d&b audiotechnik D40 - Channel Configuration Parameters; Configuration Switches (Filters); Level Adjustment; Equalizer (EQ) Settings

Channel setup
7.2 Configuration switches - Filter_1, _2, _3
The type of filters available depends on the selected loudspeaker
setup.
Depending on the type of filters, these are available as function
buttons or input fields.
The name of the filter is displayed on the top left of the button or
field while the On/Off status or the value is displayed on the
bottom right. In addition, the On/Off status is also indicated by
colors.
Filter_1 Filter_2 Filter_3
Configuration of crossover frequencies for
TOP/SUB, e.g. CUT, 100 Hz, Infra ...
Note: CUT in LINEAR setup:
▪ Butterworth 2nd order (12 dB/oct.)
▪ Corner frequency: 110 Hz
▪ Amplifier gain @ 0 dB: 31 dB.
Compensation of listening distance, e.g. HFA,
HFC.
HFC: Off, +1 (HFC1), +2 (HFC2).
CSA: Cardioid Subwoofer Array.
CPL Þ Array-EQ (compensation of coupling
effects)
CPL range:
—–9 dB ... 0 dB (Off): Cut (Lo shelf)
0 dB (Off) ... ++5 dB: Boost (65 Hz, Bell)
On the Home screen, the On/Off status or the set values of the
Configuration switches are indicated by the entry on the Channel
view button of the corresponding channel strip, as shown in the
graphic opposite.
Note: A detailed description of the filters available for each
loudspeaker is given in the relevant loudspeaker manuals.
A detailed description of the CSA function (Cardioid Subwoofer
Array) is given in the technical information TI 330 which can be
downloaded from the d&b website at
www.dbaudio.com.
7.3 Level
Input sensitivity of the respective power amplifier channel or set of
channels (depending on the output mode), adjustable within a
range of —57.5 dB to +6 dB in steps of 0.5 dB.
7.4 EQ - Equalizer
Selecting «EQ» opens the equalizer subscreen of the respective
channel.
The graphic opposite shows the location of the equalizer (User
EQ) within the signal chain.
The equalizer provides two independent and user definable 16-
band equalizers (2 x 16 minimum phase biquad IIR filters, full
parametric) and is split into two layers:
Þ EQ overview,
Þ EQ layer/curve.
d&b D40 Reference manual 1.5 en 43