Since then I always refer to the transformer as a “Cheeseweasel special” to distinguish it from many others CPC sell for double the price which I am sure are the same thing or lesser quality components.

A-1095 – UNBRANDED – GROUND LOOP ISOLATOR. | CPC

They do sell proper Neutrik audio transformers for way cheaper than I thought they would be but unless you are sending your audio down private or national analogue telephone lines these are probably overkill…