I just recently hooked up a Sony TA E 80ES Pre to the Denon 2000ivr direct in - WOW! what a difference that makes, especially for the power handling! I was missing that punch and headroom using only the Denon with my 805 matrix speakers, but not now - just wondering if a dedicated power amp (POA 3000?) will be even "better". no just to find one to compare it to.
But for the money i paid for both of these units, it's hard to think i could get anywhere close to this quality with new equipment for the equivalent budget.