d & b audiotechnik Ci45 User manual

Ci45/Ci60/Ci90
Manual (9.1E)

References in the manual
WARNING! This refers to a potentially dangerous situation which
may lead to personal injury.
CAUTION! This refers to a potentially dangerous situation which
may lead to personal injury.
IMPORTANT! This refers to a situation which may cause the equipment
to malfunction.
Note: Additional informations and/or references
Symbols on the equipment
Please refer to the information in the operating manual.
WARNING!
Dangerous voltage!
General Information
Ci45/Ci60/Ci90 Manual
Version 9.1E, 04/2005, D2086.E.09
©by d&b audiotechnik AG 2005; all rights reserved.
The information contained in this manual has been carefully checked for
accuracy, at the time of going to press, however no guarantee is given
with respect to the correctness.
d&b audiotechnik AG accepts no responsibility for any errors or
inaccuracies that may appear in this manual or the products and
software described in it.
Technical specifications, dimensions, weights and properties do not
represent guaranteed qualities.
As manufacterers we reserve the right to make alterations and
modifications within the framework of legal provisions, as well as
changes aimed at improving quality.
d&b audiotechnik AG
Eugen-Adolff-Strasse 134, D-71522 Backnang, Germany
Telephone [phone], Fax [phone]
E-mail: [email protected], Internet: www.dbaudio.com

Safety precautions
Before you use our products, read the manual carefully
and observe all the safety precautions. They will protect
you and help to avoid equipment failures.
Keep this manual in a safe place so that it is available for
future reference.
If you supply d&b products, please draw the attention of
your customers to these safety guidelines. Enclose the
relevant manuals with the systems. If you require
additional manuals for this purpose, you can order them
from d&b.
Information regarding use of loudspeakers
WARNING! Never stand in the immediate vicinity of loudspeakers driven at a high
level. Professional loudspeaker systems are capable of causing a sound
pressure level detrimental to human health. Seemingly non-critical sound
levels (from approx. 95 dB SPL) can cause hearing damage if people
are exposed to it over a long period.
In order to prevent accidents when deploying loudspeakers on the
ground or when flown, please take note of the following:
When setting up the loudspeakers or loudspeaker stands, make sure
they are standing on a firm surface. If you place several systems on top
of one another, use straps to secure them against movement.
Only use accessories which have been tested and approved by d&b for
assembly and mobile deployment. Pay attention to the correct
application and maximum load capacity of the accessories as detailed in
our specific “Mounting instructions” or in our "Flying system and Rigging
manuals".
Ensure that all additional hardware, fixings and fasteners used for
installation or mobile deployment are of an appropriate size and load
safety factor. Pay attention to the manufacturers instructions and to the
relevant safety guidelines.
Regularly check the loudspeaker housings and accessories for visible
signs of wear and tear, and replace them when necessary.
Regularly check all load bearing bolts in the mounting devices.
CAUTION! Loudspeakers produce a static magnetic field even if they are not
connected or are not in use. Therefore make sure when erecting and
transporting loudspeakers that they are nowhere near equipment and
objects which may be impaired or damaged by an external magnetic
field. Generally speaking, a distance of 0.5 m (1.5 ft) from magnetic
data carriers (floppy disks, audio and video tapes, bank cards, etc.) is
sufficient; a distance of more than 1 m (3 ft) may be necessary with
computer and video monitors.
Ci45/Ci60/Ci90 Manual (9.1E) Safety precautions - 1

