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'''Frac Rack''', '''FracRak''' or '''Frac''' is the modular synthesizer format designed by John Simonton of [[PAiA Electronics Inc|PAiA]]. It has a wide following largely through the popularity of [[Blacet Research|Blacet]] modules.<ref name="measures">[http://www.electro-music.com/forum/viewtopic.php?t=18281&postorder=asc Standard measurements in front panels], Electro-music.com forum, April 2006</ref>
'''Frac Rack''', '''FracRak''' or '''Frac''' is the modular synthesizer format designed by John Simonton of [[PAiA Electronics Inc|PAiA]]. It has a mainly USA following largely through the popularity of [[Blacet Research|Blacet]] modules.<ref name="measures">[http://www.electro-music.com/forum/viewtopic.php?t=18281&postorder=asc Standard measurements in front panels], Electro-music.com forum, April 2006</ref><ref name="an">[http://www.analognotes.com/ Analog Notes]</ref><ref name="list">[http://www.muffwiggler.com/forum/viewtopic.php?t=1461 List of Frac module manufacturers], Muff's Modules & More forum, August 2008</ref>


Like the [[Eurorack]] format, Frac is considered a [[3U]] format. The height of most modern modular synthesizer modules is measured by the number of vertical units it consumes in a standard [[19-inch rack|19" equipment rack]]. Modules conforming to the 3U format will take up three vertical units in a 19" equipment rack. Each vertical rack unit is 1¾", so a 3U module is 5¼" tall. The Frac format has a standard width unit of 1½". So 3" and 4½" wide modules are common in this format. <ref name="measures" />
Like the [[Eurorack]] format, Frac is considered a [[3U]] format. The height of most modern modular synthesizer modules is measured by the number of vertical units it consumes in a standard [[19-inch rack|19" equipment rack]]. Modules conforming to the 3U format will take up three vertical units in a 19" equipment rack. Each vertical rack unit is 1¾", so a 3U module is 5¼" tall. The Frac format has a standard width unit of 1½". So 3" and 4½" wide modules are common in this format.<ref name="measures" />


Note that even though the height of both Frac and Euro modules are 3U, differences exist in the mounting system.<ref name="faq">[http://www.blacet.com/FAQ.html Blacet FAQ]</ref> Paia, Blacet and some [[Wiard]] modules are Frac mounting compatible.<ref>[http://www.blacet.com/tech.html Tech Notes], Blacet Research</ref>
Note that even though the height of both Frac and Euro modules are 3U, differences exist in the mounting system.<ref name="an" /><ref name="faq">[http://www.blacet.com/FAQ.html Blacet FAQ]</ref><ref>[http://www.blacet.com/tech.html Tech Notes], Blacet Research</ref>


Frac format modules typically use 3.5&nbsp;mm connectors and plugs for patching, although there are companies that offer modules with banana jacks e.g. [[BugBrand]], [[Metalbox]].<ref>[https://www.muffwiggler.com/forum/viewtopic.php?t=7514&sid=6d5c4caf944e77c085f0437cf90ce3be Banana Frac: The Definitive Guide], Muff Wiggler forum, August 2009</ref><ref>[http://www.metalbox.com/ Metalbox Info]</ref>
Frac format modules typically use 3.5&nbsp;mm connectors and plugs for patching, although there are companies that offer modules with banana jacks e.g. [[BugBrand]], [[Metalbox]].<ref>[https://www.muffwiggler.com/forum/viewtopic.php?t=7514&sid=6d5c4caf944e77c085f0437cf90ce3be Banana Frac: The Definitive Guide], Muff Wiggler forum, August 2009</ref><ref>[http://www.metalbox.com/ Metalbox Info]</ref>


Power requirements for Frac modules are typically ±15VDC. Current draw depends on the module.<ref name="measures" /><ref name="faq" />
Power requirements for Frac modules are typically ±15VDC. Current draw depends on the module. The [[CV/gate|control voltage]] is 1V/octave.<ref name="measures" /><ref name="an" /><ref name="faq" />

== List of Frac module brands ==
Those marked * no longer support the Frac format.<ref name="list" />
* [[Ad Infinitum]]
* [[Analog Metropolis]]
* [[Bananalogue]]
* [[Blacet]]
* [[BugBrand]]
* [[Bugbrand]]
* [[Cyndustries]]
* [[Encore Electronics]]
* [[Flight of Harmony]]*
* [[KissBox]]
* [[Metalbox]]
* [[PAIA]]
* [[STG Soundlabs]]*
* [[Stroh Modular]]
* [[Synthasonic]]*
* [[Synthesis Technology]]*
* [[Wiard]]*


{{From Muff Wiggler wiki|Frac}}
{{From Muff Wiggler wiki|Frac}}
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== External links ==
== External links ==
* [https://www.muffwiggler.com/forum/viewforum.php?f=15 Fractional Rack Modules], Muff's Modules & More forum
* [https://www.muffwiggler.com/forum/viewforum.php?f=15 Fractional Rack Modules], Muff's Modules & More forum,
* [http://www.electro-music.com/forum/topic-18281.html Standard measurements in front panels], electro-music.com, DIY Hardware and Software forum, May 2007
* [http://www.electro-music.com/forum/topic-18281.html Standard measurements in front panels], electro-music.com, DIY Hardware and Software forum, May 2007
* [http://www.blacet.com/about.html About Blacet Research]
* [http://www.blacet.com/about.html About Blacet Research]

Revision as of 10:06, 21 May 2017

Frac Rack, FracRak or Frac is the modular synthesizer format designed by John Simonton of PAiA. It has a mainly USA following largely through the popularity of Blacet modules.[1][2][3]

Like the Eurorack format, Frac is considered a 3U format. The height of most modern modular synthesizer modules is measured by the number of vertical units it consumes in a standard 19" equipment rack. Modules conforming to the 3U format will take up three vertical units in a 19" equipment rack. Each vertical rack unit is 1¾", so a 3U module is 5¼" tall. The Frac format has a standard width unit of 1½". So 3" and 4½" wide modules are common in this format.[1]

Note that even though the height of both Frac and Euro modules are 3U, differences exist in the mounting system.[2][4][5]

Frac format modules typically use 3.5 mm connectors and plugs for patching, although there are companies that offer modules with banana jacks e.g. BugBrand, Metalbox.[6][7]

Power requirements for Frac modules are typically ±15VDC. Current draw depends on the module. The control voltage is 1V/octave.[1][2][4]

List of Frac module brands

Those marked * no longer support the Frac format.[3]

Template:From Muff Wiggler wiki

See also

References

  1. ^ a b c Standard measurements in front panels, Electro-music.com forum, April 2006
  2. ^ a b c Analog Notes
  3. ^ a b List of Frac module manufacturers, Muff's Modules & More forum, August 2008
  4. ^ a b Blacet FAQ
  5. ^ Tech Notes, Blacet Research
  6. ^ Banana Frac: The Definitive Guide, Muff Wiggler forum, August 2009
  7. ^ Metalbox Info

External links

Retrieved from "https://sdiy.info/wiki/Frac_rack?oldid=3408"