Right match

The question is: do you have a phonostage between TT and preamp line stage? Many preamps have an input that says phono however it is meant for an external phonostage. 

A followup to that is: does the phonostage provide for low output MC cartridge if indeed you are using one. A MM phonostage will not provide the gain needed for a LOMC cartridge.

The M8 has a phono stage, according to the website, claiming for both MM and MC.  So along mesch's lines, (1) did you plug the TT into the phono input and (2) if so, did you plug it into the MM or MC input?  From your description it sounds like you might be using a lower output MC but going through the MM input.

Right the TT is plug into the phono input MM but it sounds horrible a $5000 preamp should sound great with any distortion and at 60 db I can't barely heard the music

What cartridge is on your turntable?

There is a switch on the back of M8 that toggles between MM and MC.
Like I said if you are using a turntable, make sure it plugged into the phono input on the back of M8, it is grounded to the ground screw, and the MM/MC toggle switch is set according to the type of cartridge you’re using. So tell us what cartridge it is. Or just try flipping the MM/MC switch to MC. Report back what you’re hearing.