destroyer speakers humming when idle?

[ladueinc]

i have a destroyer, after about 5 minutes after playing, there is a humming noise coming from all 3 speakers, i have the volume control on the lowest setting, when playing the machine, there is no humming noise, any help? thanks tim

[RKnarr01]

some machines have a natural hum in the speakers.

[arbycoffee]

power supply feed back, as to where to put a bypass filter I don't know

[Tony Junior]

But I'll bet somebody on PT knows where to put that bypass filter, and tell you pretty quick like too!