Here’s a vintage late-1980s Kurzweil 1000 SX String Expander rack mount synthesizer. This particular example, serial number 88020206, is in very excellent all original condition.The 1000 SX is part of a series of rack mount versions of the K1000 24-note polyphony synthesizer. The award winning samples and sounds, recorded by the Boston Symphony, are accompanied by layers of programs and effects. While the 1000 SX is limited to mostly string “Soundfiles”, each one of these expander modules can be further upgraded with even more sounds and samples. The Transcendent Man truly outdid himself with this series.