After Later Audio Qarv 4 Stage Function Generator


QARV is a quad envelope generator, oscillator, VCA, mixer, and full synth voice in 20hp. It’s both a great starter module and deep modulation source for larger systems.

Functions: CV Modulation , Envelope Follower , Envelope Generator , Function Generator , Mixer , Slew Limiter , Synth Voice , VCA
Height: 3U
Width: 20hp
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Availability: In Stock | Free UK Shipping

QARV - Quad Attack, Release, & VCA Eurorack Module

Four channels of function generator, oscillator, slew limiter, envelope, and VCAs.  This module brings the ultimate in flexibility as it can be used as a standalone synth voice, a massive amount of modulation, or a four channel envelope generator w/ mixer.  We believe this makes QARV a great first module and a great addition to the largest of systems.

All four channels have the following features:

  • Uni-polar oscillator mode
  • Attack and release time control via potentiometer and via input jack
  • Shape control that controls shape for both attack and release
  • Output attenuverter
  • VCAs that normal to each subsequent channel (CH1 -> CH2, etc.).  So you can get a mix of all four channels out of the CH4 VCA output (unless you patch a VCA output from an earlier channel)

Channels 1 & 4

  • Voltage source (CH1 - 5V & CH4 - 10V)
  • CH1 & CH4 can be switched between IN (slew mode) and TRIG (envelope) mode
  • RISE and FALL gates.  You can use our G&T module to turn these gates into triggers.
  • Cycle times 50sec - 1kHz (0.5ms)

Channels 2 & 3:

  • Bi-polar oscillator mode
  • Dedicated IN and TRIG jacks (helpful for adding offset to a triggered ENV)
  • BOTH input jack to simplify patching both the attack and release (also inverts the input to give more standard pitch tracking of higher voltage equals higher pitch)
  • Cycle times 200sec - 1kHz (0.5ms)

 Patch Guide by Robots Are Red - Patch Guide

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After Later Audio Qarv 4 Stage Function Generator