I wish I had time to write an essay... while scouring the internets today it dawned on me how audiophillia is not that different from dating! I hope to keep that idea fresh in my head. I think it would be an entertaining read if I get it into words.
Sounds like a fun read, so I thought I'd remind you while you are in the middle of your move!!!
How long did you have the 2200 before it blew?
Was your system operating at extremes nearing the max limits you have ever driven it, or did failure occur under comparatively benign conditions
Any signs of weakness for the other one(s)?
Do you still have the defective one?
Did someone take you up on you idea to give it away (buyer pay shipping)? Ask them to report back after they investigate/repair it!
Where are you?
I have a couple of these and would like to know why it failed, you said it was hardly hot when it failed, so that begs the question of whether it was a load issue vs some type of fluke!
Maybe after things settle you can pop the top and look for any signs of damage/charring.
Edit: It would also be a good idea for you to know what happened. The 2200 is generally considered a well-rounded solid amp - not the most rigorous, but definitely competent. If there is some aspect of the 2200 that is ill-suited to your speakers, you'd want to make sure your replacement doesn't suffer a similar malady. Otherwise, you are either gambling or need to pay over-the-top money for something like a Benchmark, Bryston or Krell!
Pro audio amp may be the way to go - maybe ask Verdinut about a good QSC amp!