Vintage Synth Lab VCF-74 mk2

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$ 249.00 Total

Voltage Controller Filter

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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.

mk2 changes
• audio signal path will have slightly lower frequency response as a result of component value changes
• audio signal path will now use fewer coupling capacitors (more direct-coupled circuits mean better performance, less slewing)
• Added buffer circuits at the input and final filter-to-output stage (which will improve performance)
• Added calibration trim-pots for resonance control
• Revised power supply filtering scheme for the discrete (Class-A) filter stages (which reduces incoming power supply noise/ripple)
• Added ESD protection (ESD suppressor diodes) to each front panel jack
• Changed power inlet header from 16P to 10P

• Audio In
• High-Pass Cut In (CV)
• High-Pass Res In (CV)
• Low-Pass Res In (CV)
• Low-Pass Cut In (CV)

• Audio Out

• Boost (Switch)
• High-Pass Cut
• High-Pass Res (CV)
• Low-Pass Cut
• Low-Pass Res (CV)

In the Box
• The module itself
• Eurorack Power Cable

+12v: 41mA
-12v: 48mA
+5v: 0mA
Width: 14HP
Depth: 29mm
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