Home › Forums › Products › Rackmount › H7600 set-up for -10 Guitar FX Loop usage. › Reply To: H7600 set-up for -10 Guitar FX Loop usage. March 20, 2008 at 6:04 pm #117203 ArmandoParticipant Yes, I realize this but is there a way to set the machine for -10 operation or is it fixed at +4 only?