I just got an AVM300 and am shocked at how much better it sounds than my old NAD. The only complaint with the AVM is that though it is very layed back and musical for soft textures strings and whatnot, it lacks in punch, so it's a bit polite for Rock & Roll. It is an astonishingly transparant piece for it's price range. It buries my old NAD, and I think it is more musical than the Anthem 20 model separate system.
