The Roland Boutique JX-03 is a compact 4-voice synthesizer module released in 2015 as a limited-edition run. It uses Roland’s Digital Circuit Behavior (ACB) technology to model the exact sound and behavior of the 1983 Roland JX-3P synthesizer and its companion PG-200 hardware programmer.


Engine & Architecture

  • Polyphony: 4 voices.
  • Sound Engine: Analog Circuit Behavior (ACB) modeling.
  • Oscillators: 2 DCOs per voice. Includes Sawtooth, Pulse, Sine, Noise, and a unique Square wave.
  • Modulation: Cross-modulation options (Sync, Metal, and two Ring Modulation modes).
  • Filter: 24dB/octave low-pass filter (VCF) and a non-resonant high-pass filter (HPF).
  • LFO: 1 dedicated LFO with Sine, Triangle, Sawtooth, and Random waveforms.
  • Envelopes: 1 ADSR envelope shared across the filter and amplifier.

🎚️ Hardware & Interface

  • Controls: 24 rotary knobs and sliders inherited directly from the vintage PG-200 controller layout.
  • Touch Strips: Dual ribbon controllers for pitch bend, modulation, and sound previewing.
  • Enclosure: Highly durable metal front panel with a hard plastic underside.
  • Portability: Compact footprint measuring 300 mm x 128 mm x 46 mm (11.8" x 5.0" x 1.8").
  • Weight: 940 grams (approx. 2 lbs) including batteries.

🎵 Sequencer & Effects

  • Sequencer: 16-step, 16-pattern internal sequencer.
  • Effects: Built-in Digital Chorus (reproducing the iconic JX-3P chorus effect) and a dedicated Delay effect.
  • Chain Mode: Allows linking two JX-03 modules together via MIDI to double the polyphony to 8 voices.

🔌 Connectivity & Power

  • Audio Out: Stereo 3.5mm (1/8") mini-jack output.
  • Audio In: Stereo 3.5mm (1/8") mini-jack input for routing other gear through the unit.
  • Headphones: Stereo 3.5mm (1/8") mini-jack.
  • MIDI: Standard 5-pin MIDI IN and MIDI OUT ports.
  • USB: Micro-USB port for MIDI, 24-bit/44.1kHz audio interface capabilities, and power.
  • Power Source: Runs on USB bus power or 4 x AA alkaline/Ni-MH batteries.
  • Docking Options: Fits directly into the optional Roland K-25m 25-key keyboard bed or the DK-01 boutique dock.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

Listed2 months ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • JX-03 Boutique Series Synthesizer Module
Finish
  • Black
Categories
Year
  • 2016 - Present
MIDI I/O
  • USB MIDI
  • MIDI Input
  • MIDI Output
Analog / Digital
  • Digital
Polyphony
  • 4 Voices

Product safety information may be available here.

BWG

Toronto, Canada
Joined Reverb:2024

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