I’m using the relay on my MC6 Pro to switch on and/or off the reverb on a fender princeton reverb 68 custome, and this produces a quit audible hum.
I can clearly hear the difference from using the switch that comes with the amp.
Is there anything to be done about this?
Any setting or a specific way to do this to get rid of them hum?
You probably have ground loop and can search for help on that.
To start, try making sure both all units are directly plugged into the same outlet or power strip.
I’m having the same issue with my Princeton. The hum is only in the reverb path i.e. it gets worse as I turn up the Reverb mix.
I do not get the same hum from the relay ports on my GigRig G3. No ground loops here either.
@almadsen did you ever solve this issue? thanks!