via this auction
"Offered for sale is the Kawai SX-240, a classic very rare and unique sounding dual DCO multi-waveform Analog Synthesizer (made in 1984) with SAW, SQUARE, PULSE (2nd LFO), BRASS (Ring Modulation) waveforms, 8-voices of polyphony, an additional SUB Oscillator, Poly8/4/mono modes, a super-warm, lush, on-board chorus/ensemble effect, 8-SSM 2044 filters (used on PPG-Wave 2.2, Korg Mono/Poly, Korg Trident, Korg Polysix, Kawai SX-210, Kawai K3 etc), a LFO that can be routed everywhere in the DCO, VCF and the VCA, MIDI In/Out/Through, Portamento, Glissando, a 8-digits LED screen for editing the parameters and the option of being placed in Split or Dual patch modes. In Split mode you can assign two patches to be played in a split on the keyboard. In Dual mode two patches can be played at the same time for a rich, warm and layered sound, not very common in Analog Synthesizers. It has also a built-in, real time 1,500 note sequencer and chord memory. This is a very useful synth!Kawai SX-240 has a great rich, lush and unique analog sound to it that can't be reproduced by today's modern synthesizers. Cuts through the mix in a unique way, and due to its rarity will not end up sounding like other analogs of the era. Sonically it is somewhere between Korg Polysix and Roland Juno-60."
