Shaped Dual EnvVCA

The Shaped Dual EnvVCA is a modulation monster, with VCA, waveshaping and exciting CV inputs and outputs.

This flagship version of the EnvVCA series is basically a Dual EnvVCA on steroids. It delivers two channels from a combination of VCA and envelope. The VCA is based on a DC-coupled, very low-noise circuit, making it equally suitable for control voltages and audio. Ideal for stereo applications and basically everything you need a VCA for.

Really exciting though are the two envelopes, which each have a rise and fall slider (so basically an AD envelope) with selectable fader-behavior so you can always choose just the perfect attack and decay times. Furthermore, there are extensive CV control options as well as EOR (End of Rise) and EOF (End of Fall) outputs to patch these module internally or control other events in the rack. Especially great here is the variable (via fader) selectable response curve of the envelope. These range from exponential to linear to logarithmic, without (!) changing the envelope time. Together with offset and level parameters, which do not affect the VCA level, you get a real jack-of-all-trades, which can be the modulation heart of any Eurorack system.

Also nice to see here are feedback-giving LEDs about speed and polarity, individual attenuators for all Rise and Fall parameters, as well as Follow input jacks which allow for slew limiting, envelope following, sidechaining, ADSR and exciting filter effects.

Features:

• Versatile linear, exponential, and logarithmic envelope generator/LFO
• Low-noise, low-distortion, DC-coupled linear VCAs
• 100% analog
• Shape Slider, CV Jack and Attenuverters for fading between Exponential, Linear and Logarithmic envelope shapes without changing the envelope timing
• Sliders and Range switches control Rise and Fall times from ~2ms to > 2 min.
• Time CV jack extends time range: ~400µs (2.5kHz) to ~1 hour
• Independent attenuverters for Rise and Fall time
• Blue/Red LEDs indicate strength and polarity
• Cycle buttons for looping envelopes (LFO)
• Trigger input jack and switch for toggling between AR, ASR, and Cycle modes of triggering
• EOR/F (End of Rise/Fall) gate outputs can be used to chain and sequence events
• Env Level and Offset knobs scale and shift Env Out without changing VCA volume
• Audio In and Out jacks for passing audio or CV through the VCA
• VCA CV inputs to use VCAs independently from the envelopes:
• VCA gain internally connected to envelope output when VCA CV jack is left unpatched
• Follow input jacks allow for slew limiting, ADSRs, and exotic filtering effects
• Re-trig jumpers allow for re-triggering during rise phase