Home › Forums › Products › Stompboxes › H9 Hiss in front of amp – Video › Reply To: H9 Hiss in front of amp – Video October 22, 2015 at 8:30 pm #141234 danisev2001Member “Are you able to lift the grounds from the cables going to first input 2, then output 2, and see if this makes a difference ?” What you mean? How can I do this?
