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A-120 24dB Low Pass Filter

A-120 24dB Low Pass Filter

Doepfer A-120 - 24dB Low Pass Filter

The Doepfer A-120 is a voltage controlled low-pass filter, which filters out the higher parts of the sound spectrum and lets lower frequencies pass through. The Cut-Off Frequency determines the point at which filtering takes effect. You can control this manually, or by voltage control (filter modulation, for instance by an LFO). Three CV inputs are available, and the sum of the voltages from these affects the filter cut-off.

The module is based on a so-called ‘transistor ladder’ design, with a cut of slope of -24dB / octave, as in various moog synthesizers. That’s what gives it it’s classic, legendary moog sound. Resonance (or Emphasis) is adjustable all the way up to self-oscillation – in which case the filter behaves like a sine wave oscillator.


Max Depth:65mm
Power:+12V: +30mA

-12V: -20mA

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  • Manufacturer: Doepfer
  • Product Code: A-120
  • Availability: 4
  • £94.00
  • Exc VAT: £78.33


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