To adjust the input gain on an H9:
Press and hold the HOTKNOB button and Right Footswitch simultaneously for a few seconds to enter System Mode.
Turn the Knob until [UTILITY] is displayed.
Momentarily press the HOTKNOB button.
Turn the Knob until [INGAIN] is displayed.
Momentarily press the HOTKNOB button.
Turn the Knob to adjust the gain between 0dB and +18dB.
Press and hold the HOTKNOB button and Right Footswitch simultaneously for a few seconds to exit System Mode.
Remember, when you’re sending signal to the H9, you want the green LED to be solidly lit.