Ci45/Ci60/Ci90
Fig. 1: Ci45/Ci60/Ci90 loudspeaker
C45i0, Ci60 and Ci90 cabinets are full range, two-way bass-reflex
enclosures each fitted with a 12" LF driver passively crossed over to a
1.4“ HF compression driver coupled to a CD horn with 45° x 45° (Ci45),
65° x 40° (Ci60) or 90° x 40° (Ci90) coverage pattern. The cabinets are
designed to allow the horn flares to be rotated through 90° allowing
greater flexibility in placement for a given dispersion.
The cabinets are constructed from marine plywood and have an impact
resistant paint finish. The front is protected by a rigid metal grill fitted
with an acoustically transparent foam. M10 threaded inserts are
provided on the top and bottom, and on the sides of each cabinet, for
mounting rigging accessories. A recess at the top of the rear panel,
which also serves as a handle, is fitted with two Speakon NL4 input
connectors.
Ci45/Ci60/Ci90 systems are designed specifically for permanent
installation. In the standard, upright operating position the CD horn is
positioned below the LF driver so the HF dispersion is less likely to be
influenced by reflections from walls, ceilings or other equipment
mounted nearby. This arrangement improves the headroom before
feedback when systems are flown above the stage.
The frequency response of the systems extends from 18 kHz down to
55 Hz enabling use in most applications without a subwoofer. Where
higher SPLs with an extended bass response are required the Ci systems
can be combined with d&b active subwoofer systems .
CAUTION! Only operate Ci45/Ci60/Ci90 loudspeakers with a d&b amplifier
configured correspondingly otherwise there is a risk of damage to the
loudspeaker components.
Connections
1+
1-
2+
2-
1+
1-
2+
2- passive
crossover
Fig. 2: Connector wiring
Since November 2004 the Ci45/Ci60/Ci90 cabinets are fitted with two
NL4 connectors. All pins of both connectors are wired in parallel using
the pin assignments 1+/1−. Using one connector as the input, the
second connector allows for direct connection to additional
loudspeakers.
The systems can be supplied with a fixed cable as an option (cable
H-07-RN-F 2 x 2.5 qmm/AWG 13 with a length of 5.5 m as standard or
length as required). Pin equivalents of NL4 connectors and fixed cable
option (PG) are listed in the table below.
NL4 1+ 1− 2+ 2−
PG Brown (+) Blue (−)
Tab. 1: NL4 and fixed cable (PG) pin assignments
Operation with D12
IMPORTANT! Selecting Ci60, Ci90 or Ci45 mode in the D12 enables up to two
cabinets to be driven by the respective channel. In applications with low
continuous levels or low ambient temperatures up to three cabinets can
be connected.
Ci45/Ci60/Ci90 Manual (9.1E) Page 4 of 10

Controller settings
For acoustic adjustment the functions CUT, HFA and CPL can be
selected.
CUT circuit
Set to CUT, the Ci60/Ci90/Ci45 low frequency level is reduced. The
loudspeaker is now configured for use with the Ci-SUB, Q-SUB or d&b
C-Series subwoofers.
HFA circuit
-5
0
5
10
-10
-15
-20
-25
-30
20 100 1k 10k 20
k
Fig. 3: Frequency response correction with
HFA setting
In HFA mode (High Frequency Attenuation), the HF response of the
system is rolled off. The 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
Fig. 4: Frequency response correction of
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
250 Hz, providing a balanced frequency response when cabinets are
used in arrays of two or more. The function of the CPL circuit in the D12
amplifier 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).
Operation with E-PAC
REMOTE
LO IMP
DELAY ON
CU
T
HFA
SPKR
21345687
ON
Fig. 5: E-PAC Configuration for Ci60/Ci90
(E-PAC version 2)
To drive Ci60/Ci90 or Ci45 loudspeakers the E-PAC has to be
configured to Ci60/Ci90 (CI6/CI9) mode (possible with E-PAC version 2
from serial number Z2500.000.02-01313 and E-PAC version 3) or Ci45
mode (possible with E-PAC vesrion 3).
For an E-PAC version 2, the configuration is selected by setting the
appropriate DIP switches on the rear panel.
For an E-PAC version 3, the configuration is set via the encoder in
conjunction with the LCD.
Selecting Ci60/Ci90/Ci45 mode enables one Ci60/Ci90/Ci45 cabinet
to be driven at an output power of 300 Watts. LO IMP mode allows the
E-PAC to drive two cabinets with a 6 dB reduction of input level to the
speakers.
The CUT and HFA settings are available on versions 2 and 3 and are
explained under the previous section "Operation with D12 - Controller
settings".
Ci45/Ci60/Ci90 Manual (9.1E) Page 5 of 10

Dispersion charcteristics
The graphs below show the dispersion angle v frequency, plotted using
lines of equal sound pressure (isobars) at –6 dB and –12 dB.
Fig. 6: Isobar diagram Ci45 horizontal Fig. 7: Isobar diagram Ci45 vertical
Fig. 8: Isobar diagram Ci60 horizontal Fig. 9: Isobar diagram Ci60 vertical
Fig. 10: Isobar diagram Ci90 horizontal Fig. 11: Isobar diagram Ci90 vertical
Ci45/Ci60/Ci90 Manual (9.1E) Page 6 of 10

