Quadrangle DIY PCBs, Panel and ICs - Eurorack Quad Envelope Generator

★★★★★ 4.7 18 reviews

$44.99
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Management number 219328263 Release Date 2026/05/03 List Price $18.00 Model Number 219328263
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Please note: This includes the PCBs, panel and Atmega ICs only. Please see the bill of materials on the Synthrotek website for a complete list of parts needed.The Quadrangle is quad cascading triggered envelope generator with bipolar output attenuversion. Each channel has voltage control over attack and decay/release, end of attack and end of cycle trigger outputs, and mode (AR, loop and AD). Each channel's EOC is normalled to the next gate input, resulting in interesting rhythmic opportunities. Channel 4 has a "stop" or "continuous looping" switch which allows either a "one shot" cascaded envelope or continuous cycling. The SUM output allows for longer and more dynamic bipolar envelopes, perfect for interesting modulation. Users also have voltage control over all of the attacks and decay/releases simultaneously when using the ALL A and ALL D/R input jacks. Massive function generation, modulation, rhythm and versatility sets the Quadrangle in a class of its own. Features:4 Cascading envelope generatorsAttenuverters for each envelope output (dial in that secret sauce!)Attack, Decay/Release and Loop modes per channelFrom super fast ~2 mS (Audio Rate) envelopes, up to 8 second envelopesCV over Attack and Decay/Release per channelCV over ALL Attack and ALL Decay/ReleaseBipolar Voltage SUM output of all envelopesEnd of Attack & End of Cycle trigger outputs per channelNormalled EOC to next channel Gate input (broken when jack is patched)One Shot or Continuous Looping of all channelsSpecifications:Module width: 20HPModule depth: 15mmCurrent draw:+12V: 64mA-12V: 44mAComes with power cable, 2.5mm and 3.5mm screws

  • Quad cascading triggered envelope generator with bipolar output attenuversion
  • Bipolar Voltage SUM output of all envelopes
  • End of Attack & End of Cycle trigger outputs per channel
  • Attenuverters for each envelope output
  • Module width: 20HP, Module depth: 38mm, Current draw: +12V: 64mA -12V: 44mA
Is Discontinued By Manufacturer No

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