Sequential Circuits Split-Eight SCI Vintage Analogue Polyphonic Synthesiser / Pro-8

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  • Regular price $1,234.00

Sequential Circuits Split-Eight 

The Split-Eight, also marked as the Pro-8 is an awesome programable polyphonic synthesiser which uses the Curtis 3394  chips. The keyboard features splits and layers, all of which can be saved with patch data. Choose between 8 voice polyphony with 1 oscillator per voice, 4 voice polyphony with dual oscillators per voice, 2 voice polyphony with a mega 4 oscillators per voice, or the unison mode which is just a fat 8-voice solo. The Split-Eight It is a great and inexpensive way to get your hands on a user friendly, vintage, 8 voice Sequential polysynth for your professional or home studio.


  • This is a used unit.

  • This unit is in good condition for its age. It shows some small scratches and scuffs however nothing major. Most wear occurs on the wooden sides which could be sanded back and re painted if the buyer chose to. Please see photos.

  • This unit has been serviced. The service included a deep clean inside and out, a new memory battery, cleaned all key contacts and switches. 

  • After being serviced the synthesiser was thoroughly tested and the factory patches have been reloaded. 

  • This unit is ready to plug and play within Australia. 
    If you purchase from overseas please ensure you have the correct step-up transformer before powering on this unit. 


  • Polyphony - 8 voices

  • Oscillators - 8: 1 per voice (sawtooth, triangle and square)

  • LFO - 1: programmable rate (0.25 - 20 Hz), depth, triangle, square waveforms; route to VCO, VCF, or pwm

  • Filter - 24dB/octave 4-pole lowpass resonant filter; cutoff, kybd, ADSR env

  • VCA - 2 ADSR Envelope gens

  • Keyboard - 61 keys (no velocity or aftertouch)

  • Memory - 64 patches, 64 performances

  • Control - MIDI IN/OUT (2-parts), SysEx dumping

  • Date Produced - 1985

Return Policy:

Returns will only be accepted for manufacture defects / faulty items. Please contact us if you have any problems with your purchase and we will strive to work it out with you.

The Lofi Music Team have been providing professional audio solutions, restoration and repairs in the Sydney and Central Coast area for over ten years. Please see our very positive feedback and do not hesitate to contact us with any questions about this item or any other awesome synths you find in our store!