Hi!
I have a Line 6 Helix LT, and two amps which are Marshall JCM800 2210 and Marshall Valvestate 8100.
My dream rig is a helix as a pedalboard going out into both amps.
I would like to use the EXT Amp out to control both amps at once.
Both are using TRS connections (one is for channel and second for reverb).
How can I connect It without any risk or ground loop issues?
Do i need external device to separate them? Or just a Y cable would work? (i think no)
If Its impossible maybe there is any solution with Midi out?
Please help!
I can build the device myself but I need to have any advice from someone who knows the electrical stuff better than me.