Fractal FX8 (possible ground loop ?)

[Bash_Man]

Hey everyone,
So I noticed recently my FX8 started to cause what appears to be a ground loop from the output of the FX8 to the Input of the amp.

Couple of troubleshooting steps I did:

1. Noise is there even if I bypass the FX8.
2. Noise goes away if I plug directly into the amp even if the fractal is still in the amp's loop (inline or bypassed).
3. Bypassing loop or removing loop cables, the noise remains.

I am using Hum buster cables, however I built those myself based on wiring diagram here:.
https://wiki.fractalaudio.com/wiki/index.php?title=Humbuster

Going to check all my cables again and make sure all the solder points are good.

If everything passes and still have the noise, anything else I can check?

Any help would be appreciated.

Thanks

Thanks

 

[JackBootedThug]

It can be a fuckin nightmare….good luck. I have no idea but I was having an issue with my setup and a cheap Pyle unit handled mine.

 

[Bash_Man]

It can be a fuckin nightmare….good luck. I have no idea but I was having an issue with my setup and a cheap Pyle unit handled mine.

Is that one of those ground iso type units?

 

[JackBootedThug]

Yup…

 

[JackBootedThug]

You might get a 3 prong to 2 prong adapter and use that on your axe power cord. Might fix it homie.

 

[Bash_Man]

Anyone else with any input/thoughts ?

I reset system parameters as per finding on fractal forum, but didn't seem to make a difference.

I have humbuster cables built with the TRS end plugging into the Fractal and TS end plugging into the amp.

From further troubleshooting, if I plug the guitar directly into the amp and leave FX8 in the amp's loop, noise goes away. If I bypass the loop and remove one of the connections into it (return or send), noise goes away.

Thanks