I have a tvc ref-3 that I'm very happy with, although I'm now moving to the c-core tvc with silver wiring.
TVC preamps: good or bad?
I was wondering what the advantages and disadvantages are of a TVC preamp? I have read elsewhere that transformers introduce coloration and aberrations in the frequency response, which is why we try to get them out of the output stage of valve amps. But ... what are the pros and cons of TVC preamps?