Greetings all

Last weekend I bought the C9 organ pedal through the excellent PMT store in Cambridge (UK).
The pedal itself works great and I am very pleased with it. BUT when it is bypassed, so I can play the clean guitar sound, there is an annoying high pitched whistle coming through in the background. It is masked while I am playing the guitar, but as soon as I stop playing it can be heard again in the background. It almost sounds like leakage from the organ tone generation circuitry which isn’t being muted enough in bypass mode. It sounds worse if I happen to be using an overdrive pedal as it is obviously being boosted.

Is there an internal setting control within the unit to adjust or prevent this?

thanks

Paul