PX Add On JP4

PX Add On JP4

  • Deep-Sampled Custom Patches from The Jupiter-4
  • 25 Custom Instruments
  • 16 Programs featuring A/B Modes (32 preset layers)
  • 1,042+ Samples
  • 1.3 GB Download Uncompressed
  • Delivered by Download
  • Prophet X or XL Hardware Synth Required
  • The Prophet X or XL must be running OS v2.1+
  • The latest operating system can be found HERE
  • ** Not compatible with Kontakt

PX Add-On 6: JP-4 (Jupiter-4) 

Making its debut in the late 70’s, the Jupiter 4 (JP-4) was the first true polyphonic synth produced by Roland®. Despite its smaller form, single oscillator per voice, and maximum of four voice polyphony, the JP-4 still found success in a time when competition between synth developers was at its fiercest. The synth was quickly adopted by electro-pop artists and, in time, by a range of other genres, making its rich low-end analog sound synonymous with the era. 

The introduction of digital control of analog processes, dubbed “Compuphonic,” made it possible for the JP-4 to retain its characteristically raw sound while offering era-defining features, such as pitch stability and preset recall. It was the combination of these features that quickly led to the Jupiter line of synths earning a place in history, used and revered by many artists of the time, including Duran Duran, Spandau Ballet, Gary Numan, The Human League, and Simple Minds. 

The distinct character and true essence of the JP-4 has been captured beautifully in the 25 instruments and 16 custom designed preset programs (each with A/B Layers) for you to enjoy with all the advanced capabilities of the Prophet X & XL. The Prophet X/XL gives you easy and immediate access to instruments and program presets, so you can freely combine, stack, and manipulate any of the included sounds with the factory content of the Prophet to truly make them your own. 

We hope you enjoy this truly vintage experience on your Prophet X & XL! 

*Roland Jupiter-4 (JP-4)® is a registered trademark of Roland Corporation. 







  • Pulse 
  • Pulse Sat 
  • Pulse Sat Plus 
  • Pulse Sub 
  • Pulse Unison 
  • Saw 
  • Saw Sat 
  • Saw Sat Plus 
  • Saw Sub 
  • Saw Sub Sat 
  • Saw Unison 
  • Square 
  • Square Sat 
  • Square Sat Plus 
  • Square Sub 
  • Square Sub Sat 
  • Square Unison 
  • String 
  • String Sat 
  • String Sat Plus 
  • String LFO 
  • String LFO Fast 
  • Force 
  • Force Sat 
  • Force Sat Plus 


Bank A1 (P73-88) 

  • A1/P73 – Big Bass A & B 
  • A1/P74 – Expi Pad A & B 
  • A1/P75 – Lite Pad A & B 
  • A1/P76 – Movement Pad A & B 
  • A1/P77 – Park Arp A & B 
  • A1/P78 – Sky Arp A & B 
  • A1/P79 – LFO Arp A & B 
  • A1/P80 – York Arp A & B 
  • A1/P81 – Vibe Bass A & B 
  • A1/P82 – Low Bass A & B 
  • A1/P83 – Lift Bass A & B 
  • A1/P84 – Jupiter Stab A & B 
  • A1/P85 – Prog Stab A & B 
  • A1/P86 -Dead Stab A & B 
  • A1/P87 – Life Stab A & B 
  • A1/P88 – Plan Pad A & B 


  • Size: 1.3 GB (Uncompressed) 
  • Files: 1,034 Audio Files 
  • Resolution: 16 bit / 48 kHz (Down-Sampled from 24 bit / 96 kHz) 
  • 25 Deep-Sampled Original Instruments 
  • 16 Hand Designed and Stackable Presets with A/B Modes