Fuzzy Hum

kusalamati · 2014-12-17T07:42:50.000Z

Hi folks,

A little technical advice is required.

I have the Monomachine rigged up with two pedals and a little mixer.

With the pedals switched on there is a background hum which stops completely if I touch any of the pieces of gear (including the monomachine), suggesting it is a grounding issue.

Any ideas how I can remedy this?

Thanks,

Dave

kusalamati · 2014-12-18T18:50:05.000Z

Looks like this might be an expensive remedy…
http://www.pmtonline.co.uk/voodoo-lab-pedal-power-digital-vl-ppdex.html

alfred · 2014-12-18T20:34:29.000Z

Do you have the power for the two pedals daisy chained? Then a dedicated pedal power supply with isolated outputs MIGHT help. But I doubt it. Try using two separate PSUs for both pedals and see if it makes any difference.

What will definitely help is a stereo DI box with ground lift, or alternatively two of these boxes:

Musikhaus Thomann

Palmer PLI-01

Palmer PLI-01, 1 kanaliger Trennübertrager im Aludruckgussgehäuse, Klinke Ein- und Ausgang, ideal zum Entstören von Gitarrenracks, 5 Jahre Herstellergarantie!

I had the same problem and it worked for me.

kusalamati · 2014-12-18T21:06:20.000Z

It’s a Strymon Timeline and BigSky, so they each have their own power supply.