Dear @westcoastaudiophile :No, I never listened and I never do in my system due that around 16-18 years ago we designed and builded an active high gain phonolinepreamp that was the Essential 3150 and today is the 3180.
Even that I still own some SUT’s coming from Denon, Audiocraft and Entré but several years ago I used maybe almost " all " the vintage top japanese SUT’s and no one came wired balanced. The today units still own all are upgraded/updated for me and in the Entré I tested it balanced vs unbalanced and at least in my room/ system I did not listen any advantage in the balanced way and I have to say that the MM stage in the Essential is second to none.
I posted and post about SUT’s when some audiophiles ask for..
Of my SUT’s I have connected in my system the Denon AU-1000 that I’m almost sure is the best SUT ever and today almost imposible to beats it.
The name of the game in SUT’s is the quality level design, build and excecution to that design. Denon transformers were made by Tamura-San where the ones in the 1000 are superior to the ones in the 340. Those kind of transformers does not exist any more.
Here you can read about the Denon AU-1000 that I own:
http://20cheaddatebase.web.fc2.com/needie/NDdenon/AU-1000.html
https://www.denon.jp/ja-jp/museum/products/au1000.html
Btw, I have nothing against the Phasemation.
R.