Yamaha EX-1 1977/1978 White

I copied and pasted this description from one of the few sale postings out there for an EX-1 because I didnt even know where to start, but everything said still stands with mine:

Known as the theater version of the ultra rare Yamaha GX-1,
this beautiful instrument packs all the sonic possibilities of a
polyphonic synthesizer and standard organ into one
gigantic and unique package.

The Yamaha EX-1 is the theatre version of the GX-1. 

The EX-1 is easily programmed for three overall patches using a slide-out front panel, and has polyphonic glide and, on the solo keyboard,
a unique side-to-side movement for modulation.

The EX-1 features two fully polyphonic keyboards (with organ tabs and polyphonic analog synthesizer sounds) which can be slaved together, a top keyboard monophonic analog synthesizer which can be slaved to the upper organ manual, and a monophonic analog synthesizer bass played from the
included pedals, or slaved to the lower keyboard.

Also included is an analog drum machine, auto chord accompaniment section, and arpeggiator.

This YAMAHA EX-1 unit is in great condition.

Manufacturing date maybe 1977-1978.

All the knobs, sliders, keys and pedals work perfectly.

Also included are two TX-III tone cabinets, bass pedals and an original matching bench.

The features of this synthesizer are much too extensive to list here.

There are a few videos on YouTube that fully detail all of the capabilities of the EX-1 Just search for "Yamaha EX-1" and prepare to be amazed.

When released in 1977, the EX-1 had a $35,000 price tag.

That's $148,000 today when adjusted for inflation.

I am located in SW Michigan and will definitely entertain delivering the unit within a few hundred miles, with a deposit of course.

I am totally open to offers as well.