d b audiotechnik E8 Loudspeaker Instruction Manual
- June 10, 2024
- d b audiotechnik
Table of Contents
d b audiotechnik E8 Loudspeaker Instruction Manual
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 deployment. Pay attention to the correct application and maximum load capacity of the accessories as detailed in our specific “Mounting instructions” or in our “Rigging manuals”.
- Ensure that all additional hardware, fixings and fasteners used for 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 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.
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.
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.
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.
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 (—).
- Insert the connection cable through the PG screwing and connect the male connector to the female connector.
- Push the cover plate towards the connector panel until it fits into place.
- Fix the cover plate to the connector panel using the four countersunk screw
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/D40/D20/D12/D6/40D/30D/10D.
Controller settings
For acoustic adjustment the functions CUT, HFA and CPL can be selected.
UT 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.
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.
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.
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.
- Disconnect the loudspeaker.
- Undo the quick locks at the top and bottom of the front grill and remove the grill.
- Pick the horn at its outer edges and turn it until it snaps into the desired orientation.
- Relocate and fix the front grill. ↳Make sure both quick locks of the front grill are locked correctly before using the loudspeaker.
Technical specifications
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/D40/D80/30D/40D 129 dB (SPLmax peak, pink noise test signal
with crest factor 4)
Loudspeaker
Nominal impedance 12 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 NLT4 F/M Optional: 2 x EP5 SC option: 2 x NL4 M WR option:
Faston type connector (2 x 6.3 mm)
Pin assignments NLT4 F/M: 1+/1– EP5: 1+/2– WR option: Brown + / Blue –
Weight 7.3 kg (16.1 lb)
Conformity of loudspeakers
This declaration applies to:
d &b Z0620 E8 loudspeaker
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
directives including all applicable amendments. Detailed and applicable
declarations are available on request and can be ordered from d&b or
downloaded from the d&b website at www.dbaudio.com.
WEEE Declaration (Disposal)
WEEE-Reg.-Nr. DE: 13421928 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.
References
Read User Manual Online (PDF format)
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