Home › Forums › Products › Stompboxes › Line 6 Helix to H9 Max MIDI issue › Reply To: Line 6 Helix to H9 Max MIDI issue February 17, 2017 at 11:43 pm #145771 nickroseModeratorEventide Staff Unless you have some unknown to science ground loop, I would have to say it depends on what MIDI messages are being sent to the H9, which are beyond my knowledge or control. Sorry.
