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A voltage controlled filter, or VCF, is by definition a filter whose cutoff frequency or center frequency is determined by a control voltage input. Other parameters of the filter (such as resonance) might or might not be voltage controllable, but if the cutoff frequency is voltage controllable, then the filter qualifies as a VCF.

Notable synth filters[]

Those that are most often cloned or mentioned in conversation.

  • Arp 2600
  • Buchla Lowpass-Gate
  • CEM3320
  • EMS Putney
  • Korg MS20
  • Moog ladder filter
  • Oberheim OBX
  • Oberheim SEM
  • Roland SH-101
  • Roland SH-5
  • Roland TB303
  • Serge VCFQ
  • SSM2044
  • SSM2040
  • Steiner
  • Wasp