If you do end up sending it in to McIntosh for repair bear in mind I'm told it's a 1 year wait at the moment for non-warranty repairs.This came directly from an employee.
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?