d & b audiotechnik E8 User manual

EE8
Manual 2.2 en

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General information
E8 Manual
Version: 2.2 en, 05/2021, D2030.EN .02
Copyright © 2021 by d&b audiotechnik GmbH & Co. KG; all
rights reserved.
Keep this document with the product or in a safe place
so that it is available for future reference.
We recommend you to regularly check the d&b website for the
latest version of this document.
When reselling this product, hand over this document to the new
owner.
If you supply d&b products, please draw the attention of your
customers to this document. Enclose the relevant documents with
the systems. If you require additional documents for this purpose,
you can order them from d&b.
d&b audiotechnik GmbH & Co. KG
Eugen-Adolff-Str. 134, D-71522 Backnang, Germany
T [phone], F [phone]

1 Safety precautions.............................................................. 4
2 E8 loudspeaker..................................................................... 5
2.1 E8 Product description................................................................ 5
2.2 Connections................................................................................ 5
2.3 Operation.................................................................................... 7
2.3.1 Controller settings.................................................................... 8
2.3.2 Operation with E-PAC............................................................. 8
2.4 Dispersion characteristics........................................................... 9
2.5 Technical specifications............................................................ 11
3 Manufacturer's Declarations........................................ 12
3.1 EU conformity of loudspeakers (CE symbol).......................... 12
3.2 WEEE Declaration (Disposal).................................................. 12
Contents
d&b E8 Manual 2.2 en 3

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 E8 Manual 2.2 en4

2.1 E8 Product description
The E8 is a high performance multipurpose loudspeaker employing
an integrated 8"/1" exit coaxial driver design with neodymium
magnet and constant directivity horn loading. The horn with its 90°
x 50° (hor. x vert.) dispersion pattern can easily be rotated
through 90° providing a 50° x 90° pattern without the use of
tools.
The E8 is a two-way design with a built-in passive crossover
network. Its frequency response extends from 62 Hz to 18 kHz.
The enclosure is constructed from polyurethane integral hard foam
with an impact resistant paint finish. The cabinet shape allows use
either in a vertical or horizontal orientation as well as deployment
as a stage monitor. The front of the loudspeaker cabinet is
protected by a rigid metal grill backed by an acoustically
transparent foam.
The loudspeaker cabinet incorporates a handle, a pole mount
socket and six M10 threaded inserts to connect to different rigging
accessories like Z5350 Flying bracket E8, Z5020 Flying adapter
02, Z5025 Flying adapter 03 or a Z5351 Horizontal bracket E8.
An additional M10 thread in the rear panel can be used to
connect a safety wire.
The connector panel of the E8 cabinet is recessed and tilted to
allow deployment as a stage monitor. With the panel on the right
hand side, the cabinet is oriented correctly.
Cabinet options
The special color (SC) version of the cabinet is available in all
colors of the RAL color table. It comes without high stand flange
and handles. The respective openings of the cabinet are covered
by plates in cabinet color. The connector type is NL4.
2.2 Connections
The cabinet is fitted with NLT4 F/M connectors. All four pins of
both connectors are wired in parallel. The cabinet uses the pin
assignments 1+/1–. Pins 2+/2– are designated to actively driven
subwoofers. Using one connector as the input, the second
connector allows for direct connection to a second cabinet.
NLT4 F/M 1+ 1– 2+ 2– -
EP5 1 2 3 4 5
E8 loudspeaker
and monitor position
SC variants, top and bottom view
Connector wiring
2 E8 loudspeaker
d&b E8 Manual 2.2 en 5

WR option (Weather Resistance)
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.
A number of d&b loudspeakers are available in special options
suitable for different types of installed applications and
environmental conditions. The following options are available:
▪ Weather resistant (WR): This option is suitable for outdoor use.
The cabinets have an impact and weather protected black PCP
(Polyurea Cabinet Protection) finish.
▪ Sea water resistant (SWR): This option is suitable for outdoor
use, especially in wet and acid or salty environments.
WR cabinets are equipped with a recessed connector panel
including a Faston type connector (2 x 6.3 mm, female). A cover
plate which accepts single or dual PG cable glands (Type PG13.5
for cable diameters from 6 - 12 mm) is enclosed, as shown in the
graphic opposite.
To install the fixed connection cable, please proceed as follows:
Tools required: Screw driver (#T20).
Note: Observe the correct polarity of the cable
Brown (+) / Blue (—).
1. Insert the connection cable through the PG screwing and
connect the male connector to the female connector.
2. Push the cover plate towards the connector panel until it fits
into place.
3. Fix the cover plate to the connector panel using the four
countersunk screws.
Faston type connector, male single PG (standard), dual PG
(optional)
d&b E8 Manual 2.2 en6

