This Kawai K1 Synthesiser is in great working order, and comes complete with its original power supply. Here's a quick spec...
 
Kawai K1 Digital Synthesizer
The Kawai K1 Synthesizer is a classic late‑1980s digital instrument that earned cult status for its distinctive lo‑fi sound and powerful waveform‑layering capabilities. Released in 1988, the K1 provided an affordable alternative to high‑end digital synths of the era, delivering unique textures that became a staple of early techno, house, industrial, and electronic music. [en.wikipedia.org], [gearnews.com]
8‑Bit Digital Synthesis Engine: Built around 256 PCM waveforms, including 204 additive‑derived single‑cycle waves and 52 sampled acoustic sounds, giving the K1 its unmistakable gritty character. 
Four‑Source Sound Layering: Each patch can combine up to four waveforms, allowing rich pads, aggressive digital timbres, metallic textures, and evolving soundscapes. 
16‑Voice Polyphony & Multitimbrality: Offers up to 16 voices of polyphony and 8‑part multitimbral operation, making it well‑suited to layered performances and MIDI‑based sequencing. 
Performance‑Ready Keyboard: Features a 61‑key keyboard with both velocity sensitivity and aftertouch, providing expressive control despite its streamlined architecture. 
Distinctive Digital Tone: Known for haunting pads, sharp organs, industrial textures, FM‑style basses, and raw percussive sounds that cut through a mix. 
Classic Design & Expandability: Equipped with pitch bend and modulation wheels, joystick control, MIDI In/Out/Thru, and expandable memory via optional RAM cards. 
Highly Collectable Vintage Synth: Available in keyboard, rackmount (K1r), and module (K1m) formats, the K1 remains a favourite among collectors and producers seeking authentic 1980s digital sound. 
Whether you’re crafting atmospheric pads, gritty techno textures, or exploring classic digital synthesis, the Kawai K1 Synthesizer delivers distinctive sound and character that still inspires decades after its release.