Isolation Transformers -- Equitech or Torus?

Thank you.....for an install where the i-transformer would be used to drive power to a 125amp sub-panel for listening room, which is the best model overall for us audio-nuts' concerns?

I've had great experience with Equitech, and this is the first I have heard about them not being easy to deal with.

Love my 2Q, but have not heard Torus.

Both units are good, but Torus price are much more lower than Equitech,.....

Thanks everyone! Favorite/best models for Audiophiles (think sub-panel rated up to 125amps and whole-house panel 225-amp or better).

Asked Equi=tech twice in about a week to quote a price without answer. Once to Torus and had an interesting discussion with them.
at the start I gave a slight advantage to Equitech but now I imagine if I deal with them and need an aswer or have some trouble to fix and they don't answer... What do I do ?
As I live in Europe I need to be assured for these things as it is difficulté to phone direçtly in the USA technical spoken language etc.