I'm curious whether the wall warts you received from SoundSmith were SMPS, given you reside in the U.K. and the analog warts supplied here in the U.S. would probably not work for you. They do seem to work very well here -- with care of setup, the result is very satisfying.
In any case, this would be interesting to try. I wouldn't doubt for a second that changing power supplies would change sound.
Jeff, I believe they're cheap'n'nasty
I can only go on what I've heard, and that is that a bespoke overspecced psu, w audiophile pwr cord, DC leads and fuse, makes a massive difference. Lower noise flr, more delicacy and air.
Thanks, I had assumed the 120V linear supplies would not be provided in the U.K..
I can't imagine it getting better! It's amazing now. I only hesitate because there's no way to try it before committing. But that's pretty much how things have evolved in the high-end I guess.