d&b audiotechnik 10AL-D 매뉴얼 - 페이지 8

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d&b audiotechnik 10AL-D에 대해서도 마찬가지입니다: 매뉴얼 (12 페이지)

페이지 인쇄
d&b audiotechnik 10AL-D 매뉴얼
10
5
0
-5
-10
-15
-20
-25
-30
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100
1k
Fig. 6: Frequency response correction of HFA circuit
Fig. 7: Frequency response correction of CPL circuit
8
10k
20k
HFA circuit
In HFA mode (High Frequency Attenuation), the HF response of the
system is rolled off. HFA provides a natural, balanced frequency
response when a unit is placed close to listeners in near field or
delay use.
High Frequency Attenuation begins gradually at 1 kHz, dropping
by approximately 3 dB at 10 kHz. This roll off mimics the decline
in frequency response experienced when listening to a system from
a distance in a typically reverberant room or auditorium.
CPL circuit
The CPL (Coupling) circuit compensates for coupling effects
between the cabinets when building closely coupled arrays. CPL
begins gradually around 1 kHz, with the maximum attenuation
below 200 Hz. To achieve a balanced frequency response, the
CPL circuit can be set to dB attenuation values between 0 and –9.
Positive CPL values create an adjustable low frequency boost (0 to
+5 dB) and can be set when the system is used in full range mode
without subwoofers.
d&b 10A/10A-D Manual (1.1 EN)