I have a sony es 30 and a rotel rmb 1066 amp. the amp is bridged (3 x 150) to power my front soundstage. i'm about to get the rotel rsp 1066 and a rb 1070 (2 x 130). question is: should i use the 1070 to power the rears or use it to power the front L and R and use the rmb 1066 to power the center and rears. i talked to 2 salesguys in store and they didn't agree on setup. any thoughts on which would sound better and why? speakers are HTD Level 3. thanks.