how is the infinity REF611A. it's rated at 657 x1 @ 2 ohms. I have two perfect 10.1 subs and nead a new amp. I have a audiobahn a8000t now. Ya it sucks!!! I'm trying to pick between the kick 600.1 and the infinity 611A. the 611a has more power. They both are cea ceritfied.