I also love my AVM-2 and have had zero problems. I bought the MCA5 amp at the same time which, at 200w per channel into 8 ohms, has no problem driving Martin Logans (which dip to 2 ohms at times).
Anthem makes very good gear but the AVM20 (more $$$) is hardware upgradable and the AVM-2 is not.
Anthem makes very good gear but the AVM20 (more $$$) is hardware upgradable and the AVM-2 is not.