Looking for a warm sounding amp or integrated with a torodial transformer

Clayton Audio, particularly their "Special Edition" version.

OP,

Sorry, I have no idea what kind of transformers Audio Research uses…. Ones that sound fantastic, last forever and look good. I stopped being concerned about how an audio goal, was achieved about a year after I got in to high end audio… about 50 years ago.

@ghdprentice its a mater of chemical sensitivities for me, i react to all of the square transformers I've tried, the torodial ones have been fine, different materials, go figure.

I think Parasound uses them in their amps and integrated.

When I had the Halo Hint it was warm sounding.

bought a Belles Aria recently and compared it to a Rogue Sphynx, I prefer the Sphinx, but it does matter which tubes you use in the Sphinx, my favorites being NOS Mullards. I'm finding it hard to explain all of the differences, the Aria has a lighter, brighter sound in my system to my ears, the Sphinx has a fuller, darker sound. The Aria shines on low volume delicate music, the Sphinx shines on vocals and more dynamic music. The Aria edges out the Sphinx in the reproduction of piano, the Sphinx is a tad harder sounding. Simply put I enjoy listening to the Sphinx more, I listen mostly to jazz. I'm keeping the Sphinx and selling the Aria.