MIT Tube Cables and Solid State Amps?

I am looking at buying a Pr. of MIT MH 770 CVT Terminator Refrence II Twin - Tube speaker cables. I did not think these cables were compatable with Solid State Amps but the buyer is telling me that he used them with Krell Amps and they worked fine. A Tech. at MIT said He would not use them that way as tube cables are designed for tube amps. He also said it would not cause a service problem for the amp (Classe CA 300). I have been getting conflicting reports on this and I hate to miss out on a good deal. Any advice would be greatly appreciated. Thanks in advance!