phonostage paradox


Any comments regarding an issue with my backup Parasound Z phono preamp would be welcome: When I use a MM cartridge, all is well; when I use a MC [in MC setting], a hum develops which resists all grounding strategies. However,my Denon 301II LOMC plays loud enough even in the MM setting, as does a LOMC Benz Micro Gold. Any explanations???
boofer

Showing 1 response by rauliruegas

Dear Boofer: Your phono stage has a real poor S/N rati through the MC option: 58 db!!! against the 84db on the MM option.

You can hear directly on the MM option your 301 because your PS has a non-normal MM high gain: 46db.

That PS comes with this switch:

"""" Exclusive AC polarity switch to eliminate hum """"

I don't know if you are using it.

Regards and enjoy the music,
R.