Balanced AC possible without isolation transformer?

[John_H]

I have two P20s and was wondering whether it would be OK to connect balanced toroidal isolation transformers between the P20 and a source component. Please post your comments, if any - thanks!

Power Plant and Noise

Has anyone tried connecting a balanced AC toroidal transformer (Equi=tech, PLiXiR, Torus, etc.) - between the output duplex of a PowerPlant and a source component as a power conditioner? My two P20s “regenerate” wall duplex AC into low-distortion, low output-impedance AC to feed my system, but it’s evident from this thread that they generate idiosyncratic noise, and they’re sensitive to the quality of the input AC (as well as the characteristics of the input AC cable). So why not use a balanced…