d&b audiotechnik Ci80 Руководство пользователя - Страница 5
Просмотреть онлайн или скачать pdf Руководство пользователя для Динамики d&b audiotechnik Ci80. d&b audiotechnik Ci80 8 страниц.
Печатать страницу
1+
1-
2+
passive
2-
crossover
1+
1-
2+
2-
Fig. 2: Connector wiring
10
5
0
-5
-10
-15
-20
-25
-30
20
100
1k
Fig. 3: Frequency response correction of
HFA circuit
Fig. 4: Frequency response correction of
CPL circuit
Ci80 Manual
Connections
The Ci80 cabinet is fitted with two NL4 connectors. All four pins of both
connectors are wired in parallel. The Ci80 uses the pin assignments
1+/1–. Pins 2+/2– are designated to the d&b active subwoofers.
Using one connector as the input, the second connector allows for direct
connection to additional loudspeakers.
Installation loudspeakers with the weather resistant option are supplied
with a fixed cable (PG).
Cable type:
Standard length: 5.5 m (18 ft)
Pin equivalents of NL4 connectors and fixed cable option (PG) are listed
in the table below.
NL4
PG
Operation with D6 or D12
Select the controller setup Ci80.
Within the D12 amplifier this is available in "Dual Channel" and "Mix
TOP/SUB" mode.
Up to a total of four Ci80 loudspeakers can be driven by each D6 or
D12 amplifier channel.
Controller settings
For acoustic adjustment the functions CUT, HFA and CPL can be
selected.
CUT
Set to CUT, a high pass filter with a 130 Hz cut off frequency is inserted
in the controller signal path. The Ci80 is now configured for use with the
d&b active subwoofers.
HFA circuit
In HFA mode (High Frequency Attenuation), the HF response of the
system is rolled off. The HFA circuit 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.
10k
20k
CPL circuit
The CPL (Coupling) circuit compensates for coupling effects between the
cabinets when building closely coupled arrays. CPL begins gradually at
1 kHz, with maximum attenuation below 400 Hz, providing a balanced
frequency response when cabinets are used in arrays of two or more.
The function of the CPL circuit is shown in the diagram opposite and can
be set in dB attenuation values between –9 and 0, or a positive CPL
value which creates an adjustable low frequency boost around 65 Hz (0
to +5 dB).
(4.1 EN)
H-07-RN-F 2 x 2.5 mm2/AWG 13
1+
1–
Brown (+)
Blue (–)
2+
2–
n.a.
n.a.
Page 5 of 8