Issues with mc6 pro omniports and deco v2

Morningstar Gear MC Pro Series MIDI Controller
1

Hi everyone

I try to control a 2nd Deco v2 with the 2nd omniports of my MC6PRo.

My first Deco is pluged in my first omniports and it works well.

As soon as I plug my 2nd TRS jack, I get a massive buzz in my amp.

Is someone get an idea to help me ?

2

Sounds like a ground loop. The Strymon TRS MIDI pedals do not have isolation built into the MIDI Inputs.

Are all 3 devices (MC6 PRO + 2 deco) powered via daisy chain or isolated power outputs?

3

Hi James

indeed it’s a ground loop and I found a solution. Thanks for your quick answer.