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

That is weird.  I am having the same issue on my MP-7.  I will try 
changing out the power cord tonight, but I am not sure that is what 
my problem might be.  

Can someone recommend to me how to remove the ground loop from my 
equipment.  I think that is where I am getting my noise from.

thanks,

--- In xl7@yahoogroups.com, "quebec88" <quebec88@y...> wrote:
> Hi,
> 
> Just purchased a E-mu PX-7 from Guitar Center. I couldn't resist 
the 
> cheap price. I brought it home today and hooked it up to my Peavey 
> Amp. I noticed a loud humming noise. I checked the patch cable. My 
> Amp was fine, because my other gear connecting to it were fine. I 
> changed patch cables, plugged it into another channel. Same 
problem. 
> I also tried plugging the cable into all of the outputs on the 
back 
> on the PX-7. I still got that damn loud humming noise. I then 
> removed the cable from the unit and I hooked up some headphones to 
> the PX-7. No problems there. It worked fine. I was thinking about 
> bringing it back to Guitar Center at this point. The only thing 
left 
> to change was the power cord. I figured what the hell. I grabbed a 
> power cord from one of my PCs and plugged it into the PX-7. 
Presto! 
> The humming noise was gone. Bizarre. Did I have a faulty power 
cord? 
> Has anyone else had this problem? Anyway, the unit is working fine 
> now. So far, I'm very impressed with the PX-7. I'm looking forward 
> to really diving into this thing. Right now, I'm just getting used 
> to the basics. I'm looking to create some dance music with this 
> thing.
> 
> Here is my current hardware gear:
> E-mu PX-7
> Korg Karma w/EXB-PCM08
> Korg Wavestation
> Yamaha An1x
> 
> I've been doing some serious downsizing with my equipment. I had 
too 
> much stuff and I was running out of space. In fact, I traded in my 
> Korg MS2000, Yamaha TX81Z, and Boss SP-202 sampler for the PX-7 
> today.
> 
> Last question,
> Can the PX-7 control my other synths (Karma,Wavestation,AN1X)?
> 
> Thanks,
> Domenic