This amp is ok to use with a 4 ohm load, specs are 120W@4ohm, 80W@8ohm
http://www2.randallamplifiers.com/images/stories/manuals/RG100ES-RG80ES-OwnersManual.pdf
So the fault was not caused by using a 4 ohm load.
Whether the fault is the breaker, or the breaker is just doing it's job is something you must determine, as Roly mentioned above.
http://www2.randallamplifiers.com/images/stories/manuals/RG100ES-RG80ES-OwnersManual.pdf
So the fault was not caused by using a 4 ohm load.
Whether the fault is the breaker, or the breaker is just doing it's job is something you must determine, as Roly mentioned above.