DOEPFER A-121-3 Slim Line Multimode Filter - 4hp



  • Four simultaneously available outputs: lowpass (LP), highpass (HP), bandpass (BP) and notch (N)
  • Voltage-controlled multimode 2-pole filter with a cutoff slope of 12dB/oct
  • Manual frequency control for filter cutoff frequency
  • Two inputs for CV control of filter frequency (CV1 without attenuator, CV2 with attenuator)
  • Manual filter resonance control (Q)
  • Control voltage input CQ without attenuator for voltage control of the resonance
  • Resonance up to self-oscillation (sine wave oscillator)
  • Audio input with attenuator for adjustment of the filter input level (beyond about pos. 5, clipping/distortion occurs with typical A-100 audio levels)
  • Resonance up to self-oscillation (sine wave oscillator)

  • Panel:  Silver
  • Width:  4hp
  • Depth:  50mm (***may not fit some skiffs***)
  • Power:  +12V = 40mA, -12V = 30mA

Item ships within 1 business day to continental US addresses only via USPS.

Please ask any questions prior to purchase, returns not accepted.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

Listed3 months ago
ConditionMint (Used)
Mint items are in essentially new original condition but have been opened or played.learn more
  • A-121-3 VCF 12db Multimode Filter
  • Silver
  • 2022
Made In
  • Germany


Las Vegas, NV, United States
Joined Reverb:2021

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