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 However, as on the JX-8P, knobs and sliders have been replaced by low-profile buttons and a nice LCD display.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
July 10, 2014 @ 6:31 am
No synth is truly a "do all" stand alone, except for, say a WORKSTATION, which this is NOT. Stop the comparison and learn the difference between an envelope and a filter! The JX10 IS huge, cumbersome, slow enveloped and I guess barley able to fire itself up. BUT, once all warmed up, it STILL commands a prominent place in many professional studios. From strings, to brass pads to just huge classy sound PLUS ANALOGUE synthesis, this synth is a BEAST. It did in the 80's what your VA modern VST preset can only attempt to emulate.
And boy, do they ever! Keep searching my friend.
May 13, 2014 @ 3:37 am
I collaborated with the beta testing project for the Roland JX-10 new firmware and now my JX-10 is running 3.0. The synthesizer section remained untouched in this release, but the overal behaviour of the machine was improved and speeded up.
For 50$ or 40€ it's worth.
May 11, 2014 @ 6:43 am
Ronald, there is someone working on the JX and will be releasing a firmware upgrade/ transformation that is explained in this link
I am super excited to get my hands on the firmware upgrade and can't wait for the hardware mods he has been working on.
May 9, 2014 @ 7:37 pm
As with most of the "vintage" synths, they're pretty lame, boring and useless in the face of modern technology. They're too limited, bulky, heavy and can't serve as standalone keyboards. You can buy this heavy limited monster but you will be bored mindless within a short period. All these old D50's, Juno's, Oberheims, JX's, DX's etc have very limited sound capabilities. I got off the vintage bandwagon a long time ago. Every synth I bought I grew out of quickly. Don't waste your time. Stick to newer stuff that YOU ACTUALLY NEED
May 3, 2014 @ 11:05 am
I just recently got one of these wonderful sounding synths, and I got to say it can sound as good as Jupiter 6's and even 8's. it is just as good for me as my juno 106 with the kiwi 106 upgrade. don't judge a book by it's cover! this synth has a big block v8 under the hood. such deep and rich bottom low end, and even up in to the high high's it's crisp and clear and not annoying as some synths of that era can be. if you love your rolands, get one if get your hands on one, you will be happy you did. pure roland heaven, I love the jx10
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Rated 4.32 (631 Votes)

  • Check Price
  • 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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