stevem Messages: 4733 Registered: June 2004 Location: NY
Senior Member
These amps like many other model Kustoms are built with thermal circuit breakers that on the schematics are called thermostats.
These are designed to open up the AC wall voltage going to your amp if the running temperature of the output stage exceeds 182 degrees F.
This is the likely cause of your amp shutting down after only 3 minutes of bring played, or even just being on in some caes.
Can you read a schematic, post back a reply and I will explain to you how to proceed.
This is a easy fix, so don't sweat it!