d&b audiotechnik 24S, Руководство пользователя

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CPL function
The CPL (Coupling) function compensates for coupling effects
between the cabinet and close boundary surfaces. CPL begins
gradually around 1 kHz, with the maximum attenuation below
400 Hz. To achieve a balanced frequency response, the CPL
function can be set to dB attenuation values between 0 and –9.
Positive CPL values create an adjustable low frequency boost (0 to
+5 dB) at around 65 Hz and can be set when the system is used in
full range mode without subwoofers.
2.4. Dispersion characteristics
The following graphs show dispersion angle over frequency of a
single cabinet plotted using lines of equal sound pressure (isobars)
at –6 dB and –12 dB.
Isobar diagram horizontal
24S
vertical setup
Isobar diagram vertical
Isobar diagram horizontal
24S
horizontal setup,
horn rotated
Isobar diagram vertical
Frequency response correction of the CPL function
d&b 24S/24S-D Manual 1.1 en 8