Home › Forums › Products › Stompboxes › H90 loud hiss and hum › Reply To: H90 loud hiss and hum August 21, 2023 at 9:54 am #173497 joecozziModeratorEventide Staff Do you have USB hooked up to the pedal while you’re playing it? Also, can you describe your signal flow? Do you have any other pedals in the chain? Are you going straight into the amp, etc?
