Home › Forums › Products › Stompboxes › Line 6 Helix and the H9 Stereo vs Mono › Reply To: Line 6 Helix and the H9 Stereo vs Mono February 12, 2017 at 11:14 pm #145751 nickroseModeratorEventide Staff If you want total mono, you should remove both in2 and out2. But, if you're going to mix out1 and out2, you could leave them in.
