TK Audio


500-series Twin filter

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TF1 line art

A high-pass and low-pass filter with 6dB or 12dB/octave. Each section has a x10 switch for a broad range.


  • Sweepable high pass and low pass filter
  • Selectable between 6dB or 12dB/octave
  • x10 switches for extended frequency ranges
  • All controls stepped for easy recall