In following on from above:
Also check to see if the amp has internal fuses and depending upon the location of the breaker
(as discussed above) There could be a variety of causes.
If the breaker
is on the amp, check for any additional protection (fuses – both internal and external), unplug all inputs and outputs from the amp, turn the volume to 0, inspect the power cord
and then try to power
it up again.
If it is an external breaker
, check any other equipment that is also on that particular circuit
, as it may not be the amp causing the beaker to trip. Or, test the amp on a different circuit
Once you can give us a little more info, I am sure that we can help you isolate the cause a little more efficiently.