The sound is distorted.

(1) Is the [MASTER LEVEL] control set to an appropriate position? Adjust the [MASTER LEVEL] control so that the master channel indicator lights up to the orange section at the peak level.

(2) Is the [TRIM] control set to an appropriate position? Adjust the [TRIM] control so that the channel level indicator lights up to the orange section at the peak level.

For details, see “Basic operations (mixer section)” in the operating instructions.