Technical specifications
Ci45 / Ci60 / Ci90 system data
Frequency response (–5 dB).....................................................................55 Hz – 18 kHz
Max. sound pressure (1 m, free field) with D12...............................136/136/135 dB
Max. sound pressure (1 m, free field) with E-PAC...........................133/133/132 dB
(SPLmax peak, pink noise test signal with crest factor of 4)
Input level (100 dB SPL / 1 m)...............................................................................–16 dBu
Polarity to controller INPUT (XLR pin 2: + / 3: –)....................................LF: – / HF: +
Ci45 / Ci60 / Ci90 loudspeaker
Nominal impedance..................................................................................................8 ohms
Power handling capacity (RMS / peak 10 ms).........................................200 / 800 W
Nominal dispersion angle (hor. x vert.)................45° x 45° / 65° x 40° / 90° x 40°
..................................................................Ci60/Ci90 alternatively 40° x 65° /40° x 90°
Components....................................................................................................1 x 12” driver
.........................................................................................................1.4” compression driver
.....................................................................................................Passive crossover network
Connections...............................................................................................................2 x NL4
.............................................optional fixed cable (H-07-RN-F 2 x 2.5 qmm/AWG 13)
Pin assignments..................................................................................................NL4: 1+/1–
.............................................................................................Fixed cable: Brown + / Blue –
Weight.............................................................................................................27 kg (59.4 lb)
Fig. 12: Frequency response Ci45 standard, CUT and HFA
settings
-5
0
5
10
-10
-15
-20
-25
-30
20 100 1k 10k 20
k
Fig. 13: Frequency response Ci60, standard, CUT and HFA
settings
-5
0
5
10
-10
-15
-20
-25
-30
20 100 1k 10k 20
k
Fig. 14: Frequency response Ci90 standard, CUT and HFA
settings
Ci45/Ci60/Ci90 Manual (9.1E) Page 7 of 10

Fig. 15: Wiring diagram Ci45/Ci60/Ci90
Fig. 16: Cabinet dimensions Ci45/Ci60/Ci90 in mm [inch]
Rigging accessories
The table below lists the rigging accessories that are available for the
Ci45, Ci60 and Ci90 loudspeaker:
Code Description
Z5051.000 Ci60 / Ci90 Horizontal bracket
Z5052.000 Ci60 / Ci90 Flying bracket
Z5053.000 Ci60 / Ci90 Bracket connector
Z5054.000 Ci60 / Ci90 Flying adapter
Z5020.000 Flying adapter 02
Z5044.000 MAX Bracket connector
Z5147.000 Rota clamp
Z5010.000 TV spigot with fixing plate
Z5015.000 TV spigot for Z5020
Z5012.000 Pipe clamp for TV spigot
Z5024.000 Loudspeaker stand adapter
Q9031.000 M8 Safety eye bolt
Q9032.000 M10 Safety eye bolt
For further information please refer to the specific mounting instructions
for each accessory.
Ci45/Ci60/Ci90 Manual (9.1E) Page 8 of 10

EU declaration of conformity (CE symbol)
EU conformity of loudspeakers
This declaration applies to loudspeakers manufactured by d&b
audiotechnik AG and includes the types listed in the table below:
- Ci45 Loudspeaker Z1405
- Ci60 Loudspeaker Z1400
- Ci90 Loudspeaker Z1401
All production versions of these types are included, provided they
correspond to the original technical version and have not been subject
to any later design or electromechanical modifications.
We herewith declare that said products are in conformity
with the provisions of the following EC directives
including all applicable amendments:
- 89/336 Electromagnetic Compatibility
The following standards have been applied:
- DIN EN 55013:08-1991
- DIN EN 55020:05-1995
- DIN EN 50082-1:03-1993
Ci45/Ci60/Ci90 Manual (9.1E) Page 9 of 10

D2086.E.09, 04/2005 © d&b audiotechnik AG
d&b audiotechnik AG, Eugen-Adolff-Str. 134, D-71522 Backnang, Germany, Phone [phone], Fax [phone]_______