Hello everyone new to the forum,
I would like to know how can I connect two tube amps both in 4CM to my helix. I have one 6505+ and an ENGL invader that I would like to use with my helix. I tried using helix’s fx loop 1 for the peavey--> output L and helix’s fx loop 2 for the ENGL--> output R. At this point everything sound fine at low volume, but every time I increase the volume using the big volume knob I get a loud feedback noise that is not present when only one amp is connected to the helix, maybe I’m connecting something wrong.
Thank you for your help