I have found a nasty ground loop sounding buzz, but it is actually my dishwasher! On the fence about what to do. One thought is to add a cheaper isolation transformer, but I wouldn't mind my tube gear on regenerated AC
The noise floor of my tube amp with shorting plugs is quiet a bit quieter than running DAC in, and dishwasher off. I feel there is still improvement to be made, even after getting the dishwasher out of the picture.
I have a small 100w AC regenerator for my DAC(s)/Preamp.
Problem is I can not connect my tube amp to it.
Considering a larger regenerator or isolation transformer.
Question - does the AC>DC>AC process of the regenerators effectively isolate it from circuit?
thanks for your thoughts!