Fjn04, I'm very impressed with Bob's 1131 SUT. IMO, it does not have the veiling (or smearing) of low level detail that a lot of lesser SUT's are prone to. Mine is a 1:10/1:20 (using the 1:10 position) but I had to change the input resistor on my MM tube phono stage to get the reflected impedance down to the 30 ohms that worked best in my system.
If you have a 47k input and can not change the resistance than the 1:30 SKY model may be a better match if the extra gain is not an issue for you. FWIU, the 1131 set to 1:40 may be to much gain especially if your phono pre is SS.
I assume the 20X2L is for a secondary system?
