Why address the shielded question to me?
As a ’wild guess’ the circuitry in the Bryston amps is far enough away that there is no need for a shield. (plus Bryston uses a separate toroid for each channel, they are stacked inside the case) Thus each transformer is smaller., with a smaller field. ?Plus how much is marketing vs actual improvement in the sound. Like the 1970’s specs with tons of feedback to make SPECS look good. IS the shielding for a reason? (Maybe some designs placed critical components TOO CLOSE, and wanted to keep them there, so they added a shield?) all sorts of possible reasons either way. IMO this is a THEORY question, One where there is not actual answer anyone can work with, just plays off folks needing excuses instead of actual listening.
And finally if a shielded transformer made ANY difference to the performance of a Bryston amp.. There would be at least several posts somewhere (I would have seen and read) discussing ADDING shielding and how it improves the sound. Since there are NONE.. I can say it does not add anything of value to the sound of a Bryston amp. Because somewhere, someone would be doing it ... if it mattered.)
As a ’wild guess’ the circuitry in the Bryston amps is far enough away that there is no need for a shield. (plus Bryston uses a separate toroid for each channel, they are stacked inside the case) Thus each transformer is smaller., with a smaller field. ?Plus how much is marketing vs actual improvement in the sound. Like the 1970’s specs with tons of feedback to make SPECS look good. IS the shielding for a reason? (Maybe some designs placed critical components TOO CLOSE, and wanted to keep them there, so they added a shield?) all sorts of possible reasons either way. IMO this is a THEORY question, One where there is not actual answer anyone can work with, just plays off folks needing excuses instead of actual listening.
And finally if a shielded transformer made ANY difference to the performance of a Bryston amp.. There would be at least several posts somewhere (I would have seen and read) discussing ADDING shielding and how it improves the sound. Since there are NONE.. I can say it does not add anything of value to the sound of a Bryston amp. Because somewhere, someone would be doing it ... if it mattered.)