DÚPLEX is a dual solid-state low pass gate, featuring no vactrols but sounding exactly like the real thing.  Each channel has:  voltage control over decay, level and offset, a PING input that converts any signal into a suitable trigger for the circuit (running all the way into audio rates!), a 1-pole or 2-pole filter response, a switchable CLICK amount and an envelope output. The module is fully DC-coupled, so it can also process CV as well as audio. 

Features: 

• Complex envelope-based vactrol-free core
• DECAY knob and CV input w/attenuverter per channel
• LEVEL knob and CV input w/attenuverter per channel
• PING inputs that convert almost any signal into a suitable trigger for the core
• -6dB/oct or -12dB/oct filtering response switch per channel
• CLICK softens (or not) the initial transient of the sound
• ENV outputs per channel
• MIX output 

Specifications: 

• 12 HP
• Depth: 30 mm
• 2 mm anodized aluminium panel
• Fully DC-coupled
• All CV inputs allow audio-rate modulation, PING up to ~100 Hz
• Input impedance: 100 kΩ
• Output impedance: 510 Ω
• Current Draw : +12V: 110mA / 12V: 65mA
• Reverse-polarity power protection