fit them in the door of your truck or car unless you got some deep mounting depth. How it sounds well the only way to explain it is LOUD. I've tried it both at 125 watts rms and 45 watts rms and 45 is all you unless you want to be deaf in a week. Also they thump and they thump hard, one of these speakers vibrate my car at 45 watts and I like my music loud real loud but sometimes you just got to turn it down with one of these things. Always good sound quality, good bass just a great speaker altogether!