OK. What better use of money. Denon AVRx-3700 + Monolith 5x (about $1300+ $1400) OR just a better receiver like a AVRX-6700. This is for a guy that would not go bigger than 7.2 and running sub/satellite speakers. I guess this gets to the heart of how much does a separate amp benefit a system with fairly small and efficient speakers AND how much sound improvement does the better recevier buy you with its lower THD? My satellites are 5 1/4 woofers and 1" dome tweeters. 8 ohm.