18 HP
30 mm deep
Current Draw
45 mA +12V
45 mA -12V
0 mA 5V
$445 Price in €

Available as an assembled Module and as a DIY project.

This Module is currently available.

Serge Variable Bandwidth Filter (VCF2)

Variable Bandwidth Bandpass Filter

The Serge Variable Bandwidth Filter (VCF2) is probably the rarest classic filter in the Serge system, offering a unique combination of 2 filters. According to the 1983 Serge catalog, the “VARIABLE BANDWIDTH VCF (VCF2) has a band-pass output which can be varied manually or with voltage control. This is a standard response synthesizer VCF, typical of filters used in many studio systems. In the VCF2, two state-variable VCF's are connected in series to produce a total of five outputs. High pass, low pass, two fixed bandwidth outputs, and one variable bandwidth output are available. The outputs are all flat-response (no resonance) so the VCF2 is suitable for processing concrete sounds without introducing resonant coloration to the timbres. Under voltage or manual control, cut-off frequency of the high and low-pass outputs are affected, as well as the center frequency of the two band-pass outputs. Both center frequency and bandwidth are independently controllable on the variable bandwidth output."

Now - for the first time, designed and licensed by Serge - the VCF2 is available as a eurorack module. A new switch has been added which determines if the CV-controls are routed to the first (left), second (right), or both filters, bringing even more sonic options than the original.

Some details of the Random*Source Serge VCF2 module:

  • Original Serge design, under license and in cooperation with Serge Tcherepnin
  • Uses for High-end VCAs
  • Eurorack format (3U), 18 hp
  • Power consumption: 45mA @ +12V, 45mA @ -12V
  • Module depth: < 30mm (1.2")


Ø 4.75 (4 Votes) Average Rating
submitted Sep 24th 2021, 11:15 by zab | last Change Feb 4th, 13:27 by avantgarde423

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