I had a chance to run Axioms massively powered A1400-8(denon 3808 as pre/pro) against my Denon 3808 alone and I wouldn't say there was a huge difference but I did notice better bass levels at all listening volumes but other than that not alot of difference. The highs were a bit more open and everything was cleaner/crisper at higher volume levels. It is a case of diminishing returns.

You can find cheaper amps like the Emotiva but the pre/pro's are anything but cheap. I would suggest getting the avr of your choice and ensure it has preamp outs for all channels this way if you find the avr alone is lacking you can buy separate amps as you see fit and funds will allow and make use of the avr as the pre/pro.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70