Casio CZ synthesizers

The Casio CZ series is a line of low cost phase distortion synthesizers Casio began producing in 1984, using digital synthesis to imitate the sound of analog subtractive synthesizers without the expense of analog filters, which made the instruments affordable for amateur musicians. Each model offered eight waveforms along with digitally controlled oscillators, waveshapers and amplifiers, an eight stage envelope generator and a configurable low frequency oscillator for modulation. Casio released eight CZ models during the 1980s, starting with the CZ-101 in November 1984, one of the first fully programmable polyphonic synthesizers sold for under $500, with roughly 68,500 units built, undercutting rival FM synthesizers such as Yamaha's DX21 and DX100 that cost nearly twice as much. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/