The Instruō cèis[2] is a fully analogue voltage controlled ADSR envelopegenerator. The ADSR function generator is the model pioneered by theEast-coast mindset and is extensively used in subtractive synthesis patches. The cèis[2] gives the ability to externally control the attack, decay, sustain, andrelease stages of the envelope while also emitting trigger and gate signals foreach segment, offering maximum versatility from a classic tool. This version[2] revision brings additional flexibility and control through acompletely redesigned logic extraction circuit for the segment gates,envelope re-trigger input, and a precision throughput for voltage controlledslew limiter capabilities. Width: 8HP Depth: 27mm Power: 70mA @ +12V / 40mA @ -12V