Warning, RAMBLE!
I used to do sales/install/system-building in a pro-audio shop. I was surrounded by techs, and soundguys and production guys all day for over 3 years. I also saw which products, and mfrs had the most breakdowns and failures, and saw how the companies handled them.
I heard so many Carvin horror-stories, that it definitely prejudiced me. It may be unfounded, and they may make amps out of pure gold and stripper-nipples....but I just can't bring myself to buy a Carvin amp. I wish you guys the best with yours. I have NO experience with Carvin products...the shop I was at, would send you right back out the door if you walked in with one for sale, or repair, or trade. No other mfr got that treatment. But that was probably in no small part, that Carvin sells direct, and the shop couldn't make any money in trafficking their gear.
Anyway...if I were to buy a SS poweramp, I would definately do QSC PLX, or PowerLight. And BIG watts.