Make sure your input is not distorted. Or do is the a limit asked on the output? The routing description might help.
Yes, thats my image. I think I fryed the microphone with my talkbox. Its a new mic så I have warranty. I got a extreme feedback-loop. The tube came close to the microphone membrane. The mic is different now, much less sensitive. I have a back-up microphone so its no disaster. Thanx. This forum is great, very, very fast replies.