Multibox

Utility

MIDI thru box and TRS converter splitting one signal to three 5-pin outputs plus phantom power.

RJM Music Technology was founded in 2003 by Ron Menelli, an engineer and guitarist who saw unmet needs in guitar MIDI control. After releasing the Amp Gizmo in 2005, RJM became known for cutting-edge MIDI controllers like the Mastermind GT and PBC series.

The Multibox is a multi-function MIDI utility device handling several roles simultaneously: splits one MIDI signal to three standard 5-pin outputs, converts between 5-pin and TRS MIDI formats, provides phantom power via 7-pin connections, and converts bidirectional MIDI into separate input/output jacks. Four TRS jacks are individually configurable for different MIDI types.

Built for pedalboard integration with modern MIDI-capable pedals. Accepts 9-12V AC or DC (either polarity) at 50mA minimum via BOSS-type barrel connector. Made in USA with 3-year warranty.

Demo Videos

Specifications

Power9-12V

Current Draw~50mAest.

Polaritycenter-negative

MIDIYes

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RJM

Multibox

Utility

MIDI thru box and TRS converter splitting one signal to three 5-pin outputs plus phantom power.

Built for pedalboard integration with modern MIDI-capable pedals. Accepts 9-12V AC or DC (either polarity) at 50mA minimum via BOSS-type barrel connector. Made in USA with 3-year warranty.