Vintage Synth Lab VCF-74 Voltage Controller Filter Eurorack Module

via @ControlVoltage_

"New module! Designed & built in PDX, the Vintage Synth Lab VCF-74 is racked up & shipping"

"Voltage Controller Filter

The VCF-74 is a 14HP analog voltage controlled filter in Eurorack format. VCF-74 features a dual analog highpass and lowpass filter, cascaded (series, from HP > LP). The discrete diode filter circuit is inspired by the 1970s Univox Mini-Korg synthesizer's "Traveler" filter section which provides warm, organic sound to your modular system. A stage boost switch allows you to drive the 2nd filter section (Low-Pass) with a +5.3dB signal boost from the High-Pass output signal creating a warm saturation. Independent manual resonance controls per filter section allows you to fine-tune a wide variety of focused sound. Input and Output level controls allow you to optimize dynamic range, including how hard you drive the filter--which drastically changes the dynamic interplay between signal and harmonic resonance. Both High-Pass and Low-Pass circuits have independent "offset" controls that will allow for fine tuning of each filter's cutoff. The VCF-74 can be set up as a Low-Pass, High-Pass, or Band-Pass filter. Width of the Band-Pass can be adjusted by simply dialing in the offset controls appropriately.

Inputs
• Audio In
• High-Pass Cut In (CV)
• High-Pass Res In (CV)
• Low-Pass Res In (CV)
• Low-Pass Cut In (CV)
Outputs
• Audio Out
Controls
• Boost (Switch)
• High-Pass Cut
• High-Pass Res (CV)
• Low-Pass Cut
• Low-Pass Res (CV)
Physical Specifications
• Format: Eurorack
• Width: 14hp
• Depth: 1.25”

Electrical Specifications
• Power: +12V @ 38mA, -12V @ 44mA

In the Box
• The module itself
• Eurorack Power Cable"