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[[File:Solid State Micro Technology for Music logo.png|right|150px]]Usually referred to by the the acronym '''SSM''' which can mean '''Solid State Micro Technolgy''', '''Solid State Micro Technolgy for Music''', '''Solid State Music Technology''' or '''Solid State Microelectronics''' depending on which documentation one looks at.<ref name="emwssm">Electronic Music wiki:[http://electronicmusic.wikia.com/wiki/SSM SSM]</ref>
 
== The company ==
Founded in 1975<ref name="ss">[http://gyraf.dk/schematics/VCAs_Ben_Duncan.pdf ''VCAs Invesigated part two''] by Ben Duncan, Studio Sound, p.60, Jul. 1989</ref> by John Robert Burgoon,<ref name="hae">{{Cite web |url=http://www.anchor-electronics.com/about_us/about_us.html |title=History of Anchor-Electronics |accessdate=2012-12-18 |archiveurl=[https://web.archive.org/web/20130103111420/http://www.anchor-electronics.com/about_us/about_us.html |archivedate=2013-01-03History |deadurl=yesof |df=Anchor-Electronics] }}(archived)</ref> Solid State Music Technology (SSM) originated out the [[Wikipedia:Homebrew Computer Club|Homebrew Computer Club]], an early 1970s Silicon Valley computer hobbyist group.<ref name="emwssm" /> It was one of two companies that in the mid-1970s designed and sold [[analog]] [[integrated circuit]]s used in [[synthesizer]]s, the other was [[OnChip Systems|Curtis Electromusic Specialties]].
 
SSMs first products were computer boards for the now-obsolete [[S-100 bus]] standard, including some boards intended for music applications. As [[Dave Rossum]] told the story in a 1981 interview with [[Polyphony (magazine)|Polyphony magazine]], an engineer named [[Ron Dow]] had come to [[E-mu Systems]] looking for funding to develop a [[voltage controlled amplifier]] on a chip. However, the proposed design would not have been compatible with the [[modular synthesizer]]s that E-mu was selling at the time, so they turned Dow down. Dow then went to SSM and they agreed to fund the project and market it. The result was the first synthesizer-specific integrated circuit, the SSM2000 VCA. The following year, Dow came back with an idea for an improved design that was compatible with E-mu's systems and E-mu became involved with SSM in the design, the result was the SSM2010.<ref name="emwssm" /><ref name="dri">[http://www.siliconbreakdown.com/rossum_interview.htm Interview of Dave Rossum] by Jay Lee in Polyphony Magazine Nov/Dec 1981</ref>
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== Equivalents ==
Functionally equivalent ICs have been produced by [[ALFAAlfa RPARRpar AS]], [[Coolaudio International Ltd.]] and [[Sound Semiconductor Inc]].
 
== SSM ICs ==
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* [[SSM2164]] – Low Cost Quad Voltage Controlled Amplifier
* [[SSM2300]] – 8 channel [[Multiplex|multiplexed]] [[sample and hold]]
<ref name="cem">{{Cite web |url=http://curtiselectromusic.com/Customers_and_Instruments.html |title=Curtis Electromusic |accessdate=2012-12-18 |archiveurl=[https://web.archive.org/web/20130502132536/http://curtiselectromusic.com/Customers_and_Instruments.html |archivedate=2013-05-02Customers |deadurl=yesand |df=Instruments], Curtis Electromusic }}(archived)</ref><ref name="sd">[http://www.sequencer.de/specials/synthesizer_chip.html Synthesizer Database] by Moogulator</ref><ref name="ssmds">SSM data sheets</ref>
 
