Home › Forums › Products › Stompboxes › H9 Power Jack › Reply To: H9 Power Jack
September 29, 2014 at 6:06 pm #137409
In addition to what Alan has said, even if you managed to jam the Boss supply jack into an H9, it still would not work. The Boss, and many other 9V supplies are center-pin negative, whereas the H9 requires center-pin positive. Trying to run off of an inverted poser supply will not function, and risks damaging your stompbox.