Covid-19 - Please favor the email over the phone when contacting us: MTL: WEB:
Please note that due to our reduced staff and our busy carriers, delivery times may take longer than usual. You can always use our Facebook page as well to contact us.
Modular Synthesizers

Availability In Stock

Instruo Cèis / CV-controllable A.D.S.R.
Express Checkout


Cèis is a classic ADSR envelope generator with some extra features packed in.

Four faders control the A. D. S. and R. segments.
Each of these can be CV controlled. Control voltages sum with the fader position both extending the range of the timed segments and offering external modulation capabilities over the envelopes timing.

There is a gate output per segment.
These are high for the duration of the segment as it is active.
In addition, there is a combined trigger output which fires at the beginning of each envelope segment.
This allows for the module to behave as a trigger burst generator with CV controllable durations between pulses.

The envelope output can be shaped from linear forms to exponential.
A button allows for manual control in addition to a gate/trigger input jack.

The toggle sets the module's behaviour to work with gates or triggers.
When in the TRIG position, the envelope's attack segment will be forces to complete regardless of the pulse duration.
This allows for the Attack and Release controls to be used as a single shot controlled AR/AD envelope.

The design is all analogue and responds immediately to external control.

Technical Specifications

  • 60 mA +12V
  • 30 mA -12V
  • 27 mm deep

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now