Never seen a Dingwall with 7 knobs before. Wonder what they do besides tone and volume and pickup selection. Maybe one is a pickup blend knob?
It's MIDI equipped
MIDI plus piezo pickups in the bridge. You have a blend for magnetic/piezo, bass/mid/treble controls, pickup blend, synth volume, and master volume. Plus the MIDI program up/down switch and a switch to select pickups/MIDI/both.