Incorrect Curve, Compression level.
Signal voltage maxes out around 2-3V when loaded on the input.
Incorrect wiring.
I'm wondering about Incorrect wiring.. Do you think it could be ground is not connected? I've checked and I have grounded both pin 15 & 16 on the ribbon cable, but maybe I should trace this? I'm wondering what comes to your mind for incorrect wiring?
Sincerely.. Alex.