Ok so I currently have a Denon AVR-891. I previously had a Denon AVR-3808 that I sold and now regret. If I could find another AVR-3808 for a decent price I would grab it in a heartbeat but I have not been able to find one so instead I am looking at either an Onkyo 809 or the now discontinued Pioneer Elite vsx-94txh. My questions are, would going from my current Denon AVR-891 to either the Pioneer Elite vsx-94 or the Onkyo 809 be a significant upgrade in SQ? Which would you guys go with? My speakers are Def Tech's and I do not have a need for 3d. Thanks in advanced!