Teisco SX-400

Teisco SX-400 Image

The SX-400 is a solid 4-voice analog synth. It is most comparable to the Roland Juno 6, but has a better expression-section. The aftertouch and handwheel can trigger vibrato, cutoff and pitch at the same time, variable in speed and sensitivity. Available effects include an Ensemble (chorus) and a Portamento glide-effect. The sub & noise OSC and ensemble-switch are cool and make the SX-400 good for techno and acid too. Unfortunately there are no arpeggiators or sequencers.

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9 Visitor comments
March 7, 2011 @ 11:28 am
All the synth parts in this song were made using a Teisco SX-400, hence the name:

Jay B
October 7, 2009 @ 12:42 pm
I really wish clueless would refrain from posting "information", but such is the curse of the internet. I own two SX-400s and can confirm that it sounds nothing like the TB-303 or the MS-10. The sound of the SX-400 compares favourably to a Juno-6 or a Jupiter-4 for that matter, it has sweeter sounding filters but slower envelopes than the two aforementioned. It has 3 LFOs (not just 2) where the 3rd LFO resides in the keyboard control section. It also has an envelope auto-trigger function clocked by one of the LFOs and a touch-sensitive keyboard. The rare and unusual triple-chorus ensemble effect is a great bonus and can be used for a lot more than just imitating a Solina string machine, in fact it adds magic sparkle to just about any sound. Finally, the different voice modes makes it a very versatile machine, it can be configured as a 4-note polyphonic single oscillator synth or a duophonic dual oscillator synth or a monophonic 4 oscillator synth for full on oscillator mayhem.
July 11, 2009 @ 6:56 am
Its a steadfast competitor to Syntechno TeeBee, supposed to be best for 303 sounds, or MS-10 and Rebirth. it delivers dazzling 303 sounds and other basses and leads, cheese italo-strings are another speciality of this great synthesizer. The estimated value here seems too low, don't know.
April 18, 2009 @ 5:29 pm
best synth ever made thanks to its cheasy sound1
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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 - 4 voices
  • Oscillators - (4): 4 in Mono-mode, 2 in Dual-mode, 1 in Quad-mode, fine tuning and range for each OSC. Saw, pulse, tri, (16' 8' 4' 2') waveforms.
  • LFO - (2): 1 with frequency, delay, saw, pulse, tri; 1 simple sine LFO
  • Filter - 24 dB/oct resonant, self-oscillating, LFO-Mod, EGI-Mod with reverse mode.
  • VCA - ADSR, LFO-Mod
  • Keyboard - 49 keys w/ aftertouch
  • Memory - 8 factory, 8 user
  • Control - CV/GATE
  • Date Produced - 1981 - 1982

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