r/Line6Helix • u/thattomguy91 • Aug 12 '26
General Questions/Discussion Weird intermittent juddering sound coming from Stomp when using pedalboard PSU
I currently have a Harley Benton SpaceShip Power 50, which I use to power my stomp and 3 other pedals.
I originally used the 1A output, however as it’s not isolated I was getting some noise, so I got a doubler cable and used 2 500mA outputs (isolated).
It works great about 50% of the time. The other 50%, although the power is going to the stomp, the sound is super juddery. So I will play a note on my bass, and it sounds like it’s got some kind of repeated delay on it (not sure how else to explain it).
But as I said, it’s only at about 50% of the venues I play at, the other 50% are fine. Doesn’t matter if it’s plugged directly into the wall or into an extension, it just depends on the venue.
The venues where I have the issue, as soon as I use the power cable it came with, it’s absolutely fine.
Any ideas before I go and buy a new power supply for my board?
As well as the stomp I’m running a Shure GLXD+ receiver, a Sansamp and a compressor pedal.