Good morning Octavian. Your choices in receivers has me drooling. Power wise, Hk and Nad seem to be pretty much equal. They will easily drive any Axiom speaker. I've read that both are very musical and a joy to listen to.

It appears that the Nad 763 has only 6 amplified channels. So if you are going to use a 7.1 setup now or in the future, stay with the 773 or the hk 7300. The hk has video upconversion. Not sure if the Nad 773 has it? That's all I can think of now. Later, Mike

*Michael*
AV123 Refugee - X-LS Encore, X-Voce, X-Omnis, Elt-Dpa's
Denon AVR-591
Magnavox NB500MGX BDP