I got the AV60 and cannot express how much it improved my sound doing nothing more than plugging it in.
I had tried the Marantz AV7005 and found it didn't sound right to me even with the Audyssey, i could not get it right.
I had some amps, but ended up buying newer Axiom ADA1000. Now I am in bliss
Axiom: ADA1000, LFR1100, VP180, QS8, EP500, M3, M3comp
AudioSource: Amp One/A