You have your phono preamp set up incorrectly.
Set it up for use with a MM cartridge. This is how the 10x5 wants to be treated because it's a hi-output MC designed for use with MM phono stages.
If you can change the gain independently from the loading, then try both gain settings on your Moon (40 and 60db gain), but in any case you should load the 10x5 with 47K (as you would with a MM), not 100 (for MCs).
Hukk
Set it up for use with a MM cartridge. This is how the 10x5 wants to be treated because it's a hi-output MC designed for use with MM phono stages.
If you can change the gain independently from the loading, then try both gain settings on your Moon (40 and 60db gain), but in any case you should load the 10x5 with 47K (as you would with a MM), not 100 (for MCs).
Hukk