Why am I buzzing?

tbm Frets: 586
20 Dec, 2024
Hey folks, I wonder could someone have a look at this pic and tell me why I’m getting a buzz.

https://www.dropbox.com/scl/fi/lynw8e0vay5bb5undvh4i/Photo-20-12-2024-19-04-49.jpg?rlkey=cv9eh855309d13jek2j6h0u1i&st=20ho2ynq


The chain is a/b/y box >  stereo looper > stereo
out to 2 amps. 

No buzz when going a/b/y box to amps, or direct into looper and out to amps. When  put them together, buzz in both amps. 


Comments
I presume the A/B/Y doesn't have an isolated second output?

You could modify a cable to remove the ground connection from the plug at one end (mark the cable so you don't mistake it for a normal cable in future) and use that to replace one of the connections between A/B/Y and looper.

No guarantees but it may sort out any ground loop issues.


Is this setup to allow you to have separate looped parts out of two amps?
tbm Frets: 586
20 Dec, 2024
Hey, thanks! 

Yeah. Bunch of pedals. Splitter box, looper, amps. Guitar amp and bass amp. Using a Bass VI. I swore I had it working a few months ago, but I revisited it there this week and I’m getting that buzz.  

So it’s probably a ground issue yeah. That makes a certain amount of sense.
Sporky Frets: 31530
20 Dec, 2024
Is the buzz 50Hz hum, or something else? 
Just a thought, but I had a very weird issue years ago using my JamMan SoloXT looper in stereo - that turned out to be down to a specific jack plug, so have you tried changing cables? (specifically, with a different brand of plug)

I posted about my issue here ...