How many hours did you put on it? Perhaps it wasn’t fully broken-in. Also, did you try different loads?
MoFi "Mobile Fidelity" Master Phono.
Very interested in this unit. The interweb appears to be lacking pertinent information/reviews from owners of this fine-looking phono stage. It appears to be designed by Peter Madnick. Usually, I really enjoy the way his products are voiced. User impressions of the Master Phono would be very welcomed.