Vinyl rip sounding tinny

[Mike Turner]

I sort of found out what the problem is but I do not know why.

I only had the problem with the thin sounding rip when I use an external step up transformer and connect to the Devialet's MM phono section.

When I connect the phono cable direct to the Devialet's MC section the rip sounds fine.

However, in both cases the level is much lower than playing via the turntable, i.e. when I play back both files, I had to turn the volume way up.

Any idea why that would be?  The step up transformer sounds perfect if I play via the TT.