MPG-70 for Super JX & MKS-70 DIY Kit

MPG-70 for Super JX & MKS-70 DIY Kit

Regular price $650.00 Sale


MPG-70 is a 7U rackmountable/desktop controller for JX-10, JX-8P, and MKS-70 synthesizers.  The MPG-70 features panel knobs and sliders to control all 44 original PG-800 parameters, plus all extra parameters added by the Vecoven firmware and PWM upgrades.  (See for more info about the upgrade)  The MPG-70 can control 2 JX synths at a time, and users can control each synth individually, or simultaneously.  


The module features 96 controls and several buttons, a front faceplate, and a rear sheet metal enclosure.  The enclosure allows the unit to be angled forward and set on a tabletop like a mixing board, as well as be rackmounted.  The controller uses the 6 pin DIN cable to receive power from the JX, or the included wall supply.  


96 controls parameter controls, including all Vecoven 4.x PWM parameters

Full MIDI implementation.  Sends MIDI data via sysex, MIDI CC, or PG-800 protocol.   Midi input merges incoming data to be sent to the JX, so no need to merge the MPG and your MIDI controller to play the JX while editing.

Can be used with stock JX8P, Super JX, and MKS-70 while simultaneously controlling a Vecoven modded JX. 

UPPER/LOWER/BOTH/AUX feature allows editing of upper and lower tones simultaneously or separately, and a separate "aux" channel allows for more JX synths to be added and edited separately.

Patch menu gives user direct and quick access to deep patch parameters including assign mode, glide, key mode, patch detune, chromatic detune, tone select, and more.  

Full featured random tone generator allow tones to be generated randomly, or by selecting a random category such as pad, poly, bells, bass, etc.  Each section of the synth can be masked (not changed) when a random tone is generated.  The amount of randomness can be selected by the user.

ASSIGN A/ASSIGN B/ASSIGN PEDAL - Three assignable controllers allow up to 5 parameters to be controlled simultaneously with one knob/pedal.  User can set the parameter, the max and mix, and whether to invert each layer, allowing for one to do something like turn the filter cutoff up while turning the resonance down and increasing the LFO rate with one control. CTRL A default function on boot-up is a crossfade between mixer channel 1 and 2.  (The assignable controls can be set to anything the user wants)

Intuitive menu browsing and data entry makes creating a patch quick and intuitive.

Incoming mod wheel, breath controller, and aftertouch messages can be routed to any JX parameter.  Each of these controller messages can control up to 5 JX parameters each, allowing for incredibly expressive sounds to be created.

Each slider can have a CC number (0-127) assigned to it, allowing you to send any CC message using any slider.  This allows users to control other synths from their MPG-70.  The assignable CC map can be saved and recalled for future use.  Each user-assigned CC can transmit on any midi channel, and can be set to only transmit on one of the two MPG layers.  (MAIN/AUX/ALL)

Scratch tone generator allows user to select one of several basic starting places for creating new tones.  Manual is also available to transmit the current position of all sliders.

Sliders can be set to output MIDI CC messages that can be easily recorded and played back with any DAW.  

WRITE button has a dialog that checks before the synth is sent the command to save the current tone location.

A bootloader allows future OS updates to be loaded using a MIDI SYSEX file, allowing for easy updating and ability to add features in the future.  

 MPG-70 Owner's Manual V1.0

MPG-70 Build Guide


Full kits include SMD devices.  SMD soldering is required to assemble this product.  The difficulty level of this kit is 6/10.  It's not a good kit to learn SMD soldering on.   The smallest passive part in the kit is 0603.  The finest pitch IC is TQFP64.  This build should be attempted only if you have experience with SMD soldering, reading schematics and BOMs, and good electronic assembly and construction skills.   Full kits include panel, PCB, processor, all SMD components, rear enclosure, cable, power adapter, mounting hardware + screws/standoffs, front panel, all buttons + button caps, all sliders + slider caps, all pots + knobs, rubber feet (for desktop use).  

Includes the parts to build a 3' DIN cable to power the module from the JX.  If you require a longer cable or a wall adapter, please check the ACCESSORIES section of the site.