…...I had to laugh and my apology to the OP but it happens so often here that I had to say something. Jackd adds his or hers opinion that has nothing to add or do with the OP's question on capping his amps.
I owned Classe' gear for years and gs556 adds some good information and living in Syracuse, NY ; United Radio does really nice work. I would also contact Classe' and see what they would suggest as the amps are obviously out of warranty so the one who seems to have the best approach for you would be a good starting point. Good luck and those are nice amps designed by David Reich.