“In almost playable condition, as a few keys don’t work – unsure whether this is something internal, physical, digital etc. It was “gifted” to us in this condition, and seems to have about three screws holding it all together – not the greatest of signs. But it does fire up and play through the headphone socket, although I haven’t got any MIDI gear to test in and out functionality so bear in mind I can only verify that “yes it kinda works”
It’s also not in the cleanest nick, with a few scratches and what have you, also the top of the joystick is missing, although I can’t work out what it even does. The pitch wheel and mod wheel do work fine, I can say that.” Click here to visit listing on eBay
“Store Trade. Works great. Minor scuffs from normal usage. Comes with aftermarket power supply.” 
“Perfect condition
“Kawai K1m (K-1m) Desktop Digital Synthesizer Module. Condition is “Used”. Tested, working. Shipped with USPS Priority Mail Large Flat Rate Box.
“Kawai K1m K-1m Desktop Digital Synthesizer Module. Condition is “Used”. In great shape” 
“Kawai K-1 Synthesizer, with stand, Good cosmetic condition, plays as should,” 
“Kawai K1m K-1m Desktop Digital Synthesizer Module W/ Kawai Card Ram DC-8. Condition is Used. Please see all photos very closely for condition and description. You get exactly what is shown in the photos.” 
” For sale is a rare Kawai K1m. I do not have a power supply for it so I have not been able to test it yet. It is sold as-is untested.
“Kawai K1r Digital Synthesizer Rack Module w/ power adapter. Works and sounds good. Condition is Used.” 
“Kawai K1r 1u rack mount synthesizer with the rare MM-16 programmer. Original Kawai power supply included for the K1r, and a new aftermarket power supply included for the MM-16. Internal battery on the K1r tested good and was left in place. The MM-16 had a new battery installed. Both are fully functional with no issues.
“Vintage 90s Kawai K1 Digital Vector Synthesizer Synth Keyboard MIDI K 1 in original Box. Condition excellent and working. Does not have the manual. Power supply included. Super clean, seldom used and in the original box. Hard to find in this condition.” 
“This is for a KAWAI K1R Rack mount Digital Synthesizer Module.
“Kawai K1m K-1m Desktop Digital Synthesizer Module Tested Working Used. Condition is Used. Shipped with FedEx Ground or FedEx Home Delivery.
“Kawai K1r vintage classic digital synthesizer rack module – kept in my smoke-free / pet-free home studio. This vintage rack synthesizer is in nice shape for its age (these units are from 1988), everything works great on it, and even the display is still brightly lit. This is the rack version of the famous K1 keyboard model – and has great late ’80s sounds similar to Roland D-50, Korg M1 and similar of that era. Comes with the power adapter, plus a copy of manual and cd with sounds.” 
“Kawai K1m ( module/desktop) in perfect condition with original box.
“KAWAI K1R Digital Synthesizer Module (rack version of famous K1 synthesizer).
“KAWAI K1 SYNTHESIZER
“This auction is for a Kawai Digital Synthesizer 61-Key Keyboard K 1 II. This keyboard is used but still in good working condition. Comes with the carrying case. And a power cord.” 
“Kawai K1m K-1m Desktop Digital Synthesizer Module Tested Working Used. Condition is Used. Includes power adapter.I don’t have the manual.” 
“Excellent sounding Kawai K1 with many 3rd party sounds. There are extra banks of sounds on the internet.
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“Kawai K1r Digital Multi Dimensional Synthesizer module model k1r Not Tested. Condition is Used. Buy for parts or fixing it could work just but i ha e not tested shows some wear the chip thing is bent alittle” 
“Fully functional Kawai modular synthesizer. DC jack replaced, and solder joints on 1/4″ & MIDI jacks reflowed. Works perfectly. Original A/C adapter included.” 
“Kawai K-1 61-Key Digital Synthesizer Keyboard. This one comes with a after market power supply only. It does work. Every single key was tested. See video link below. The high bidder will own this synth”