The Jupiter 4 can be controlled using various Kenton products in the following ways.
MIDI Retrofit Kit
To play the notes of the Jupiter-4, an internal retrofit is really the only option.
The Kenton MIDI retrofit kit for this model is aimed at controlling the Jupiter-4 using MIDI. In other words MIDI IN only.
For incoming MIDI:
Any MIDI channel can be selected
Notes (MIDI note numbers 36 – 96) – transpose possible
Program change (numbers 1 – 40)
Pitchbend – (bends up and down a fifth)
Filter cutoff frequency (of low pass filter)
Sustain (decay on-off)
Arpeggio clock synced to MIDI clock – variable ratio allowing 1/4 1/8 & 1/16th notes as well as triplets.
Clock the Arpeggiator
If you don’t need to play the notes using MIDI, you can clock the arpeggiator using the Pro-SOLO mkII or a Pro-2000 or even a Pro-KADI, as they all have clock outputs. You will need a 3.5mm to 6.35mm jack cable.
You can also control the filter cutoff frequency (VCF) using a Pro-SOLO mkII or a Pro-2000 mkII. Again you will need a 3.5mm to 6.35mm jack cable.