GR-351 OMNI FILTER

The "big dog" filter in the Wiard system is Omni Filter . It is capable of 24 db per octave lowpass, 12 db per octave bandpass, 24 db per octave highpass and 720 degrees of allpass phase shifting. The input can be summed with the phase shifted output to produce the classic "Phase Shifter" comb filter. The audio input has a polarity switch which allows the bandpass mode to be summed with the input to produce "notch" filters.