I know a fair share about home theatre and I'm afraid my knowledge falls short when it comes to AMPS. Why would I want an amp when I already have, what I consider, a kick butt receiver? What does an amp do that my receiver can't? Home Theatee Receiver: Onkyo TX-DS696 DVD Player: Sony Sony DVP-S530D (I think - not at home right now) Fronts: Cerwin Vega E-706 Center: Cerwin Vega (Unknown) Rears: Cerwin Vega DX-5?? Sub Woofer: Cerwin Vega HT-S10 I'll update this post once I get home and can look at the back of the speakers and the DVD Player.