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Home Forums Products Stompboxes H90 High Pitched Noise Reply To: H90 High Pitched Noise


If I may, can I jump in with just one question/clarification. To the OP, you say you have the USB connected. Is the noise only when the USB is connected? Also, I’m assuming the other end is connected to a computer? If this is the case have you tried making sure the computer is plugged into the same outlet or power strip as everything else.

Please excuse me if I missed this already being made clear.