Dear Rme Users and workers,

I'm owning a RME UFX since 2 years and a half, and thank you guys from RME because I didn't have a single crash from the soundcard since then, and the converter quality is really crystal clear!!

However I noticed a problem yesterday :
I can hear a buzzing sound starting from gain -14 / -15 and below, on the phone output 9/10.
I can also hear the same buzz when I push the gain to the maximum on my main speaker ( AN 3/4 ) (starting nearly to the maximum gain, -4 -3 db)

I don't hear this buzz on phone 11/12, even with gain pushed to the maximum (I checked the settings on TotalMix, both outputs have the same settings, every input muted and jack and xlr unplugged. )
Nothing changes when I unplug the usb from my laptop, It's not coming from the USB power.

I tought about an electrical issue, so I plugged my UFX into another plug with all other electronic system switched off, still same buzzing sound coming from that one phone.

It's not a so big issue because I don't work at such gain level (thanks for my ears) while producing but music is my work and this UFX my main tool for playing lives concert also, and the main bar gain can reach quite a big level depending on the places I play !

Does someone know If this phone 11/12 has another electrical path than the phone 9/10 that could make it more isolated ?
Or do I have a problem with my soundcard ?

Thank you a lot for your answer, sorry for my bad english, I think you should be happy reading it and not hearing it

I wish you guys the best with music and a big new year's Party !!

Peace,

Alim