Roland Super JX-10

Roland JX 10 Image

Released in 1985 the JX-10 (Super JX) combines two individual JX-8P's for an outstandingly warm, rich and analog sound which is still used in many modern studios all over the world. This synth was the first Roland Synth to be fitted with a quality 76 note keyboard with velocity and aftertouch. Two DCO's per voice, two ADSR envelope generators per voice, and a resonant lowpass & non-resonant highpass filters are only the beginning. It has a 12 voice polyphony for a total of 24 oscillators and it is by far one of the most programmable synths of its time! However, as on the JX-8P, knobs and sliders have been replaced by low-profile buttons and a nice LCD display. Although this may look sleek and elegant, it makes editing a chore. Assign parameters to the alpha dial for tweaking, one at a time, or get the optional PG-800 Programmer to provide traditional, hands-on, dedicated sliders for editing the JX-10's parameters.

The JX10 has a Chorus effect and a chase-play Delay function. The chase-play function allows programmable delayed repeats of voices by alternating patches of the upper and lower modules. The simple chorus effect is either off, slow or fast. It has two programmable sliders (if you don't use the PG-800) for some real-time control which can be recorded along with other effects and keyboard modes into one of the 64 Program Patches. This is in addition to its standard 50 preset and 50 user patch memory. A simple sketch-pad 1-track real-time sequencer is also on-board. It stores sequence data directly to an M16C card, or an M64C card for Patch/Tone OR sequence data. The M16C has a capacity of 400 notes, the M64C 1440, according to the manual.

The JX-10 also comes in a rack-mount version known as the MKS-70. It's worth noting that the JX-10 can not be edited via SysEx, however the MKS-70 can which is one reason many have chosen the rack version over the keyboard. The JX-10 can make bulk dumps of its sounds over sysex, but only with (discontinued) Roland M64C RAM cartridges. The JX-10 has been used by Jane Child, Pink Floyd, Duran Duran, Angelo Badalamenti, Yellow Jackets and The Cure.

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97 Visitor comments
June 8, 2010 @ 5:44 am
quote "The MIDI is crap on the JX-10, it barely works. Sadly the JX-10 is not the full ticket, with some glaring flaws.. although capable of some very nice sounds it's certainly not an upgrade to the much better designed JX-8P"

Also alpha wheel is RSI inducing (spin spin spin for little effect), It's oversized for it's use, it's MIDI LATENCY (even with eprom upgrade) makes it far from useful in a studio environment.

In short, IF you are considering a JX10 you would be very wise to consider the rack version (MKS70) FIRST - or even a JX-8P which is a much nicer hands on synth with only ONE known problem (aftertouch) which is an easy fix anyway.
May 31, 2010 @ 6:44 am
JX-3P + JX-8P combo for the same price as 1 JX-10. Will give you 2 distinctive and fun/great sounding instruments. JX-8P does 'most' of what the 10 can (sans layers - and no midi headaches on the 8P; also 8P sounds more vintage due to op-amps), 3P has gorgeous early Roland filter/Chorus. 10 still nice, but over-rated compared to 3P and 8P combo.
May 14, 2010 @ 11:23 am
JX10 is NOT 2 individual JX8P. The thing is that JX10 and JX8P has a different chorus schematic (chorus filtering) which make JX10 sound different from JX8P. So far JX8P sounds fatter than JX10.
MKS-70 has the same chorus as JX10.
April 24, 2010 @ 3:18 pm
I was looking for just such a sound.
Very warm, well-manageable.
Pads and superb strings!!!
April 1, 2010 @ 7:59 am
Almost forgot...If you have a RAM cartridge loaded with sequencer data, fire it back into the JX as patch data.
The results (glitch patches) don´t always make any sense.......but sometimes do!
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Rated 4.33 (626 Votes)

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  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 12 voices
  • Oscillators - 2 DCO's per voice (24 oscillators)
  • Effects - Portamento, chorus, chase-play
  • Memory - 50 preset, 50 user patches, 64 Program Patches, External memory cartridges
  • VCF - One resonant low pass and one non-resonant hi pass filter (which can be used simultaneously)
  • VCA - 2 ADSR envelope generators per voice
  • Arpeg/Seq - 1-track real-time sequencer, 400 note memory (M-32 card), 800 note memory (M-64 card)
  • Keyboard - 76 key keyboard with velocity and aftertouch
  • Control - MIDI
  • Date Produced - 1986
  • Resources & Credits
  • Images from yousenditworks eBay Store.

    Thanks to Ecky Zudrop, JC CUTZ and Matthew Bassett for providing information.

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