Well, as an update... my 4 1600 Brutus '08 models made it through this weekend.... (Yeah- as in 5 years old)
Demo after demo, then did 2 Street Beat runs back to back at full tilt on antique floppy suspension subs (150.8 peak dropped to 149.7 b/c I wasn't paying attention to voltage), then did more demos for 15 minutes playing the same track at the same volume.... and after all of that.... the amps were as cool as cucumbers.
At the show there were two dudes talking crap (about everyone's systems) but also about Hifonics when they saw my amps. ...funny, they didn't have rides in the lanes or even cars there with systems. Hmm.
I still ain't even mad.