I'm about to buy a new receiver. Will the Pioneer VSX-1018AH-K power my set-up adequately? I'm running a pair of Polk RTi10's, Csi5, and a pair of RTiA1's. My Yamaha RX-V2500 powers them just fine. I'm interested in this receiver because of the reviews/price and I want one with HDMI and DD TrueHD and DTS-MA without breaking the bank. Should I also consider the VSX-01TXH (Elite)? Or are these two the same unit with different names?