Damn, I was so close. I fell for the bold print!
So what would make this amp trip up at 40 watts with all ch driven, where so many other AVRS can come relatively close to their single/stereo ch levels? Power supply limitations?
I continue my search for specs that matter...

Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire