Page 21
High and Low Pass Filters
•
Knob a: Frequency, <<out, 20.0Hz to 25.6kHz, out>>
•
Knob b: low pass or high pass filter type
Filter type is selectable from Butterworth, Bessel, Linkwitz-Riley and Hardman. Filter slopes of up to 8th
order or 48dB / octave are provided. Not all filter types are available in all slopes. For example 18dB / octave
Linkwitz-Riley filters do not exist.
The Hardman type filter is always described by its’ order as the filter becomes progressively steeper rather
than following a linear slope so a dB/octave description is not accurate.
Out1 Freq Shape
LPF 2.50k LR24
a
b
c
a
b
