My voltage dropped too low so it killed the power supply. This Used to be one of Scottie Johnson's old amps so the Protection circuit is removed, so you can't let the voltage get below 10 volts, I think keeping it above 12 volts would be best. I am in Frankfort, near Orland Park.what was wrong with it? and where in illinois you located?
I am not sure the manual sayswhat does this do at 4?