Voodoo Lab

Hi, everyone. Hope you all are fine.

I have a rack system with 2 ground control Pro connected (one for presets , the other for IA) and 3 GCX.

After several years with no troubles, significant pop noise related to switching appeared. I don´t remember changing anything special.

I have tested each pedal separtely in only one gcx, always with the same result from loop 1 regardless the pedal and the GCX Unit. I have changed instrument, line and MIDI cables.

The noise appears with just one pedal (any of them) without using the other loops and regardless the loop used.

I also have tested:

Guitar In- Guitar out - Loop (1 to 8, each of them only one used) IN and Loop (1 to 8, respectively each of them) OUT to preamp or amp without any connected pedal in the loop.

Feed thru - Feed thru - Loop (1 to 8, each of them only one used) IN and Loop (1 to 8, respectively each of them) OUT to preamp or amp without any connected pedal in the loop.

Always the same noise

I have experimented with both GCP separatedly (when pressing different IA or changing presets affecting different loops) and also have this pop noise.

The GCP and GCX are powered with AC 9V adaptors (2000 mA).

Any idea where the problem might be ?

Thank you very much in advance

Jose M.

Thanks a lot !!!!

It works !!!

1. Yes , a mistake on drawing . Loops 5 and 6 are connected

2. No led loops active on GCX when recall a preset

3. To hear the preset loop , justo to switch the button/s from 1 to 8 and led loops active as they are selected. No need to go to other menus from point 2.

I post a worksheet .jpg about the way it is arranged.

As I said, it works when pressing instant access buttons of each device or a combination of them , but when MIDI joins in scene only POD PRO does.

Hello,

This is my equipment:


Rack (Korg A3, Yamaha SPX 900 , Eventide H3000, POD pro, TC 22900 SDD 2000 and SDD 3000).

All but last connected via MIDI to Ground Control Pro and GCX audio switcher.

MIDI GCX OUT - A3 IN - A3 THRU- SPX IN- SPX THRU- EVENTIDE IN-EVENTIDE THRU- TC 2290 IN-TC 2290 THRU- SDD IN-SDD THRU- POD PRO IN.


4 presets/bank.

Devices named and midi channel assigned.

When setting the presets, all devices are apparently well connected to MIDI, as preset number changes on the same device as I do it on Ground control Pro.
However I only hear the sound of POD pro during the setting or when playing the whole GCP preset.

8 instant access buttons work perfectly.

Any idea of what I,m doing wrong?

Thank you.