Since you seem to be quite rightly annoyed about your Tesla purchase and your bad experience, I would have thought that you’d have some empathy for a person getting shafted by a HiFi company. It would appear that LM don’t have even the most basic protections on a 10K product. Given the lethal voltages tube amps run at, this is unforgivable. In this case there was a blown tube and transformer close to going critical. Since excess heat was mentioned, I’m guessing critical is catching fire. So, the OP spends 10K on amps that can fail in a way that they could catch fire and burn his house down. Loss of property and potentially life.
In that context, I think it’s entirely reasonable for people here to conclude that LM amps are not worth buying and should be avoided.
Perhaps you have some LM amps you need to shift so you can afford to replace the Tesla? 😜