Sharing Power Supply - Analog and SOME Digital pedals problem.

[alex frias]

Lots of pedals... a very big pedalboard, but some nightmares along the dreams.

Using some digital pedals along my analog ones sharing the same power supply leads me to an extra 60Hz bleeding as some kind of ground looping effect would be present.

Anybody experienced that?

BOSS pedals as DD-7 don't seem to behave like that. But some new EHX, Line6 and cheaper ones show this problem...

[jkokura]

What kind of power supply, and what kind of pedals makes a big difference. I use a good isolated power supply for my effects and rarely power more than one pedal per isolated supply and I don't get the effect you're describing using all sorts of digital, analog, and even fuzz effects. If you're using a one spot style supply where nothing is isolated - you can experience what you're describing. The only way I know of how to deal with it is to isolate the power supply to the pedals causing problems.

If this isn't really an option, perhaps someone else can suggest a mod you can do to the pedals in question that might help.

Jacob

[alex frias]

I think you're right. For now I use different power supplies units for each "group" of pedals. I discarded an exceeding current needed by the pedals as the PSu's provide current away beyond they need. The PSU's are very well filteres and regulated. So you just confirmed my idea that I must build a PSU with isolated outputs for each group of pedals. Something like Voddo Labs one.