OK I just got mine to work, I was using the Helix app and I had the gain set High on my StageSource L3t, and master volume low on Helix. I do this because I played with this for a month before I figured out that with master out on Helix high, and L3t low, it sounds thin...so I went the other way, a completely different rig now...anyway...as soon as I turned up the master on the Helix, my mic worked...I am going to have to put more than a preamp on the mic though...rather than lower all my gain settings on my presets..a nice clean amp...well problem solved for me...thang God I DID NOT want to send this back...I am about as signal chain challenged as it gets, but it's fun learning. Sometimes lol.