Feedback Feedback Arm C S M M M M M M M M Clean M M M M M M M M M M M M M M M M Dif M M M M M M M M Dif Mute M M M M M M M M M M M M M M M M Dif Dif Dif Dif Distortion Distortion to1 Arm Wah DS M M M M M M M M Clean M M M M M M M M M M M M M M M M M M M M M M M M Mute M M M M M M M M M M M M M M M M Distortion Distortion 6st Arm