Akai VX600

via this auction

Hmm....
"AKAI VX600 ANALOG 12VCO POLY SYNTH VINTAGE! Rich Warm sound of matrix Analog Synthesiser made in Japan 1988 and it's a cool brother of OBERHEIM EXPANDER

AKAI VX600 is 12VCO(2VCO per 1VOICE) 6 voice polyphonic programmable analog synthesizer it was a last japanese pure analog synthesizer in '80s few quantities were built,so very hard to find even in Japan nowadays I changed LCD uint,backlight,backup battery before this auction so this is your first and last chance to get this monster synth in such a good condition!

this modular matrix analog synthesizer is very similar to OBERHEIM EXPANDER synthesizer AKAI adopted basic schematics made by OBERHEIM, so actually VX600 and OBERHEIM EXPANDER uses same voice chip so basically VX600's sound is same as OBERHEIM EXPANDER sound, very fat and warm! but my opinion,VX600 is more fatter than OBERHEIM EXPANDER especially brass, strings, and lead sounds are really great you can use 12VCO for 6 voice polyphonic or unison all 12VCO to monophonic lead sound(CAUTION!it's very FAT!) and also can use as multi timbre 6 different voices, it's very frexible.

VX600 has variety of modulation source and destination to program sound modulation source including MIDI control change, so you can use MIDI controller to tweak cut off etc.. and very cool feature is external audio in jack so you can synthesize external sounds using analog filter and other parameters

VX600's major problem is dead backlight of LCD screen(due to the ages) but I changed LCD unit and backlight before this acution,so no problem about it I also changed backup battery and restore the factory sounds(few sounds made by myself) so it's perfectly working condition!!

The VX600 is a 6 voice 37 key analog synthesizer featuring traditional concept of modular patching. Two VCOs/voice give you the thick rich sound of analog synthesis to create lush warm string sections,full round "FAT" bass lines, enhanced vocal and rhythm sections, powerful crisp brass sections, and eerie SFX sounds. patch programs are stored in memory program.Each programs can have a maximum of 6 key group splits with each key group having it's own library sound "patch", MIDI channel,and voice allocation. Up to 40 different program combinations can be stored in memory. A special code memory function allows you to play an entire 6 instruments stack from one key.And a dedicated connector jack allows direct connection to the EVI1000 and EWI1000 wind synthesizers.The VX600 combines rich warm analog sounds with the advanced performance control of digital technology to create a powerful new dimension in analog synthesis.(from catalog)"