DISC Roland JX-03 Sound Module with K-25m Keyboard

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  • Compact Recreation of the Iconic JX-3P Synth
  • 24 Controllable Synth Parameters
  • Extra DCO and LFO Waveforms
  • 24 Bit / 44.1 kHz Stereo USB Audio Interface
  • Includes Roland K-25m Keyboard for Roland Boutique Synths

DISC Roland JX-03 Sound Module with K-25m Keyboard

The Roland Boutique JX-03 Sound Module reignites the heritage of the iconic JX-3P synth and produces a huge range of impressive synth sounds with rotary encoder and button controls. Also featuring expanded DCO range, cross modulation options and expanded waveforms the JX-03 offers a traditional synth tone with incredible shaping capabilities. Also featuring a high quality USB audio interface (24 bit/44.1 kHz), chain operation mode, built in 0.5 watt speaker and the ability to be USB or battery powered the Boutique JX-03 is the best way to achieve the iconic JX-3P synth tone in the studio or on the move. This bundle also includes the Roland K-25m keyboard for Roland Boutique synths.

Product Ref: 64776

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Iconic JX-3P Sound & Built-In Controller

Designed to offer the huge sound associated with the classic JX-3P synth, the JX-03 provides the incredible tones of the JX-3P but with an innovative control surface based around the panel layout of the PG-200. Incorporating 25 knobs, 5 switches and 21 buttons the JX-03 offers advanced control giving you unlimited tonal shaping capabilities.

Additional Sound Shaping Options

Not only did Roland ensure the Boutique JX-03 could deliver the huge sound and control of the renowned JX-3P synth but they also added a range of new features such as extra waveforms for the DCO and LFO as well as an extended range and extra cross modulation options from the DCOs. These additions further expand the sound creation possibilities of the battle-tested JX engine.

16 Step Sequencer

The built-in 16 step sequencer lets you try out an array of ideas on the go without the need of a keyboard. Furthermore the ribbon controller allows you to preview the sound making programming patches quick, simple and effortless.

Chain Operation Mode

The JX-3P was renowned for its 2 digitally controlled oscillators for each of its 6 voices. With JX-03 you can use the innovative chain mode which allows you to connect two models using the MIDI in/out ports to create one powerful 8-voice synthesizer. Every additional unit chained adds 4 further voices of polyphony perfect for controlling from a large external keyboard.

High Quality USB Audio Interface

If you want to record directly into your chosen digital audio workstation the Roland JX-03 can also be used as a high quality audio interface via the USB connection. With a resolution of 24 bit / 44.1 kHz you can seamless record into your DAW. You can also store your patches and sequencer patterns with the USB data backup function meaning you will never lose your killer sounds again.


  • 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 (included)


  • Synth Type: Digital
  • Inputs: 1 x 3.5mm Jack, MIDI In
  • Outputs: 1 x 3.5mm Jack, 1 x 3.5mm Headphones, MIDI Out
  • Additional Connections: 1 x USB, 1 x ILock
  • Speaker: 1 x 0.5 Watt Mini Speaker
  • Audio Interface Resolution: 24 Bit / 44.1 kHz
  • Touch Sensitive Strips: 2
  • Rotary Knobs: 24
  • Switches: 5
  • Buttons: 21
  • Power: USB Bus Powered or 4 x AA Batteries (Sold Separately)