Sound Lab vs Magnepan 20.7

Not intentionally trying to go off topic, but given the OP's comment about transparency, as an ESL owner, I was wondering if someone can talk about experiencing loss of transparency with ESLs due to their use of transformers.

Ralph, yes there is a benefit in transparancy with the OTLs that I have realized but now I am putting that signal through a transformer with my Quad 57s. Previously that was not the case with my Jazz Modules. I was hoping someone could talk more about the use of a direct drive amp. I know Roger Modjeski builds one and some Acoustat users have modified their speakers to use it. But can it be done with other ESL designs such as Quad or Soundlab? At what level of complexity or risk. You pointed out a couple in your post but would like to hear more from you and others. Perhaps I should start a separate thread on that.

I used to live in Santa Barbara and visited with Roger back then. I was with him and Kavi Alexander once listening to an early version of his ESLs powered by an RM-200. I am now moving to the Bay Area and will definitely look him up. From what he mentioned to me the RM-10 which is one of two amps of his that I have was designed with the 57s in mind.

Quite frankly I am entirely pleased with the Atma-Sphere M-60s powering both of my speakers. The direct drive idea was more out of curiosity. I am sure Roger will satisfy that curiosity.