Decibel Eleven Switch Doctor Operation Manuals page 11

CONNECTION EXAMPLES (CONT'D)
Fig.4 - Expanded setup using Switch Doctors with DB11 Loop Expander.
This setup is capable of 8 pedal loops and 2 control function switches (or 6 pedal loops and 4 control function switches), 3 MIDI Program
Changes, 8 MIDI Control or Note messages, and 1 MIDI Expression pedals. The Loop Expander is completely controlled through the Switch Dr.
interface and transparently adds another 4 loops to the Switch Dr. setup. The Loop Expander can be located underneath the pedals or
pedalboard, or it can be located remotely in a rack. Alternatively, the Loop Expander can be wired to handle pedals in the amp's effect loop,
providing 4 loops in front and 4 loops in the effect loop.