d & b audiotechnik Yi8 User manual

YYi8/Yi12
Manual 1.1 en

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General information
Yi8/Yi12 Manual
Version: 1.1 en, 08/2014, D2712.EN .01
Copyright © 2014 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
T [phone], F [phone]
[email protected], www.dbaudio.com

1. Safety precautions......................................................... 4
1.1. Information regarding the use of loudspeakers......... 4
2. Yi8/Yi12 loudspeaker................................................... 5
2.1. Product description...................................................... 5
2.2. Connections................................................................. 6
2.3. Operation.................................................................... 7
2.3.1. Controller settings.................................................... 8
2.4. Dispersion characteristics............................................ 9
2.5. Technical specifications............................................... 9
3. Manufacturer's declarations.................................... 11
3.1. EU conformity of loudspeakers (CE symbol)........... 11
3.1.1. WEEE Declaration (Disposal)............................... 11
Contents
d&b Yi8/Yi12 Manual 1.1 en 3

1.1. Information regarding the use of loudspeakers
Potential risk of personal injury
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.
Potential risk of material damage
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.
1. Safety precautions
d&b Yi8/Yi12 Manual 1.1 en4

2.1. Product description
The Yi8 line array module is intended for small to medium sound
reinforcement application. When the Y Flying frame is used, up to
24 cabinets can be flown in vertical columns producing a constant
directivity dispersion pattern of 80° in the horizontal plane.
The Yi12 line array module is acoustically and mechanically
compatible with the Yi8 providing a 120° horizontal dispersion.
The Yi8/Yi12 cabinets are passive 2-way designs, both housing
2 x 8" neodymium LF drivers, one 1.4" exit HF compression driver
with a 3" diaphragm mounted to a dedicated wave shaping
device and a passive crossover network.
The wave segments of each cabinet couple without gaps and sum
up coherently. Splay angles between adjacent cabinets can be set
in the range from 0° to 14° with a 1° resolution.
The two LF drivers are positioned in a dipolar arrangement
providing an exceptional dispersion control even at lower
frequencies with the nominal horizontal dispersion angle being
maintained down to 500 Hz.
The frequency response extends from 54 Hz to above 19 kHz.
The cabinets are constructed from marine plywood and have an
impact and weather protected PCP (Polyurea Cabinet Protection)
finish. The fronts of the loudspeaker cabinets are protected by a
rigid metal grill backed by an acoustically transparent foam.
Yi-Series rigging components and arrays
Yi-Series arrays may consist of a combination of Yi8 and Yi12
loudspeakers and/or Yi-SUB cardioid subwoofers.
Cabinets are mechanically connected using the rigging strands on
both sides of the cabinet front and a central strand at the rear of
the cabinet. All necessary rigging components are mounted to the
cabinet and fold out or slide out when needed.
A detailed description of the Yi-Series rigging components is given
in the Yi-Series Rigging manual which is provided with the Y Flying
frame.
A detailed description of planning and designing Yi arrays is given
in the technical information "TI 385 d&b Line array design,
d&b ArrayCalc" which is also provided with the Y Flying frame.
The d&b ArrayCalc simulation software can be downloaded from
the d&b website at www.dbaudio.com.
2. Yi8/Yi12 loudspeaker
d&b Yi8/Yi12 Manual 1.1 en 5

2.2. Connections
The cabinets are fitted with a pair of NL4 connectors and a two
pole screw terminal block (ST). All four pins of both NL4
connectors are wired in parallel. The cabinets use the pin
assignments 1+/1–. Pins 2+/2– are designated to active
subwoofers.
Cabinets with the weather resistant option (WR) are equipped with
a fixed input cable (PG type, H07-RN-F, 2 x 2.5 mm2 (AWG 13),
standard length 5.5 m (18 ft).
Pin equivalents of the applicable connector options are listed in the
table below.
NL4 1+ 1– 2+ 2–
ST + – n.a. n.a.
PG Brown (+) Blue (–) n.a. n.a.
Fixed cable connection
The Yi8 and Yi12 loudspeakers are each supplied with a cover
plate [1] and a rubber grommet feed through [2]. For indoor
operation, these items can be used to hide the connector panel, if
required. For unprotected outdoor operation, the connector panel
must be covered, i.e. both items must be used to achieve an IP
degree of protection of IP34.
To install the fixed cable connection, proceed as follows:
Tools required: Philips screw driver (#PH2).
1. Remove the knockout opening in the cover plate [1] and
attach the rubber grommet [2] correspondingly.
2. Insert the connection cable through the rubber grommet.
3. Undo the four screws of the connector panel.
4. Connect the cable wires to the screw terminal.
Þ Observe the correct polarity!
5. Push the cover plate towards the connector panel until it fits
into place.
6. Finally fix the cover plate together with the connector panel
using all screws.
passive
crossover
Connector wiring
Cover plate and rubber grommet
Step 1
d&b Yi8/Yi12 Manual 1.1 en6

