Emu XL-7 & MP-7 User's Group

Bad earthing, yep causes hums..
was the problem only when you connected it to you makie mixer or did it 
still do it alone with just headphones plugged in?
Like Aaron said try powering in from another socket and maybe try 
another IEC mains lead.. also those multiway extension cables can be a 
bit moody somethimes, if your using one?
You could buy one of those mains outlet fault testers that tells you 
when you have a problem. Plug it into your mains outlet and read the 
display.
Cheers
Gonz


--- In xl7@yahoogroups.com, "gutman75" <bgutman@c...> wrote:
> --- In xl7@yahoogroups.com, "infradead" <infradead@y...> wrote:
> > how old is the building you're in?
> 
> Funny you should mention that: the studio is in the old part of 
house, 
> which is over 200 years old. At any rate, the power is notoriously 
bad 
> in our area (recently one of my hard disks died - apparently, because 
> of a voltage spike, so I'm going to get a UPS anyway). Could low-
> quality power really be causing hum? If so, a UPS is supposed to 
help, 
> right?
> 
> Thanks a lot to all who replied!
> Have a nice day,
> Boris.