Tzh21y - what do you have the load set to in your Xono?
If you don't hear air on that SC Merc - and you don't find the Classic Bartok to be bright - it could be that you have too much load on your cartridge.
If you don't hear air on that SC Merc - and you don't find the Classic Bartok to be bright - it could be that you have too much load on your cartridge.