Quote Originally Posted by walpurgis View Post
Can you borrow a known good alternative for comparison? A poor SUT can be disastrous for the sound. Yours may be OK, but it's worth checking.

There is possibly a way to check its influence. Use the MC direct into the MM input without the SUT. You'll have to turn the volume up a lot higher, but you should get enough sound. If it sounds way better, then the SUT is suspect.
Unfortunately I have no alternative source for the SUT. Would comparing SUT into MM with going straight into MC reveal the quality of SUT?