Product Description
The EM Custom Loopbox4 is a compact four-loop slave MIDI looper that enhances the routing flexibility of MIDI-controlled pedalboards. It features high-quality relays and a true bypass circuit, allowing seamless integration of non-MIDI effects without compromising tone.
Musically, the Loopbox4 enables efficient management of multiple effect loops, making it easy to switch pedals in and out of your signal chain. Its learning mode simplifies the assignment of MIDI switching commands, facilitating quick setup and operation.
Housed in a durable steel case, the Loopbox4 is designed for space-saving functionality, allowing you to offload switching tasks to a remote or master controller while keeping your pedals organized in separate loops.
Technical Specifications
| Voltage | 9V DC, center negative |
| Circuit Type | analog |









