One of our musicians wants to use his passive guitar and then his active guitar plugging into the same DI box. What needs to change on the SQ-6 mixer (in addition to volume slider), if anything?
Duplicate the guitar channel on the SQ (same DI input going to two separate SQ channels).
While the gain control is the same for both (set and leave), use the digital trim to adjust one of the channels to achieve optimal input gain.
Now you’ve got individual EQ control and signal flow for each guitar without having to adjust anything mid show.
Just remember to mute the guitar channel that you are not using at the time!