== Synthesizers using x SSM ICs ==
=== Prebuilt ===
* [[Akai VX600]] - 9 x SSM2300
* [[Buchla 296e]] – 8 x SSM2020
* [[Crumar Bit One]] – 6 x SSM2044 in early models
* [[Crumar Performer B]] – x SSM2040, x SSM2050 <!-- amounts? -->
* [[Stratus]] – 1 x SSM2020, 1 x SSM2055
* [[Crumar Trilogy]] – 1 x SSM2020
* [[Division 6 Filtare SEIII]] - <!--?-->
* [[Doepfer A-105 24db x SSM Low Pass Filter]] - 1 x SSM2044
* [[E-mu Systems Drumulator]] – 2 x SSM2044
* [[E-mu Systems SP-12]] – 2 x SSM2044
* [[E-mu Systems SP-1200]] – 2 x SSM2044
* [[E-mu Systems Emulator]] – 4 x SSM2044
* [[E-mu Systems Emulator II]] – 8 x SSM2045
* [[E-mu Systems Emax]] – 4 x SSM2300, 8 x SSM2047
* [[Ensoniq SDP-1]] – 6 x SSM2044
* [[Ensoniq ESQ1]] – 4 x SSM2300
* [[Ensoniq SQ-80]] – 4 x SSM2300
* [[Fairlight CMI II]] – 8 x SSM2045 in later versions
* [[Hohner P120N]] - 2 x SSM2044
* [[Hohner PK250]] - 2 x SSM2024
* [[Kawai/Teisco K3]] & K3m – 6 x SSM2044
* [[Kawai/Teisco SX-210]] – 8 x SSM2044
* [[Kawai/Teisco SX-240]] – 8 x SSM2044
* [[Korg Monopoly]] – 4 x SSM2033, 1 x SSM2044
* [[Korg Poly 61]] – 6 x SSM2056
* [[Korg Poly 6]] – 6 x SSM2044, 6 x SSM2056
* [[Korg Trident]] – 9 x SSM2044
* Oberheim DPX-1 - 1 x SSM2013, 8 x SSM2045, 5 x SSM2300
* [[Octave Plateau Voyetra 8]] – 8 SSM2024, 8 SSM2044
* [[Octave ThePlateau CatVoyetra SRM]]8 – 18 SSM2040x SSM2024, 8 x SSM2044
* [[PPGOctave EVU]]The Cat SRM – 81 x SSM2044SSM2040
* [[PPG Wave|PPG Wave 2.2 & 2.3]]EVU – 8 x SSM2044
* [[RSFPPG KobolWave|PPG ExpanderWave I2.2 & 2.3]] – 18 SSM2040, 2x SSM2050SSM2044
* [[SequentialRSF CircuitsKobol ProphetExpander 5]],I Rev– 1 &x 2 – 10 SSM2020SSM2040, 11 SSM2030, 5 SSM2040,2 10x SSM2050
* Sequential Circuits Prophet 5, Rev 1 & 2 – 10 x SSM2020, 11 x SSM2030, 5 x SSM2040, 10 x SSM2050
* [[SIEL DK600]] – 6 x SSM2024, 2 x SSM2031, 6 x SSM2044, 6 x SSM2056
* [[SIEL DK-80]] – 2 SSM2045
* [[SIEL EXDK-80]] – 12 x SSM2045
* [[SIEL Kiwi]]EX-80 – 61 SSM2024,x 2 SSM2031, 6 SSM2044, 6 SSM2056SSM2045
* [[SIEL Opera 6]]Kiwi – 6 x SSM2024, 2 x SSM2031, 6 x SSM2044, 6 x SSM2056
* [[SimmonsSIEL SDS5]]Opera 6 – 16 x SSM2024, 2 x SSM2031, 6 x SSM2044, 6 perx moduleSSM2056
* [[Simmons MTX9]]SDS5 – 1 SSM2300x SSM2044 per module
* Simmons MTX9 – 1 x SSM2300
* [[Solton Programmer 24]] - 1 SSM2044
* [[Solton SM100]]Programmer –24 6- SSM2045,1 12x SSM2056SSM2044
* [[Solton TS3]]SM100 -– 26 SSM2300x SSM2045, 12 x SSM2056
* [[Solton TS4]]TS3 - 2 x SSM2300
* Solton TS4 - 2 x SSM2300
* [[SRM Synthesizer Octave Cat]] - <!--?-->
* [[Steiner EVI]] – SSM2040?
* [[SyntecSteiner Banana]]EVI – 6x SSM2044SSM2040?
* [[VoyetraSyntec 8]]Banana -– 6 8 SSM2024, 8x SSM2044
* [[WaldorfVoyetra Wave]]8 –- 16 8 x SSM2024, 8 x SSM2044
* Waldorf Wave – 16 x SSM2024
 
