Something’s going on, but it’s not the power cable.
I’ve used one of these on a tube amp. It lived up to the hype, but after many scotch tape repairs to the candy wrapper (as approved by Pierre’s staff) I switched to over priced fancy stuff.
10 gauge power cord. Too much power for tube amp?
Tube amplifiers tend to be sensitive on incoming voltages. Is there a chance a bigger gauge power cord like 10 gauge may not be a good thing?
My amplifier tends to shut down occasionally upon start up. maybe moving to a higher gauge might be better. Does it matter?