Fixed Filter Bank


Similar in function to the Moog 907 Fixed Filter Bank, the SW914 Extended Range Fixed Filter Bank is a non-voltage controlled modifier with 14 separate passband controls: high-pass, low-pass, and 12 center frequency knobs. Each passband range has an attenuation slope of 12 dB per octave above or below the center frequency indicated.

This Extended Range Filter Bank is highly useful for emphasizing or attenuating frequency bands in the mid-range of hearing. Instrument simulation, especially double reeds, is a major application for this module due to their varied resonances in mid-range frequency bands. Varying frequency response in each of the half/ octave ranges, even slightly, will change the timbre of a tone as it is moved from one region to the next. Radically different timbres can be overlapped from one frequency range to another, by utilizing the 914 as a fixed cut-off filter. In one range, a particular timbre may predominate when mixed with another. When the signal is moved into a cut-off range, the non-filtered frequencies of the mix will assume maximum importance.


Signal Input impedance: 50k ohm
Signal Output impedance:1k ohm
Signal Gain: unity
Output Noise:
Power Requirements: +/-15 Volt at + 20 mA / - 10 mA
Depth:160 mm

  • 20 mA +15V
  • 10 mA -15V
  • ? mA 5V
  • 160 mm deep

This Module is currently available.

$2,120 Price in €
4 HP Filter
submitted Jun 2nd 2013, 18:51 by solitud | last Change Nov 19th 2017, 02:52 by analogdarkside