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8.2. High and Low pass filter Screens
Each output has an independent high pass filter and an independent low pass filter.
Both filters have a range of selectable slopes, which are Bessel 12dB, 18dB and
24dB, Butterworth 12dB, 18dB and 24dB, and Linkwitz-Riley 24dB.
High pass filters have a range of <10Hz (through) to 16kHz and Low pass filters
have a range of 22kHz (through) to 35.1Hz in 1/36 octave steps.
HPFs and LPFs can be asymmetrical set.
To adjust HPF/LPF settings:
Select relevant channel by pressing the channel ‘GAIN’ button.
Use the ‘BACK’ and ‘NEXT’ keys to select HPF and LPF screens.
Use the ‘FREQ’ control to adjust the frequency.
Use the ‘Q’ control to select the slope.
Note: The low pass filter frequency cannot be set lower than the high pass filter
frequency and vice versa.
OP1+4 Low HPF
< 10Hz Bessel 24dB