From dwowen@cox.net Wed Apr 11 09:10:21 2007
Subject:Re: OT: 60hz hum


My Road Box III really hummed in my 90 year old home but not on local
stages. I had an electrician wire in a new dedicated circuit to my music
room and he also installed a ground buss and that was the end of the
problem.

David Owen

-----Original Message-----
Ryan Stroup wrote:
>
> My preamp was upgraded to current specs last July and I did buy it
> second hand on Ebay. So I can vouch for what Ted said as well.
>
> I'm well aware that the preamp is not causing the hum, but it does
> originate there. Both my keyboards have this same hum, but much less
> pronounced.
>
> On 4/10/07, jpittas
> >
> wrote:
> >
> > Regarding whether it would be safe to plug a power strip into a
> > HUMX, that should be safe (it's rated to 15 amps), but potentially
> > not effective since it wouldn't be eliminating ground loops between
> > devices on the same strip.
>
> I'm not for sure, but I don't think one device is causing another to
> produce a ground loop hum. I tried unplugging everything (when I say
> everything, I mean power cords, audio cables, lamps, computers, TV's,
> EVERYTHING) and then started with one device at a time. The hum was
> still there in each device that was affected before, same intensity.
>
> I think I may buy one of these just to see if I can get rid of this
> hum, even if I can only use it on the Speakeasy preamp, since that's
> where the hum is most prominent.
>
> Thanks for the advice.
>
> --
> Ryan
>
>
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