Classic vintage Gibson Maestro Model W3 Sound System For Woodwinds effects processor. Good condition with rare Pedal Board and 15-pin connector. This is the top mode.
This is a cool old effect system developed for woodwinds, but sound incredible with Trumpet, guitar, bass, and keyboards (synthesizers) too. Includes w-3 unit, foot pedal and the case.
You can find a pick up for your trumpet MPC on Ebay