Harmony Central Forums
Announcement Announcement Module
No announcement yet.

Amp channel switching with G Major and GC GCX

Page Title Module
Move Remove Collapse

Conversation Detail Module
  • Time
  • Show
Clear All
new posts

  • Amp channel switching with G Major and GC GCX

    Hi folks:

    If you are going to use a G Major to change channels on an amp with no midi capabilities, do you also need a Ground Control GCX or an RJM Amp Gizmo to do this, or will the G Major be enough to do this?

    Thanks in advance for your help.
    Tom Anderson Drop Top Classic
    Suhr Custom Modern
    Ernie Ball 20th Anniversary Axis
    Warmoth Custom LP
    Charvel ProMod So Cal Strat
    Taylor N24 nylon acoustic
    Godin ACS Slim nylon
    Friedman Marsha Amp
    Cameron CCV
    Friedman 4x12 guitar cab (loaded with Scumback speakers)
    G Major 2 effects processor
    ISP Pro Rack G noise gate
    X2 wireless rack guitar controller
    Voodoo Labs Ground Control Pro

  • #2
    You still need something to change patches. I have a Midi Mouse that does that really well. There are also many other options out there to perform the same task.

    If you look at page 23 (I think) it's talks about controlling the G-Major. Everything you wanted to know and more.

    Member of the SG army


    • #3
      If you use a stereo 1/4" to two mono 1/4" jacks, you can control two functions of an amp.
      The G-Major has two relays in it - one for each of the mono jacks that are plugging into your amp.
      You can simply plug them into the amp and turn the relays on and off on the G-Major and it'll change the settings on the amp.
      You would then use any midi controller to connect to the G-Major to switch patches and have each patch configured for what relay you want on/off.
      Jim Rodgers
      Custom built pedals and mods. Ask me about Line 6 mods!