The Roland JX-3P synthesizer was Roland’s first MIDI synth. The Roland JX-3P is a 6-voice polyphonic, 61 key synthesizer with sawtooth, 50 and 10% pulse waveforms, and a noise generator. It uses a interval-timer DC) & the Roland IR3109 lowpass filter.

Features:

• It has 32 factory programs and user memory for 32 programs
• 128-step, six-part built-in sequencer that can be triggered by sync voltage from external devices such as the Roland TR-707 drum machine.
• 2 DCO’s per voice
• Chorus effect
• 61-key keyboard
• Compatible with Roland’s PG-200 programmer.

The Roland JX-3P Synthesizer was used by Vince Clark, Orbital, The Future Sound Of London, MSTRKRFT, Thomas Dolby and Harold Faltermeyer.

Resources:

• Inque makes a JX-3P MIDI expansion kit
• Wikipediia entry for the Roland JX-3P
• Synthmania has a Roland JX-3P page
• video via mummstylesound