Hum from Multi-FX Pedal

[honestjohnny]

Apologies, I know there are a ton of threads on this, but may contain conflicting and partial information. I use a single multi-FX pedal (Zoom 506) into a powered PA cab (Carvin LSx1503A), both are plugged into a standard power strip. I get hum when I use the pedal with the AC adapter (One Spot), but not with the battery. So here is the question as specific as I can make them.

Is there some way I can eliminate the hum while still using the AC adapter, such as the Ebtech Hum X or removing the shield from the AC adapter (please give specific instructions or links to same if it requires wiring/soldering)?

@ The Moderator: Could you please place a sticky re: Ground Loops and Hum versus Single Coil Pickup Hum versus whatever. This would save a lot of time and help the autodidacts like myself.

 

[sean.1986]

The hum is probably the transformer. There's an Electro Harmonix pedal out that eliminates hum.

 

[dannybuoy]

Try another power supply if you can before trying noise supressors. My Zoom B2 was fine on the original power supply that came with it, but hummed like a mofo on my 9v daisy chain.

 

[DanFold]

Put jump leads from something metal on your amp, to something (earthed) metal where your playin, it wont hum with your power adapter then.

or just get the amp n cab n everythin earthed propper...