Casio SD Synthesizers
Videos
Casio's SD Synthesizers were a late-1980s line of analog synthesizers featuring a resonant filter. SD synthesis was traditional DCO-analog synthesis, with the main difference being that some of the SD
The Casio HT3000
Korg Poly-800
Videos
The Korg Poly-800 is an 8-voice analog synthesizer released by Korg in 1983. Its initial list price of $795 made it the first fully programmable polyphonic synthesizer that sold for less than $1,000.
Casio SD Synthesizers
…wheel. The HZ-600 was a 61-key, 8-note polyphonic basic-MIDI synthesizer without initial- or after-touch, and functionally was essentially an advanced Korg Poly-800. Like the Poly-800, all voices (in each channel) shared a single VCF, meaning the VCF envelope would retrigger when a new note was played, affecting…
Korg Poly-800 with filter modification