Choosing an SUT?

Why do you need a SUT for 0.4 mV cartridge ? 

Hi,
+1 @chakster
i can understand it if you want to avoid the JFETS in MC input, that may give better sound but a gain of 60db should be more than enough. 

You bring up good points about the gain achieved by the Chinook.  Other owners of this phonostage have indicated the superiority of the mm side over the mc side.  With a transformer I can exploit this advantage.   It would be great to audition candidates to see if it's true. 

When using my Herron VTPH-2A, which is also a JFET MC gain stage, I greatly prefer the sound using a SUT into the MM tube section.  I've used several carts ranging from 0.3mV - 0.5mV this way and always prefer the SUT into the Herron.  Similar results with the Chinook wouldn't surprise me.

What SUT are you using?