This is the one-of-a-kind, vintage, Kawai K5000W Advanced Additive Workstation.  It is a hard-to-find synthesizer workstation, with a unique sound generation engine, and it is the top of the line of Kawai's K5000 series of synthesizers.  The K5000 series updated the famous K5 synthesizer tone generator with the unique additive harmonic synthesis approach.  The ADD Tone Generator contains 32 source generators.  PCM samples can be mixed with the additive sources, for unique, sounds that cannot be made by other synthesizers.  In addition to the additive capabilities, the K5000W contains a second sound generator that utilizes subtractive PCM synthesis.  It is fully General MIDI compatible, and includes advanced digital effects processors providing for four individual effects (chorus, delay, distortion, etc., in addition to reverb and a graphic EQ).  This high-end workstation model includes the disk drive, 40 track MIDI Sequencer, and the Auto Phrase Generator which uses a track from the sequencer to create a complete orchestration in any of over 100 musical styles. 

As you can see from the pictures, this beauty is in excellent condition, without blemishes or dings.  The keyboard is straight and flat, with great action.  It works and sounds great.  It includes the original owner's manual, MIDI Implementation manual, box, and the 3 original discs (System Disc, APG Data Convert Disc, and Supplemental Data Disc).  This gently-used synthesizer has been in a smoke-free/pet-free home studio, and has not been moved around.  I am the original owner and it is being sold as-is.