Yes, this has been very interesting, and expensive !!!!
However, after dissecting every single avenue here with Alex it is clear that the culprit at least in this instance were the MIT Interface cables.
Incredible what they do with these IC's, how ultra high their values are.
Soooo, we have had a blow up of amps so far 6 times over 12 years, with well over 1000 x amount of amps out there. We're talking about a really bad one, burnt parts or blown caps etc. Why ??? Either owner problems with parts of the system or mishandling or parts failures,
Some amps in countries such as Australia / NZ, or Singapore have measured voltages of well over 255 Volts in the customers houses. 255 Volts and never a problem !!!!! We have very, very adventurous speakers paired with our amps, most little known, others more, such as the original Apogees. How about 1.2 Ohm nominal with 79 dB efficiency ???? No issue running these aaaaaaarghhhhhs %%*&(*^_(_(*^%&^$#^& with our regular monos. So, the track record is excellent here.
None of these circumstances gave us one iota of problems.
In Trey's system with the MIT "s ????Different story altogether.
Thankfully Trey has bought new cables since then.
And of course I try to make things right no matter what. Regardless of whether this is a parts problem and by default our bad, or an obvious system problem. Of course........
Late,
Klaus