Greetings. I am in the middle of a major rework of my Helix system. I have added 3 outboard FX units and an expression pedal. FX loop 1 works perfectly - FX 2 I cannot test at the moment, it is a talkbox, and the third FX loop is a really old vox wha pedal that works, kinda. When this pedal gets activated it drops overall output by 80 % - the wha sound right, just real quiet. The last thing I have added is an expression pedal - I am using the Ernie Ball VP Jr, and have a regular TS cable going from Exp 3 to the output jack on the unit - this is not working at all. According to other posts, this should work as wired.
I have just finished wiring all this, mounting everything into a flight case, and am starting the troubleshooting. IF you have any advice - this would be most helpful. I have band practice in about 6 hours, and it sure would be nice if these issues were resolved.
Thanks.