HX Stomp + Jad Freer Capo Power Issue?

[mikegrovesmusic]

Hi Everyone, 

 

Bit of a weird one that I can’t get my head around. 
 

I’m having an issue while using a Jad Freer Capo and HX Stomp together. 

Both are being powered through a Strymon Zuma. The HX Stomp is using the VL HX current doubler as it’s supposed to. The Capo is being powered properly too. 

 

When both pedals are engaged at the same time there’s this whirring electrical noise (ground loop issue?)

If I switch the Capo off and leave the HX Stomp on, the noise goes away. If I switch the HX Stomp off and leave the Capo on, the noise goes away too. If I use either pedal on its own but in conjunction with other pedals there are no issues. 
 

If I use the original power supply for HX Stomp, plugged in to the same 4 way (and mains plug socket) as the Strymon, and have both the Stomp and Capo switched on, there is no longer an electrical noise and everything is fine. 
 

Obviously this solves the problem, but I would much prefer to have everything on one power supply. 
 

Each of the power supply ports on the Strymon are isolated, so I thought this shouldn’t be a problem. Clearly I’m wrong. 
 

Any thoughts or ideas to potentially fix this or just to explain what is actually happening would be great. 
 

Thanks, 

Michael 
 

 

 

[Jakester]

I found the Stomp could be a little sensitive to being run off the same power supply as other pedals, even if it's getting the correct supply. I use a CIOKS Sol with their own recommended Stomp cables and I found if there was another power-hungry pedal off the output next to it, it didn't like it (even though they're supposed to be isolated). Swapped the outputs around a couple of times and suddenly it was fine, so might be worth trying that? 

 

Or you could try an pedal noise isolator like the Joyo ZGP and see if that helps? https://www.joyoaudio.co.uk/joyo-zgp-guitar-effect-pedal-filter-isolated-output-power

[mikegrovesmusic]

23 minutes ago, Jakester said:

I found the Stomp could be a little sensitive to being run off the same power supply as other pedals, even if it's getting the correct supply. I use a CIOKS Sol with their own recommended Stomp cables and I found if there was another power-hungry pedal off the output next to it, it didn't like it (even though they're supposed to be isolated). Swapped the outputs around a couple of times and suddenly it was fine, so might be worth trying that? 

 

Or you could try a pedal noise isolator like the Joyo ZGP and see if that helps? https://www.joyoaudio.co.uk/joyo-zgp-guitar-effect-pedal-filter-isolated-output-power

Thanks for the advice, I’m glad I’m not the only one who’s experienced something like this. 
 

I’ve just tried swapping around the outputs and unfortunately it hasn’t helped. 

I’ve ordered a new power cable for the HX Stomp, to see if that helps. If not I’ll have a look at the Joyo.
 

Thanks!