Reply To: H9 Pre/post noise?By lordradish / September 1, 2017 Home › Forums › Products › Stompboxes › H9 Pre/post noise? › Reply To: H9 Pre/post noise? September 1, 2017 at 3:00 pm #147085 lordradishParticipant I did this, and did find a bad cable. After replacing it, the hum was quieter, but still there and too loud. Are there other things that could contribute to this?