I'm going mad thinking about upgrading the whole homecinema system. And finally I found two options (DENON AVR-1604 or NAD T742). Unsure about that. What shoud I buy? Which one are best? Will be used with Cerwin Vega! V-6F (10-140W/8Ohm/91dB) rears, Cerwin Vega V-12F (200-300W/8Ohm/98dB) front, and CERWIN VEGA V-5C (125W/8Ohm/91dB) center. P.S. Sorry for posting in wrong place!