The CS-30 is a classic subtractive, analog synthesizer. The sections of the synth are those that will be familiar to anyone used to analog programming. However, Yamaha didn't make it easy for the beginner. The layout of the synth is less than intuitive, and you often lack some sort of visual guidance to figure out what is going on. Eventually you get the hang of it. You can see for yourself now.
The CS-30 is a synth that has a dual set of everything, beginning with the oscillators and ending with two separate outputs. Therefore the synth may be played as two synths in one box, if you desire so. This opens for some very interesting stereophonic patches, based on for instance slight differences in envelope times, or on the use of different modus operandi of the filters.
But the two sets of synth modules also interact, in interesting, unexpected, and sometimes illogical ways, and this is where it becomes really interesting. There is a wealth of modulation possibilities. Some of these are unusual, and have tremendous effect.
Also, the modules of the two sets are not entirely identical, meaning that each set of modules has its own quirks, and when the two quirky sets interact, you just get something even quirkier.
If this isn't enough, the CS-30 has a number of control voltage and trigger inputs and outputs, as well as an external signal in.
And if this isn't enough yet, then there is also an internal 8-step sequencer to make things even more exciting. You sure have a lot of goodies in this package!

***Excellent conditions,Clean,recently serviced ***

*** Original Power 100v needs voltage converter to 220/230v