Roland JX-10

Roland Super JX (Roland JX-10)
ManufacturerRoland
Dates1986-1989
PriceUS$2,750
UK£1,800
JP¥298,000
Technical specifications
Polyphony12-voice in 'WHOLE' and 'SPLIT' mode, 6-voice in 'DUAL' mode
Timbrality2-part ('SPLIT'/'DUAL' modes)
Oscillator2 DCOs per voice/4 in 'DUAL' mode. Waveforms: SAW/SQUARE/FIXED PULSE/NOISE. Oscillator sync, xmod.
LFO1 sine/square/random=noise with delay and rate
Synthesis typeAnalog Subtractive
Filter24dB/oct resonant low-pass, non-resonant high-pass
Attenuator2 ADSR Envelopes/4 in 'DUAL' Mode. They both have 3 levels (and '0') of "Key Follow"
Aftertouch expressionYes
Velocity expressionYes
Storage memory50 preset tones/50 user tones/64 patches, optional M-64C memory cartridges holding 50 tones
Effectschorus, delay ('chase play' using voices, not a 'real' delay effect)
Input/output
Keyboard76 keys
Left-hand controlPitch bend Lever with upward moving controlling LFO
External controlMIDI for playing notes/PG-800 programmer for sound editing
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The Roland JX-10 Super JX is a 12-voice analog synthesizer keyboard produced by Roland Corporation from 1986 to 1989, along with a rack-mounted version, the MKS-70. For nearly 30 years, it was the last true analog synthesizer made by Roland and has been critically acclaimed as one of their classic analog instruments. In 2015, Roland once again started producing analog synthesizers beginning with their JD-XA and JD-Xi keyboards as analog/digital crossover synthesizers. The design on the JX-10 is essentially two Roland JX-8P synthesizers put together, with a 76-note velocity-sensitive keyboard with aftertouch. It also includes features not found on the JX-8P, including a simple 1-track sketchbook sequencer and a delay effect (which works like a "MIDI delay" by delaying one tone rather than acting as a true DSP delay effect). However, the JX-10 is not exactly the same as "two JX-8P's" because the chorus is not identical to the JX-8P (hence the chorus sounds different between the JX-8P and the JX-10 with single patches). The JX-10 also has a slightly different amplifier section as well as different electronic components which further distinguish its sound from its predecessor, the JX-8P.