i am new to this forum, but i had to put my two cents in on this subject. as far as denon vs hk i would have to say the denon is better, because the hk runs real hot, i had one about two yrs ago and had to return it twice. as far as yamaha vs denon the yam is a bit on the bright side for my taste. and as far as the denon vs onkyo sound wise was not that much off from the denon and the onkyo ran real hot as well. all three are real good products, but for the long run and hassle free go with the denon( good product). my system polk rti38, polk csi40, polk r15, subs 1. ars112ps and rca sw100p( i know i have to upgrade my subs, waiting on my svs sould be here on this friday and you know what i will be doing)