Synth DB

The Ultimate Synthesizer Database


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Jen Electronics | SX-2000


The SX-2000 Synthetone is an analog monophonic synthesizer designed for use with an organ (it was meant to sit on top of the organ). This type of late 1970's synthesizer design (with the knobs, sliders and switches in front of the keyboard) was also seen in the Roland SH-1000, SH-2000, Minitmoog and Elka Soloist. The SX-2000 has 7 presets which include: synthy, harpsichord, flute, clarinet, violin, trumpet and piano. Presets are selected via the red switches towards the left of the keyboard.

Luckily it has plenty of simple to tweak analog synth functions to manipulate those boring old preset sounds. It features a single VCO, switchable over four octaves and equipped with four waveforms (sawtooth, square, and two rectangular). The VCF is a simple low-pass filter with cut-off and resonance (emphasis) and can be modulated by the LFO or one of 3 preset envelope effects. The VCA can also be modulated by these 3 preset envelope effects which include: repeat (which constantly repeats AD envelope), ASR (with sustain), AD (without sustain). The LFO can modulate the oscillator or the filter with either square or triangle waveforms. Finally a Portamento effect is on-board for those elastic synth sounds. Nice wood end-cheeks and unique Italian sound make this rarity worth a look, if you happen to find one.

BrandJen Electronics
Engine TypeAnalog
Voices (max)1
LFOSquare or triangle waveforms; intensity and speed; can modulate VCO or VCF
Engine DetailedOne VCO (sawtooth, square, 2 rectangular waveforms); 4-octave range (32', 16', 8', 4')
Filter (VCF)1 VCF with cut-off, emphasis; 3 preset envelope settings: Repeat, ASR, and AD.
Envelope (VCA)3 preset envelope settings: Repeat, ASR, and AD
Memory7 presets which include: synthy, harpsichord, flute, clarinet, violin, trumpet and piano.
Key typeKeys
Produced:1978 - 1983
Legend: Obvious Y: Yes, N: No, N/A: Not Applicable
VCO Voltage Controlled Oscillator DCO Digital Controlled Oscillator
LFO Low Frequency Oscillator Sub Sub Oscillator
VCF Voltage Controlled Filter VCA Voltage Controlled Amplifier
Velocity As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. Aftertouch Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel.
Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise.

Manuals, patches etc.


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