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March 10, 2017 at 4:29 pm #145906
gkellum
Participant

It's possible with MIDI or an expression pedal to mute an H9.  So, to be on the safe side, please disconnect those…

Also could you double check that you're going into input 1 and out output 1?  Plugging into input 2 without anything connected to input 1 will cause problems.