I'm now on my 4th subwoofer for my 2.1 MUSIC system in about a year. A simple setup of a Yamaha A-S501(2 ch.integrated amp), a Pioneer PL 55X TT; and depending on my mood either 2 psb MK50II or a pair of B&W DM310s...but if I'm real lucky I have a smaller sub to make my smaller speakers come...