Atmasphere,
Not sure if your reference is to Steve McCormack (ie. mfg of transister amps), but I know he also recently tried the autoformers to very good success. I think he is going to use them at CES and promote their use on his website, so I don't think it's any "secret" I'm disclosing.
My two cents is worth far less, but I can also vouch that the difference you referred to can be quite significant.
It's probably fair to throw some kudos to McIntosh for implementing this long ago with SS designs.
Not sure if your reference is to Steve McCormack (ie. mfg of transister amps), but I know he also recently tried the autoformers to very good success. I think he is going to use them at CES and promote their use on his website, so I don't think it's any "secret" I'm disclosing.
My two cents is worth far less, but I can also vouch that the difference you referred to can be quite significant.
It's probably fair to throw some kudos to McIntosh for implementing this long ago with SS designs.