Roland Boutique JX-03 Synthesizer Module

Roland Boutique JX-03 Synthesizer Module

Roland Boutique JX-03 Synthesizer Module

B&H # ROJX03 MFR # JX-03
No Longer Available

Product Highlights

  • 4-Voice Synth Modeled After the JX-3P
  • Analog Circuit Behavior Modeling
  • Compatible with Optional K-25m Keyboard
  • 24 Parameters from the PG-200 Controller
  • Chain Two JX-03 Modules for 8 Voices
  • 24-Bit / 44.1 kHz Stereo IN/OUT via USB
  • Battery-Operated (4x AA) or USB powered
  • Built-In Speaker
Show moreShow less

Roland JX-03 overview

  • 1Description

The Boutique Roland JX-03 Synth Module continues the legacy of the JX-3P synth. The original model was launched when button-driven interfaces were popular, and it was designed to give immediate access to preset sounds. It was also highly programmable however, especially when used with the optional PG-200 controller that added 24 rotary knobs for instant sonic sculpting.

The limited-edition 4-voice JX-03 inherits all 24 knobs from the PG-200, as well as the distinctive JX tonal character. Roland has also added some extras not present in the JX-3P including new waveforms, expanded DCO range and cross modulation options. The JX-03 can be slid into the optional K-25m keyboard unit for a self-contained, portable synth experience.

Features at a Glance:
  • Compact recreation of the iconic JX-3P synthesizer
  • Retains the feel, sound character and user interface of the original
  • Front panel includes all 24 knobs from the original PG-200 controller
  • Adds several updates not found on the original JX-3P, including extra waveforms for the LFO and both DCOs, along with extended DCO range
  • Chain mode allows two JX-03 to function as one 8-voice module
  • Highly portable for mobile music making
  • High-quality construction with metal front panel
  • Dual ribbon controllers for pitch bend, modulation, and sound preview
  • Battery-operated (4x AA) or USB powered
  • 24 bit / 44.1 kHz stereo IN/OUT USB audio interface
  • Built-in 0.5W mini-speaker for instant enjoyment
  • Compatible with optional K-25m mini-keyboard


Recreates Sound and Functionality of the JX-3P
Often described as a forgotten classic, the JX-3P was all about instant access to big sounds, with a simple button-driven interface rather than lots of knobs and sliders. When used with the optional PG-200 controller however, the power of the highly programmable engine was revealed. The new JX-03 module recreates the panel layout of the PG-200, including all 24 knobs, giving direct and instant access to the versatile synth architecture
Additional Sound-Shaping Options
Like the other members of the Roland Boutique range, we also added a few subtle improvements that weren't found on the original models. The JX-03 benefits from extra waveforms and extended range for both DCOs as well as extra waveforms for the LFO. The second DCO also gets extra cross modulation options. These additions further expand the sound creation possibilities of the JX engine
16-Step Sequencer
The on-board 16-step sequencer is a sonic scratchpad that lets you try out new ideas without the need of an external sequencer. It can even be used without a keyboard. If there's no keyboard connected, the ribbon controller lets you preview the sound, making it an ideal way to program patches quickly and easily
Optional K-25m Keyboard Unit
The JX-03 works especially well with the K-25m, an optional 25-key velocity sensitive keyboard that takes your music making to the next level. Once docked in the keyboard, the module's front panel adjusts to three positions for convenient access to the knobs and sliders
Chain Mode
The original JX-3P was a powerful synth featuring 2 digitally controlled oscillators for each of its 6 voices. The JX-03 features a chain mode that allows you to connect two JX-03 modules using the MIDI ports and create one, 8-voice synthesizer. Adding additional modules adds another 4 voices of polyphony with each module. The two synths can be controlled together from an external keyboard controller, and you can edit the sound of both units together from one master module. This is ideal for filter sweeps and envelope adjustments
Battery or USB Bus Power
Some of the best music is made away from the studio, so the Roland Boutique series runs on 4 x AA batteries, ready for when inspiration strikes. Alternatively, you can power the JX-03 via USB Bus power
USB Audio Interface for Direct Recording
The built-in USB port also functions as a high-quality 24-bit, 44.1 kHz audio interface, for a fast, simple and reliable way of recording directly to your DAW application. You can keep your favorite patches and sequencer patterns safe too, via the USB data backup function
In the Box
Roland Boutique JX-03 Synthesizer Module
  • 4 x Alkaline Battery (AA, LR6)
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Roland JX-03 specs

    Polyphony 4 voices
    User Memory 16
    Preset Memory 32
    Controllers VOLUME knob
    Ribbon controllers 1, 2

    DCO-1 Section
    RANGE select knob
    WAVE FORM select knob
    FREQ MOD LFO switch
    FREQ MOD ENV switch

    DCO-2 Section
    RANGE select knob
    WAVE FORM select knob
    CROSS MOD select knob
    TUNE knob
    FINE TUNE knob
    FREQ MOD LFO switch
    FREQ MOD ENV switch
    LFO DEPTH knob
    ENV DEPTH knob
    Polarity switch

    VCF Section
    SOURCE MIX knob
    HPF CUTOFF knob
    LPF CUTOFF knob
    RESONANCE knob
    LFO MOD knob
    ENV MOD knob
    ENV MOD polarity switch

    VCA Section
    MODE switch
    LEVEL knob

    LFO Section
    WAVE FORM select knob
    DELAY TIME knob
    RATE knob

    ENV Section
    ATTACK TIME knob
    DECAY TIME knob

    CHORUS Section
    CHORUS button

    BANK A, B, C buttons
    PATCH NUMBER 1-16 buttons
    MANUAL button

    Power switch
    Effects Chorus
    Step Sequencer 16 step
    16 pattern
    Nominal Input Level INPUT jack: -0 dBu
    Connectors PHONES jack: Stereo miniature phone type
    OUTPUT jack: Stereo miniature phone type
    INPUT jack: Stereo miniature phone type
    MIDI: IN, OUT connectors
    USB port: MicroB type (Audio, MIDI)
    Power Supply Rechargeable Ni-MH battery (AA, HR6) x 4
    Alkaline battery (AA, LR6) x 4
    USB bus power
    Current Draw 500 mA (USB Bus power)
    Expected Battery Life Rechargeable Ni-MH battery: Approx. 6 hours under continuous use (This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use)
    Options Keyboard Unit: K-25m
    Dimensions 11.8 x 5.0 x 1.8" / 300.0 x 128.0 x 46.0 mm
    Weight 33.5 oz / 950.0 g
    Packaging Infodyxrcerbwudtwdeyqsvar
    Package Weight 3.2 lb
    Box Dimensions (LxWxH) 13.858 x 7.008 x 2.992"

    Roland JX-03 reviews

    Be the first to review this item

    Roland JX-03 Q&A

    Roland JX-03 accessories

    See any errors on this page? Let us know.