=== DIY projects ===
* [[Aries System 300]] – 1 x SSM2030 in the AR-338, 2 x SSM2030 in the AR-341
* [[Digisound 80-11]] – 1 x SSM2020
* [[Digisound 80-7]] – 1 x SSM2040
* [[Digisound 80-8]] – 1 x SSM2050
* [[Fonitronik x SSM2044 VCF]] - 1 x SSM2044
* [https://wiki.theretrowagon.com/wiki/Solid_State_Music_SB1 x SSM SB-1] - 1 x SSM2000
* [[Synthesis Technology MOTM 440]] – 4 x SSM2210, 5 x SSM2220
* [[Thomas Henry]]: A four-pole lowpass VCF – SSM2040<ref name="th">Build a better music synthesiser by Thomas Henry, Tab Books Inc, 1987, {{ISBN|0830627553}}</ref>
* Thomas Henry: A onefour-chippole ADSRlowpass VCF – SSM2056x SSM2040<ref name="th">Build a better music synthesiser by Thomas Henry, Tab Books Inc, 1987, {{ISBN|0830627553}}</ref>
* Thomas Henry one-chip ADSR – x SSM2056<ref name="th" />
* [[Timo Rozendal 2044 VCF]]
<ref name="cem">{{Cite web |url=http://curtiselectromusic.com/Customers_and_Instruments.html |title=Curtis Electromusic |accessdate=2012-12-18 |archiveurl=https://web.archive.org/web/20130502132536/http://curtiselectromusic.com/Customers_and_Instruments.html |archivedate=2013-05-02 |deadurl=yes |df= }}</ref><ref name="sd">[http://www.sequencer.de/specials/synthesizer_chip.html Synthesizer Database] by Moogulator</ref><ref name="sch">Various schematics</ref>
<ref name="cem"/><ref name="sd">[http://www.sequencer.de/specials/synthesizer_chip.html Synthesizer Database] by Moogulator</ref><ref name="sch">Various schematics</ref>
 
== See also ==
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* [http://www.s100computers.com/Hardware%20Folder/SSM/History/History.htm Solid State Music history]
* [http://www.vintagecomputermusic.com/solid_state_music_system.php Solid State Music System]
* [http://ssmcurtis.com/ SSM & Curtis Chips –Synth's Inside outOut]
* [http://www.soundsemiconductor.com/ Sound Semiconductor Inc], reissuing SSM ICs
 
