In my system the 758 was noisier than the 4500. Admittedly, I have a room with lots of electrical noise (led lights on dimmers, PCs/wifi router - all in the same room). I even added separate chassis ground connections between the 758 and my amps, which helped. But I could still hear a faint buzz at the MLP with the 758. In fairness to the 758, the same buzz was present with my previous AVR, a Sherwood R972. But with the 4500 I could no longer hear that buzz at the MLP.what do you mean less noise?