Marani DPA-880T, User Manual

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Low Pass Filter : from this sub-frame it is possible to set the Output Channels Low Pass Filter
(LPF).
“ Frequency ”: (High Cut frequency) the selectable frequencies range is from 20Hz to 20kHz in
steps of 1/24 of an Octave.
“ Slope ”: allows you to select the X-Over's Low Pass Filter Shape and Order.
The available shapes and orders for the Low Pass Filter are listed below:
–
Bypass (High Pass Filter Bypassed)
–
Buttw 6dB (Butterworth Filter 6dB/Oct Slope)
–
Buttw 12dB (Butterworth Filter 12dB/Oct Slope)
–
LRiley 12dB (Linkwitz/Riley Filter 12dB/Oct Slope)
–
Bessel 12dB (Bessel Filter 12dB/Oct Slope)
–
Buttw 18dB (Butterworth Filter 18dB/Oct Slope)
–
Buttw 24dB (Butterworth Filter 24dB/Oct Slope)
–
LRiley 24dB (Linkwitz/Riley Filter 24dB/Oct Slope)
–
Bessel 24dB (Bessel Filter 24dB/Oct Slope)
EQ: from this sub-frame it is possible to set the Output Channels five available Peaker (Bell) or
variable Q Shelving Filters.
The DPA880 allows the user to select either Bell or variable Q Shelving Parameters and assign
them independently using the 5 available filters.
The selection can be done just pressing the “Peak Eq” button on top of the filters' gain sliders and
selecting one of the 3 available filters' type: Peaker, variable Q high Shelving and variable Q low
Shelving.
BELL Filter: here Center Frequency, Band Width (Q) and Gain can be adjusted.
“ Center Frequency ”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1/24 of
an Octave.
“ Bandwidth BW ”: the selectable BW range is from 0.0312 Octave (Q=10) up to 3.59 Octave
(Q=0.4) in steps of 0.1 Q.
“ Gain ”: the selectable Gain range is from -12dB to +12dB in steps of 0.5 dB.
Variable Q Low Shelving Filter: here Center Frequency, Band Width (Q) (Slope) and Gain can
be adjusted.
“ Center Frequency ”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1/24 of
an Octave.
“ Bandwidth BW (Slope) ”: the selectable BW range is from 0.0312 Octave (Q=10) up to 3.59
Octave (Q=0.4) in steps of 0.1 Q.
“ Gain ”: the selectable Gain range is from -12dB to +12dB in steps of 0.5 dB.
Variable Q High Shelving Filter: here Center Frequency, Band Width (Q) (Slope) and Gain can
be adjusted.
“ Center Frequency ”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1/24 of
an Octave.
“ Bandwidth BW (Slope) ”: the selectable BW range is from 0.0312 Octave (Q=10) up to 3.59
Octave (Q=0.4) in steps of 0.1 Q.
“ Gain ”: the selectable Gain range is from -12dB to +12dB in steps of 0.5 dB.
Note : each single filter can be independently “bypassed” for an easy setting/use of them.
To “Bypass” the single filter, just press the “Bypass” button below the filter’s parameters.