I was comparing the two at my job today and have come to the conclusion that the AVR354 is a far more powerful receiver than the 805. I first had the 354 on a pair of floorstanding speakers and played some ray charles and i could have sworn there was a subwoofer on but there wasnt. I popped off the grill and saw how much the speaker was moving. It was tight and precise and the bass line was very smooth. Then i put on the 805 with the same settings, and tried my best to put exactly the same volume and the 805 sounded a lot smaller. I looked at the speaker moving and you can only see the speaker moving when there was a bass drum playing. How does the 354 get the speaker to sound so much more full than the 805 when the 354 is only 75 watts and the 805 is 130? Also what is the whole "high current" thing with Harman Kardon receivers?