Home › Forums › Products › Stompboxes › H9 Pre/Post Signal Issue – Weak Left Channel, Overmodulating, Hum › Reply To: H9 Pre/Post Signal Issue – Weak Left Channel, Overmodulating, Hum
A number of amps seem to have a lot of gain on the effects loops – would this explain what you are seeing ? This means that you are sending a low level guitar signal to the pre, and a high level effects loop signal to the post.
If you are not using pre-post, you will presumably use a single mono jack for both in and out, meaning that the levels on each channel will be the same. The level would be less when using the guitar.