Step 2 Step 3 Step 4/5 Step 6
Installing the fixed cable connection
NL4 connection with cover plate
The two NL4 connector sockets of the cabinet's connector panel
are located in a recess to allow the use of the cover plate [1]
together with NL4 cable connectors, as shown in the graphic
opposite.
Note: Neutrik NL4FC type connectors must be used for this
option.
The cover plate is equipped with two knockout openings to allow
daisy chaining of the loudspeaker.
To use the NL4 connection, proceed in the same manner as
described in the previous section .
2.3. Operation
NOTICE!
Only operate d&b loudspeakers with a correctly configured d&b
amplifier, otherwise there is a risk of damaging the loudspeaker
components.
The applicable amplifiers provide two setups ("Arc" or "Line") for
the Yi8 and Yi12 loudspeakers. These are available in Dual
Channel or Mix TOP/SUB mode.
Selecting the respective Y8 or Y12 setup enables up to two Yi8 or
Yi12 cabinets to be driven by the respective amplifier channel.
Arc and Line setups
The selection of Arc or Line depends on the curvature of the array.
Both setups may be used within one array.
The Arc setup is intended for line array loudspeakers when used in
curved array sections.
The Line setup is used for long throw array sections with three or
more consecutive splay settings of 0°, 1° or 2°. Compared to the
Arc setup, the mid/high range is reduced to compensate for the
extended nearfield.
NL4 cable connection with cover plate [1]
d&b Yi8/Yi12 Manual 1.1 en 7

The transition from Line to Arc configuration within the array is
made according to the splay progression but may allow for certain
deviations due to the wiring of the cabinets in groups of up to two.
2.3.1. Controller settings
For acoustic adjustment the functions CUT, CPL and HFC can be
selected.
CUT circuit
Set to CUT, the low frequency level of the cabinets is reduced. The
Yi8/Yi12 array is now configured for use with the d&b Yi-SUB or
J-SUB subwoofers.
CPL circuit
The CPL (Coupling) circuit compensates for coupling effects
between the cabinets of an array. CPL begins gradually around
2 kHz, with the maximum attenuation below 100 Hz. As coupling
effects increase with the length of the line array, the CPL circuit can
be set to dB attenuation values between 0 and –9. With higher
attenuation values the corner frequency of the filter shifts towards
lower values.
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.
Note: Make sure that all cabinets within the line array are
operated with the same CPL setting.
HFC circuit
Selecting the HFC (High Frequency Compensation) circuit
compensates for the loss of high frequency energy due to air
absorption when loudspeakers are used to cover far field listening
positions.
The HFC circuit has two settings (HFC1 and HFC2) for different
distances the cabinets need to cover. The settings should be used
selectively; HFC1 for cabinets covering distances larger than 25 m
(82 ft) and HFC2 for those covering distances larger than 50 m
(164 ft).
The compensation is adjusted for a typical relative humidity of
40 %. With lower humidity the absorption by air increases
therefore the distances where the respective HFC setting provides a
correct equalization are shorter than indicated above.
Using the HFC function provides the correct sound balance
between close and remote audience areas, whilst all amplifiers
driving the array can be fed with the same signal.
Frequency response correction of CPL circuit
Frequency response correction of HFC circuit
d&b Yi8/Yi12 Manual 1.1 en8

2.4. Dispersion characteristics
The graphs below show the horizontal dispersion angle over
frequency plotted using lines of equal sound pressure (isobars) at
–6 dB and –12 dB. The nominal dispersion is maintained above
600 Hz, while a useful horizontal dispersion control is achieved
down to 500 Hz.
Isobar diagram Yi12 horizontal
2.5. Technical specifications
Yi8/Yi12 system data
Frequency response (–5 dB standard) 54 Hz - 19 kHz
Frequency response (–5 dB CUT mode) 100 Hz - 19 kHz
Max. sound pressure (1 m, free field)
Yi8 with D80/D12/D6 139 dB/137 dB/134 dB
Yi12 with D80/D12/D6 139 dB/137 dB/134 dB
(SPLmax peak, pink noise test signal with crest factor of 4)
Isobar diagram Yi8 horizontal
Yi8 frequency response, standard and CUT modes
d&b Yi8/Yi12 Manual 1.1 en 9

Yi8/Yi12 loudspeaker
Nominal impedance 8 ohms
Power handling capacity (RMS/peak 10 ms) 400/1600 W
Nominal dispersion angle (horizontal) Yi8 80°
Nominal dispersion angle (horizontal) Yi12 120°
Splay angle setting 0° ...14°
1° increment
Components 2 x 8“ driver
1 x 1.4” exit compression driver
Passive crossover network
Connections 2 x NL4
1 x screw terminal (ST - up to 4 mm2/AWG 11)
Optional fixed cable (PG):
H07-RN-F, 2 x 2.5 mm2 (AWG 13), 5.5 m (18 ft)
Pin assignment NL4: 1+/1–
Fixed cable (PG): Brown: (+) / Blue: (–)
Weight 20 kg (44 lb)
Yi8/Yi12 cabinet dimensions in mm [inch]
Yi12 frequency response, standard and CUT modes
d&b Yi8/Yi12 Manual 1.1 en10

3.1. EU conformity of loudspeakers (CE symbol)
This declaration applies to:
d&b Yi8 loudspeaker, Z0717
d&b Yi12 loudspeaker, Z0718
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.
3.1.1. 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.
3. Manufacturer's declarations
d&b Yi8/Yi12 Manual 1.1 en 11

D2712.EN .01, 08/2014 © d&b audiotechnik GmbH
www.dbaudio.com