Emax

Hi,

I was wondering if this was a problem that, a) other users 
experience and is normal, and b) if not, if it's something that can 
be fixed by an Emu authorized repair shop.

Basically, the outputs on my Emax, when connected to my mixer, 
emit a high pitched whine/buzz. It's subtle but quite noticeable 
(and annoying, particularly on quiet passages of music), 
especially if the volume on the mixer is higher.

Is this something that's just due to a machine that's this old, or 
can it be fixed? (It's the only piece of gear I have that does this,
all 
my other pieces are fine...)

Thanks!

-a/.