Hello, has anyone had the chance to listen to, or compare any of the following fully assembled Step Up Transformers (SUTs).

Coincident Statement MC SUT

Intact Audio SUT

Silvercore MC SUT (the "MC" middle model).

I need a 1:10 ratio gain (about 20db).

I am using a Lyra Skala MC into a Leben RS28CX Pre- with a built in valve mm phono stage.

There is precious little information (ie reviews) out there so your impressions would be appreciated.

Thanks, Stuart