As a matter of fact, I was just talking to the local HK expert at the Circuit City yesterday about this very topic. He assurred me that my AVR 630 would run my 6 Ohm fronts and 8 Ohm surrounds without any problems. He went on to say it would also run 4 Ohm speakers as well. This goes without saying for the AVR 7300, as it provides about twice as much amp power as my 630. You should be fine.