Societa Industrie Elettroniche (SIEL) was an Italian company that made

electronic organ An electric organ, also known as electronic organ, is an electronic keyboard instrument which was derived from the harmonium, pipe organ and theatre organ. Originally designed to imitate their sound, or orchestral sounds, it has since develop ...

s and

synthesizer A synthesizer (also spelled synthesiser) is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis ...

s in the 1980s.

Timeline of major products

* 1979 -

Orchestra An orchestra (; ) is a large instrumental ensemble typical of classical music, which combines instruments from different families. There are typically four main sections of instruments: * bowed string instruments, such as the violin, viola, c ...

(Divide down oscillator network for full poly. Brass/string/key/organ. ARP relabelled it the "

Quartet In music, a quartet or quartette (, , , , ) is an ensemble of four singers or instrumental performers; or a musical composition for four voices and instruments. Classical String quartet In classical music, one of the most common combinations ...

" in the US as they were folding.) * 1980 - Mono (A fairly nice sounding simple 1 DCO, 1 VCF monosynth) * 1981 - Cruise (Combination of “Mono“ and “Orchestra“ in one Synthesizer * 1982 - OR400 / Orchestra 2 (Improvement of Orchestra above. More parameter sliders. This was also marketed by

Sequential Circuits Sequential is an American synthesizer company founded in 1974 as Sequential Circuits by Dave Smith. In 1978, Sequential released the Prophet-5, the first programmable polyphonic synthesizer; it became a market leader and industry standard, use ...

as the Prelude.) * 1984 - Opera 6 (2 DCO divide down from HFO ssm2031 chips, with all analog signal/EG) * 1984 - DK600 (Opera 6 with different artwork. The last EPROM supports MIDI channels/Omni off) * 1984 - Expander (opera 6/DK600 in a table top module. Only dco B tune, Volume, master tune.) * 1985 - DK80 (splittable/layerable dual 6 voice synth with one M112B1 tone and one SSM2045 VCF per half.) * 1985 - Expander 80 (DK80 module) * 1985 - DK70 (One half of DK80 utilizing 8DCO in either single or 2DCO/4 voice.) This was also marketed by Giannini as GS 7010 * 1985 - CMK 49 ( Commodore 64 keyboard) * * 1986 - DK700 (Enhanced DK600 with digital editing instead of knobs.)

External links

Siel Synthesizers Website
Information and photos of synthesizers Musical instrument manufacturing companies of Italy Electronic organ manufacturing companies Synthesizer manufacturing companies of Italy Electronics companies established in 1976 Italian companies established in 1976 Italian brands Companies based in le Marche Electronics companies disestablished in 1986 1986 disestablishments in Italy {{musical-instrument-company-stub

Timeline of major products

See also

External links