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.
Applicable d&b amplifiers:
D80/D20/D12/D6/10D/30D.
Standard operation
Application Setup Cabinets per
channel
E8 E8 4
For applicable d&b amplifiers, the controller setup is available in
Dual Channel and/or Mix TOP/SUB mode. For combinations with
active subwoofers fed by a single 4-wire cable Mix TOP/SUB
mode must be selected.
Passive operation
Application Setup Combination per
channel
E8
with E12X-SUB
E8-X 3
In Dual Channel mode, the "X" setup can be selected to drive the
cabinet in combination with the E12X subwoofer on the same
channel.
The setup provides a dedicated correction for the combined
frequency response of the system.
d&b E8 Manual 2.2 en 7

2.3.1 Controller settings
For acoustic adjustment the functions CUT, HFA and CPL can be
selected.
CUT mode
Set to CUT, the low frequency level is reduced. The cabinet is now
configured for use with actively driven d&b subwoofers.
HFA mode
In HFA mode (High Frequency Attenuation), the HF response of the
system is rolled off. HFA provides a natural, balanced frequency
response when a cabinet 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 function
The CPL (Coupling) function compensates for coupling effects
between the cabinet and close boundary surfaces or when the
cabinet is used as a stage monitor. CPL begins gradually around
1 kHz, with the maximum attenuation below 250 Hz. To achieve a
balanced frequency response, the CPL function 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.
2.3.2 Operation with E-PAC
Selecting E8 mode enables the E-PAC to drive up to two E8
loudspeakers. LO IMP mode configures the E-PAC to drive a
maximum of four E8 loudspeakers with a 6 dB reduction in input
level to the loudspeakers.
For acoustic adjustment the CUT and HFA modes are available.
The characteristics are described in the previous section.
-5
0
5
10
-10
-15
-20
-25
-30
20 100 1k 10k 20k
Frequency response correction in HFA mode
Frequency response correction of the CPL function
d&b E8 Manual 2.2 en8

2.4 Dispersion characteristics
The following graphs show dispersion angle over frequency of a
single cabinet plotted using lines of equal sound pressure (isobars)
at –6 dB and –12 dB.
Isobar diagram horizontal Isobar diagram vertical
Isobar diagram horizontal Isobar diagram vertical
d&b E8 Manual 2.2 en 9

Altering the HF horn dispersion
The HF horn can be rotated through 90° within the coaxial driver
assembly.
CAUTION!
Potential risk of personal injury due to falling
objects.
▪ Set the correct horn orientation before suspending the cabinet.
▪ Do not remove the front grill while the cabinet is mounted or
flown above the ground.
Tools required: screw driver or an appropriate coin.
1. Disconnect the loudspeaker.
2. Undo the quick locks at the top and bottom of the front grill
and remove the grill.
3. Pick the horn at its outer edges and turn it until it snaps into the
desired orientation.
4. Relocate and fix the front grill.
↳Make sure both quick locks of the front grill are locked
correctly before using the loudspeaker.
Rotating the horn
d&b E8 Manual 2.2 en10

2.5 Technical specifications
E8 system data
Frequency response (–5 dB standard mode) 62 Hz - 18 kHz
Frequency response (–5 dB CUT mode) 120 Hz - 18 kHz
Max. sound pressure (1 m, free field)
with D6/10D/E-PAC 126 dB
with D12/D20/30D 129 dB
with D80 129 dB
(SPLmax peak, pink noise test signal with crest factor 4)
E8 loudspeaker
Nominal impedance 16 ohms
Power handling capacity (RMS/peak 10 ms) 150/800 W
Nominal dispersion angle (hor. x vert.) 90° x 50°
Components 8" driver with neodymium magnet
coaxial 1" exit compression driver with 1.75" coil and rotable CD horn
Passive crossover network
Connections 2 x NLT4 F/M
Optional: 2 x EP5
SC option: 2 x NL4 M
WR option: Faston type connector (2 x 6.3mm)
Pin assignments NLT4 F/M: 1+/1–
EP5: 1+/2–
WR option: Brown + / Blue –
Weight 7.3 kg (16.1 lb)
E8 frequency response, standard and CUT modes.
E8 cabinet dimensions in mm [inch]
d&b E8 Manual 2.2 en 11

3.1 EU conformity of loudspeakers (CE symbol)
This declaration applies to:
d&b Z0620 E8 loudspeaker
manufactured by d&b audiotechnik GmbH & Co. KG.
All product variants 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.
3.2 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.
WEEE-Reg.-Nr. DE: 13421928
3 Manufacturer's Declarations
d&b E8 Manual 2.2 en12

D2030.EN .02, 05/2021 © d&b audiotechnik GmbH & Co. KG
www.dbaudio.com