Bessel_2nd
Bessel filter of second order with a slope of
12 dB / octave
Buttw_3rd
Butterworth filter of third order with a slope of
18 dB / octave
Buttw_4th
Butterworth filter of fourth order with a slope
of 24 dB / octave
LRiley_4th
Linkwitz-Riley filter of fourth order with a
slope of 24 dB / octave
Bessel_4th
Bessel filter of fourth order with a slope of
24 dB / octave
LRiley_6th
Linkwitz-Riley filter of 6th order with a slope
of 36 dB / octave
LRiley_8th
Linkwitz-Riley filter of 8th order with a slope
of 48 dB / octave
Custom_2nd
filter of second order with variable quality fac-
tor (Q), slope of 12 dB / octave
Custom_3rd
two cascaded filters with separately ad -
justable cut-off frequencies and variable
quality factor (Q) for the second filter, slope of
18 dB / octave
Custom_4th
two cascaded filters with separately ad -
justable cut-off frequencies and variable
quality factor (Q) for both filters, slope of
24 dB / octave
Custom_5th
three cascaded filters with separately ad -
justable cut-off frequencies and variable
quality factor (Q) for two filters, slope of
30 dB / octave
Custom_6th
three
cascaded
filters
adjustable cut-off frequencies and variable
quality factor (Q) for all filters, slope of 36 dB/
octave
Custom_7th
four
cascaded
filters
adjustable cut-off frequencies and variable
quality factor (Q) for three filters, slope of 42
dB / octave
Custom_8th
four cascaded filters with separately ad -
justable cut-off frequencies and variable
quality factor (Q) for all filters, slope of 48 dB/
octave
4) Use the rotary knob PM3 to adjust the fre-
quency. A change is effective immediately.
For making major frequency changes faster,
press the knob ENTER. The lower line of the
display now shows e. g.:
ƊEdit Freq =
100Hz
The frequency can now purposefully be
changed with the rotary knobs PM1 in steps
of 100 Hz, PM2 in steps of 10 Hz and PM3 in
steps of 1 Hz. To return to the higher menu
level, press the knob ESC.
5) For the filter characteristics "Custom...": to
adjust the additional parameters depending
on the filter order, use the rotary knob PM1 to
select the individual filters
Filt4
, e. g.
ƊFilt1 F = 100Hz Q= 0.80
The parameters can be changed according to
the rotary knobs PM2 and PM3. A change is
effective immediately.
with
separately
with
separately
Filt1
to
⑦
Menu structure for the adjustment of an output channel
GB
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