=== Data sheets ===
* [https://archive.org/details/solid-state-micro-technology-for-music-databook-1979 Solid State Micro Technology For Music Databook 1979]
[http://www.sdiy.info/wiki/File:SSM_Catalog.pdf SSM Catalog], [http://www.sdiy.info/wiki/File:SSM2010_datasheet.pdf SSM2010], [http://www.sdiy.info/wiki/File:SSM2012_datasheet.pdf SSM2012], [http://www.sdiy.info/wiki/File:SSM2013_datasheet.pdf SSM2013], [http://www.sdiy.info/wiki/File:SSM2014_datasheet.pdf SSM2014], [http://www.sdiy.info/wiki/File:SSM2015_datasheet.pdf SSM2015], [http://www.sdiy.info/wiki/File:SSM2020_datasheet.pdf SSM2020], [http://www.sdiy.info/wiki/File:SSM2022_datasheet.pdf SSM2022], [http://www.sdiy.info/wiki/File:SSM2024_datasheet.pdf SSM2024], [http://www.sdiy.info/wiki/File:SSM2030_datasheet.pdf SSM2030], [http://www.sdiy.info/wiki/File:SSM2031_datasheet.pdf SSM2031], [http://www.sdiy.info/wiki/File:SSM2033_datasheet.pdf SSM2033], [http://www.sdiy.info/wiki/File:SSM2038_datasheet.pdf SSM2038], [http://www.sdiy.info/wiki/File:SSM2040_datasheet.pdf SSM2040], [http://www.sdiy.info/wiki/File:SSM2044_datasheet.pdf SSM2044], [http://www.sdiy.info/wiki/File:SSM2045_datasheet.pdf SSM2045], [http://www.sdiy.info/wiki/File:SSM2047_datasheet.pdf SSM2047], [http://www.sdiy.info/wiki/File:SSM2050_datasheet.pdf SSM2050], [http://www.sdiy.info/wiki/File:SSM2056_datasheet.pdf SSM2056], [http://www.sdiy.info/wiki/File:SSM2100_datasheet.pdf SSM2100], [http://www.sdiy.info/wiki/File:SSM2120_datasheet.pdf SSM2120], [http://www.sdiy.info/wiki/File:SSM2164_datasheet.pdf SSM2164]▼
* [https://sdiy.info/wiki/File:SSM_Catalog.pdf SSM Catalog, 1986/87]
▲* [httphttps://www.sdiy.info/wiki/File:SSM_CatalogSSM2000_datasheet.pdf SSM CatalogSSM2000], [httphttps://www.sdiy.info/wiki/File:SSM2010_datasheet.pdf SSM2010], [httphttps://www.sdiy.info/wiki/File:SSM2012_datasheet.pdf SSM2012], [httphttps://www.sdiy.info/wiki/File:SSM2013_datasheet.pdf SSM2013], [httphttps://www.sdiy.info/wiki/File:SSM2014_datasheet.pdf SSM2014], [httphttps://www.sdiy.info/wiki/File:SSM2015_datasheet.pdf SSM2015], [httphttps://www.sdiy.info/wiki/File:SSM2020_datasheet.pdf SSM2020], [httphttps://www.sdiy.info/wiki/File:SSM2022_datasheet.pdf SSM2022], [httphttps://www.sdiy.info/wiki/File:SSM2024_datasheet.pdf SSM2024], [httphttps://www.sdiy.info/wiki/File:SSM2030_datasheet.pdf SSM2030], [httphttps://www.sdiy.info/wiki/File:SSM2031_datasheet.pdf SSM2031], [httphttps://www.sdiy.info/wiki/File:SSM2033_datasheet.pdf SSM2033], [httphttps://www.sdiy.info/wiki/File:SSM2038_datasheet.pdf SSM2038], [httphttps://www.sdiy.info/wiki/File:SSM2040_datasheet.pdf SSM2040], [httphttps://www.sdiy.info/wiki/File:SSM2044_datasheet.pdf SSM2044], [httphttps://www.sdiy.info/wiki/File:SSM2045_datasheet.pdf SSM2045], [httphttps://www.sdiy.info/wiki/File:SSM2047_datasheet.pdf SSM2047], [httphttps://www.sdiy.info/wiki/File:SSM2050_datasheet.pdf SSM2050], [httphttps://www.sdiy.info/wiki/File:SSM2056_datasheet.pdf SSM2056], [httphttps://www.sdiy.info/wiki/File:SSM2100_datasheet.pdf SSM2100], [httphttps://www.sdiy.info/wiki/File:SSM2120_datasheet.pdf SSM2120], [httphttps://www.sdiy.info/wiki/File:SSM2164_datasheet.pdf SSM2164]
 
Some are also freely available from:
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