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Roland The Sound And Control of a JX-3P, The Size of a Book, JX-03

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Roland The Sound And Control of a JX-3P, The Size of a Book, JX-03

The Roland Boutique JX-03 module continues the legacy of the JX-3P synth. The original model was launched when button-driven interfaces were popular, so it was designed to give immediate access to preset sounds. It was actually highly programmable though, 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. We’ve also added some extras not present in the JX-3P including new waveforms, expanded DCO range and cross modulation options. You can even slide the JX-03 into the optional K-25m keyboard unit for a self-contained, go-anywhere synth experience.

  •     Ultra-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 (4xAA) 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


    JX-3P Sound. Built-In Controller.


    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 battle-tested JX engine.

    Develop Your Ideas with A 16-Step Sequencer


    The onboard 16-step sequencer is a sonic scratchpad that lets you try out new ideas without bringing lots of gear – it can even be used without a keyboard. And 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.

    Works With 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 can be tilted 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. This is especially great when controlling the JX-03 from a larger external keyboard. You can even edit the sound from the master module and control both units. Great for realtime filter sweeps and envelope adjustments.

    Battery or USB Bus Power

    Some of the best music is made away from the studio, so the module 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 into Your DAW


    The built-in USB port also functions as a high-quality 24bit, 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.



  • Maximum Polyphony 4 voices
  • User Memory 16
  • Preset Memory 32


  •     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


  •     Chorus
  •     Delay

Step Sequencer 16 step 16 pattern

Nominal Input Level  INPUT jack: -0 dBu


  •     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 500mA (USB Bus power)
  • Expected battery life under continuous use: Rechargeable Ni-MH battery: Approx. 6 hours

    * This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use.


  •     Owner's Manual
  •     Leaflet "USING THE UNIT SAFELY"
  •     Alkaline battery (AA, LR6) x 4

Options (sold separately)

  •     Keyboard unit: K-25m

Size and Weight

  • Width 300 mm 11-13/16 inches
  • Depth 128 mm 5-1/16 inches
  • Height 46 mm 1-13/16 inches
  • Weight 950 g  2 lbs 2 oz

Additional Information

Short Description

Roland The Sound And Control of a JX-3P, The Size of a Book, JX-03

Ships Free Yes
Alternate Barcode No
Alternate Barcode No
Location of this item San Francisco, CA
Name Roland The Sound And Control of a JX-3P, The Size of a Book, JX-03
GTIN 761294507827
Condition new
Manufacturer Roland