Right now I have a Denon AVR 591 pushing my Martin Logan Motion 12's, 10's, 8 and Def Tech pro 1000. It puts out 75 watts. I am looking at the Denon AVR 1912, Onkyo TX-NR609, Onkyo TX-NR709. I have had both Onkyo and Denon and like them both. The Onkyo 609 is 399.00, the Denon 1912 is 549.00...