My front speakers are JBL ND310. Center speaker is Acoustic Research AR2C. I have 2 JBL PB12 (250 watt) powered sub-woofers. And the back speakers are JBL N24. I have a Samsung S221 DVD player. The receiver is a (POS) RCA Home Theater Unit. It came with it's own speakers and subwoofer for under $400.00. My system sounds terrible and I have spent quite a bit on speakers (over $2000.00). The center speaker sounds tinny when watching/listening to DVD's. I know I need a new receiver, but will it make a huge difference? I think all the speakers are pretty good quality. What receiver would you recommend in the $500.00 price range?