Yeah, any of those would be overkill for the Atmos channels. If I get a powerful amp, it's going to be for the mains.
I tested the AudioSource again and it's dead. I can hear it switching inputs when I give it a signal, but nothing from the speakers. Not even a hiss and I know this thing can't have a totally silent noise floor.
If I go cheap, then the Monoprice is it. If I don't, then the Outlaw amps are going to be hard to beat. That deal
@Pogre posted is great, but I'm going to have to think about it.
EDIT: Hard to not go with the Outlaw after reading this.
https://www.audiosciencereview.com/forum/index.php?threads/outlaw-2200-m-block-amplifier-review.11403/