Yamaha Synth

Georgy Porgy · Street Demonstrator

I have a yamaha DX 27s programmable synthesiser for sale
it has MIDI in/out
it has non-velocity sensitive keys, but it's a nice bit of retro kit.
it was apparently one of the first midi keyboards yamaha made:
i want to make a quick sale cos i'm getting a smaller, newer basic MIDI controller and have never used the more interesting programmable functions - i still have the original manual. It's a classic! Buy your piece of 1983 here!
email me georgeleigh1984@hotmail.co.uk

Quote from description of a synth in the same range:

The DX7 synthesiser was the first truly digital synthesiser and was released with great commercial success in 1983, selling over 180,000 units. The DX7 used a type of synthesis Yamaha called "Frequency Modulation" developed by Professor John Chowning at Stanford University in the 1970s. In FM synthesis sounds are created by interacting units known as 'operators', which can act as 'carriers' or 'modulators'. Each one is a sine wave that can be shaped and given its own pitch. When connected, one modulates the sound of the other to produce a new pitch and tone. The arrangement of operators and their relative pitches determines the final timbre produced. The DX7 has six operators that can be placed in 32 arrangements ('algorithms'). There's a also host of other parameters and a complex envelope that has two values for each point.

The LCD input controls of the DX7 appeared daunting to most keyboard players used to traditional analogue sliders and knobs. Most users only touched the surface of the synthesis possibilities of the DX7, instead relying on a series of sound card cartridges marketed by Yamaha to overcome the programming complexity.

The Yamaha DX Range
Yamaha DX 21, 27 and 100. The Yamaha DX27, DX27S, and DX100 were the low end versions of the professional Yamaha synthesizers -the DX7. They had smaller 61 note non velocity sensitive keyboards. The sound source was a 4 operator, 8 algorithm FM Tone Generator that could give 8 note polyphony. The DX21,27,and 100 were basically the same machine with slight variations of effects and portability.
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