Well I have been powering my speakers just off the receiver and recently decided to get a separate amp to help power them.
I have a onkyo HT-RC 370 receiver
Rti 12(fronts) Csi a6 (center) and Fx 4 (surr) and the amp is a Emotiva xpa 5
I have the fronts setup running ch 1 and 2 to the tops and ch 3 and 4 running to the woofers. Ch 5 running center speaker.
Thing is I can't really tell much of an improvement . Did I just waste $1100 or is there something I'm missing here.