User guide

Coda Audio DNC260
User Guide version 0.1 Page 20 of 30
High Pass Filter
In A Freq Shape
HPF 20.0Hz LR24
a b
c
a b
• Knob A: Frequency, out (off), 20.0Hz to 25.6kHz in variable steps
• Knob B: high pass filter type
System high pass filtering is provided for the input signal. This is the preferred location for
high pass filtering as it affects all outputs and can therefore improve inter-band phase
relationships. Filter type is selectable from Butterworth, Bessel, Linkwitz-Riley and
Hardman. Filter slopes of up to 4th order or 24dB / 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.
Parametric Equalisation
Eight sections of equalisation are provided, two shelving filters and six fully variable
parametric sections.