d & b audiotechnik Ci45 User manual

Ci45/Ci60/Ci90
Manual (9.2 EN)

Symbols on the equipment
Please refer to the information in the operating manual.
WARNING!
Dangerous voltage!
Contents
Safety precautions...............................................................3
Information regarding use of loudspeakers...............................................3
Ci45/Ci60/Ci90 ....................................................................4
Connections.........................................................................................................5
Operation with D6 or D12.............................................................................5
Operation with E-PAC......................................................................................6
Dispersion charcteristics...................................................................................7
Technical specifications.....................................................................................8
Manufacturer's declarations................................................9
EU conformity of loudspeakers (CE symbol)..............................................9
WEEE Declaration (Disposal)..........................................................................9
General Information
Ci45/Ci60/Ci90 Manual
Version 9.2 EN, 03/2008, D2086.E.09
Copyright © 2008 by d&b audiotechnik GmbH; all rights reserved.
Keep this manual with the product or in a safe place so that it is
available for future reference.
When reselling this product, hand over this manual to the new
customer.
If you supply d&b products, please draw the attention of your customers
to this manual. Enclose the relevant manuals with the systems. If you
require additional manuals for this purpose, you can order them from
d&b.
d&b audiotechnik GmbH
Eugen-Adolff-Strasse 134, D-71522 Backnang, Germany
Telephone [phone], Fax [phone]
E-mail: [email protected], Internet: www.dbaudio.com

Safety precautions
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 (9.2 EN) 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 .
NOTICE: Only operate Ci45/Ci60/Ci90 loudspeakers with a correctly configured
d&b amplifier, otherwise there is a risk of damaging the loudspeaker
components.
Weather resistant (WR) option
NOTICE: The WR option enables operation of loudspeakers in changing ambient
conditions, however it is not intended to enable permanent, unprotected
operation of loudspeakers outdoors.
- Provide an additional cover over the loudspeakers.
- Aim the cabinets either horizontally or with a downward tilt.
Cabinet design
Component Description
Cabinet Plywood to DIN 68705 Part III.
Equivalent to flame spread class 3.
Temperature range from –200° C to +100° C.
Wood joints Bonded waterproof to stress class D4.
Cabinet paint Two component PU paint
(seaworthy, chemical resistant and temperature
resistant to 110° C).
Screws Stainless steel (VA).
Driver cones Impregnated with silicone spray or coated.
Driver components/
Crossover network
The coil and pole plate are also treated with
silicone. The crossovers are sprayed with
silicone on both the solder and component
sides.
Ci45/Ci60/Ci90 Manual (9.2 EN) Page 4 of 10

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.
Installation loudspeakers with the weather resistant option are supplied
with a fixed cable (PG).
Cable type: H-07-RN-F 2 x 2.5 mm2/AWG 13
Standard length: 5.5 m (18 ft)
Pin equivalents of NL4 connectors and fixed cable option (PG) are listed
in the table below.
NL4 1+ 1– 2+ 2–
PG Brown (+) Blue (–)
Operation with D6 or D12
Select the controller setup Ci45, Ci60 or Ci90.
Within the D12 amplifier these are available in "Dual Channel" and
"Mix TOP/SUB" mode.
Up to a total of two Ci45/Ci60/Ci90 loudspeakers can be driven by
each D6 or D12 amplifier channel.
In applications with low continuous levels and low ambient temperatures
up to three cabinets can be connected to a D12 channel.
Controller settings
For acoustic adjustment the functions CUT, HFA and CPL can be
selected.
CUT circuit
Set to CUT, the Ci45/Ci60/Ci90 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 20k
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 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.
Ci45/Ci60/Ci90 Manual (9.2 EN) Page 5 of 10

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 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
CUT
HFA
SPKR
21 3 4 5 6 87
ON
Fig. 5: E-PAC Configuration for Ci60/Ci90
(E-PAC version 2)
To drive Ci60/Ci90 or Ci45 loudspeakers, select the controller setup
Ci60/Ci90 (CI6/CI9 - possible with E-PAC version 2 from serial number
Z2500.000.02-01313 and E-PAC version 3) or the Ci45 setup (possible
with E-PAC version 3).
For an E-PAC version 2, the setup is selected by setting the appropriate
DIP switches on the rear panel.
For an E-PAC version 3, the respective setup can be selected via the
encoder in conjunction with the LCD.
Selecting Ci45/Ci60/Ci90 mode enables the E-PAC to drive one
Ci45/Ci60/Ci90 loudspeaker. LO IMP mode configures the E-PAC to
drive a maximum of two loudspeakers with a 6 dB reduction in input
level to the loudspeakers.
The CUT and HFA settings are available on versions 2 and 3 and are
explained in the previous section "Operation with D6 or D12 -
Controller settings".
Ci45/Ci60/Ci90 Manual (9.2 EN) Page 6 of 10

Dispersion charcteristics
The graphs below show the dispersion angle vs 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 (9.2 EN) Page 7 of 10

Technical specifications
Fig. 12: Frequency response Ci45 standard,
CUT and HFA settings
-5
0
5
10
-10
-15
-20
-25
-30
20 100 1k 10k 20k
Fig. 13: Frequency response Ci60, standard,
CUT and HFA settings
-5
0
5
10
-10
-15
-20
-25
-30
20 100 1k 10k 20k
Fig. 14: Frequency response Ci90 standard,
CUT and HFA settings
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 D6...............................133/133/132 dB
(SPLmax peak, pink noise test signal with crest factor of 4)
Input level (100 dB SPL / 1 m).............................................................................–16 dBu
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. 15: Cabinet dimensions Ci45/Ci60/Ci90 in mm [inch]
Ci45/Ci60/Ci90 Manual (9.2 EN) Page 8 of 10

Manufacturer's declarations
EU conformity of loudspeakers (CE symbol)
This declaration applies to
- Ci45 Loudspeaker Z1405
- Ci60 Loudspeaker Z1400
- Ci90 Loudspeaker Z1401
manufactured by d&b audiotechnik GmbH.
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 respective EC directives including all applicable
amendments.
A detailed declaration is available on request and can be ordered from
d&b or downloaded from the d&b website at www.dbaudio.com.
WEEE Declaration (Disposal)
Electrical and electronic equipment must be disposed of separately from
normal waste at the end of its operational lifetime.
Please dispose of this product according to the respective national
regulations or contractual agreements. If there are any further questions
concerning the disposal of this product please contact d&b audiotechnik.
Ci45/Ci60/Ci90 Manual (9.2 EN) Page 9 of 10

D2086.E.09, 03/2008 © d&b audiotechnik GmbH
d&b audiotechnik GmbH, Eugen-Adolff-Str. 134, D-71522 Backnang, Germany, Phone [phone], Fax [phone]