well i have that sub in my setup right now, and it gets quite loud, i have in a 4.5 cubed box tuned to 36hz it sounds pretty good too. I got mine for $96 bucks off caraudiodeals.com but they dont sell it anymore. I would have gotten two if i knew it was going to be decent. Not many subs under a $100 bucks will make u smile but this one will.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif