Voodoo Lab

I'm running a GCP/GCX combo with my 5150-50 watt. The GCX is set up like this:

Loop 1 - Eventide Modfactor

Loops 2 through 4 in amps FX loop

Loop 2 - Eventide Timefactor
Loop 3 - TC Electronic Spark mini (for clean channel boost as anyone with this amp will understand)
Loop 4 - TC Electronic Spark mini (for lead boost)

Nothing in loops 5, 6, 7, or 8

I have the Eventides both plugged into a Furman power conditioner as well as the amp, GCX, and a Power Pad II by pedal pad. The TC Sparks are being powered by the Pedal Pad as they cannot be powered by battery.

I get a loud hum when the Sparks are being used, bypassed or not. If I remove them from the amps FX loop, the hum is gone. Here is what I have tried so far:

Removing Sparks from the chain completely and using 1 cable to connect amps FX send to return to each other - no hum.
Plugging the pedal pad into a completely separate outlet (not on the furman) with the pedals in the chain as normal - hum.
Connecting the amps FX loop to an empty loop (loop 7) on the GCX with the Sparks still powered on - no hum.
Using both Guitar In and Feed thru - hum.

I have not had this issue before. I used a G System (4 cable method) with a Spark mini connected to it and before that I just had stomp boxes direct to the amp and amp's FX loop. I had a Micro Amp in the amp's FX loop and never got this noise. The pedals were always powered with this same Pedal Pad.

I saw the humfrees people have suggested on here, but not sure if that will take care of it.

I'm open to any and all suggestions as I would really love this to work out for me.

Thanks.
DSJ

Thanks for the reply, Nyteowl. I figured out the problem and I'm not sure how to fix it. It seems when the GCX and the Furman power strip (which is the M-8X2) are next to each other I get the hum. I removed the GCX from the rack and plugged everything in exactly as before and problem was gone. I put it back in and it's back. I then took the Furman out of the rack and set it aside and turned everything on and all is good. I then moved the Furman closer to the GCX and the closer it got, the louder the hum.

Aside from separating them in a rack, are there any other options? I don't need much rack space as those are the only two things I have racked. I will have my pedal in there as well but only need minimal space for them.

Any suggestions are greatly appreciated.

TIA,
DSJ

Ok, scratch that last post. I found out the culprit. Those damn Eventide power supplies. They are causing noise when next to the send/return FX loop cables. I guess I just have to find a way to keep them away from everything. If there are any suggestions, again, I'm all ears.

DSJ