d&b E12 User Manual

E12, E12-D Manual (1.2 EN)
Symbols on the equipment
Please refer to the information in the operating manual.
WARNING! Dangerous voltage!
Contents
Information regarding use of loudspeakers.............................................3
E12, E12-D ..........................................................................4
Connections......................................................................................................5
Operation with D6 or D12...........................................................................5
Operation with E-PAC...................................................................................6
Dispersion characteristics...............................................................................7
Altering the HF horn dispersion...................................................................8
Technical specifications...................................................................................9
Manufacturer's declarations............................................10
EU conformity of loudspeakers (CE symbol)..........................................10
WEEE Declaration (Disposal).....................................................................10
General Information
E12, E12-D Manual
Version 1.2 EN, 10/2008, D2031.EN .01
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 +49-7191-9669-0, Fax +49-7191-95 00 00 E-mail: docadmin@dbaudio.com, 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 non­critical 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.
E12, E12-D Manual (1.2 EN) Safety precautions - 1
Fig. 1: E12 loudspeaker
NOTICE:

E12, E12-D

The E12 is a high performance multipurpose loudspeaker employing an integrated 12”/1.3” exit coaxial driver design with neodymium magnet and constant directivity horn loading. It is available in two different dispersion versions, the E12 providing a 80° x 50° dispersion pattern (hor. x vert.), the E12-D a wider 110° x 50° pattern. Both horns are easily rotatable through 90° without the use of tools, providing 50° x 80° or 50° x 110° dispersion patterns.
The E12 is a two way design with a built in passive crossover network. Its frequency response extends from 50 Hz to above 17 kHz.
E12 and E12-D have identical enclosures constructed from polyurethane integral hard foam with an impact and weather resistant black 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 in front of an acoustically transparent foam. The grill can easily be removed without tools to modify the horn orientation.
The cabinets incorporate a pair of handles, a recessed pole mount socket and six M10 threaded inserts to connect to different rigging accessories like Z5352 E12 Flying bracket, Z5354 E8/E12 Flying adapter, Z5020 Flying adapter 02, Z5025 Flying adapter 03 or Z5353 E12 Horizontal bracket. An additional M10 thread in the rear panel can be used to connect a safety wire.
Only operate E12 loudspeakers with a correctly configured d&b amplifier, otherwise there is a risk of damage to the loudspeaker components.
Fig. 2: E12, E12-D SC/WR versions top and bottom view
Please note that E12 and E12-D require different controller setups and therefore cannot be wired in parallel.
E12, E12-D cabinet options
The special color (SC) version of the cabinet is available in all colors of the RAL color table. It comes without hi stand flange and handles. The respective openings of the cabinet are covered by plates in cabinet color. The connector type is NL4.
The weather resistant (WR) version is available in black only. It also comes without hi stand flange and handles. It is equipped with a fixed input cable (5 m / 16.4 ft, type H-07-RN-F 2 x 2.5 mm2/AWG 13).
E12, E12-D Manual (1.2 EN) Page 4 of 10

Connections

The E12 cabinet is fitted with a pair of EP5 connectors. All five pins of both connectors are wired in parallel. The E12 uses the pin assignments 1/2. Pins 3/4 and 5 are designated to active subwoofers, where pin 5 is used for SenseDrive (only available when using a D12 amplifier and 5-wire cabling). Using the male connector as the input, the female connector allows for direct connection to additional loudspeakers.
The E12 can be supplied with NL4 connectors as an option.
Fig. 3: Connector wiring
Pin equivalents of EP5 and NL4 connectors and the fixed cable option are listed in the table below.
EP5
NL4
Fixed cable (PG)
1 2 3 4 5
1+ 1– 2+ 2– n.a.
Brown (+) Blue (–)

Operation with D6 or D12

Select the controller setups E12 or E12-D.
Within the D12 amplifier they are available in "Dual Channel" and "Mix TOP/SUB" mode. For combinations with active subwoofers fed by a single 4/5-wire cable "Mix TOP/SUB" mode must be selected.
D6 and D12 provide the additional setups E12-X and E12-DX to be selected when E12 or E12-D cabinets are used in combination with passive E15X-SUB loudspeakers on the same channel. They provide a dedicated correction for the combined frequency response of these systems.
Selecting the E12 (E12-D) setup enables up to a total of two E12 (E12­D) loudspeakers to be driven by the respective D12 or D6 channel.
Selecting the E12-X (E12-DX) setup enables a combination of one E12 (E12-D) and one E15X-SUB to be driven by the respective D12 or D6 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 E12 low frequency level is reduced. The E12 is now configured for use with E15X-SUB in active mode or other d&b active subwoofers.
E12, E12-D Manual (1.2 EN) Page 5 of 10
-5
0
5
10
-10
-15
-20
-25
-30 20
100 1k 10k
20k
Fig. 4: Frequency response correction of HFA circuit
HFA circuit
In HFA mode (High Frequency Attenuation), the HF response of the E12 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.
CPL circuit
The CPL (Coupling) circuit compensates for coupling effects when building closely coupled arrays or when the cabinet is used as a stage monitor. CPL begins gradually at 1 kHz, with maximum attenuation below 250 Hz, providing a balanced frequency response when E12 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).
Fig. 5: Frequency response correction of CPL circuit

Operation with E-PAC

Selecting E12 or E12-D mode enables the E-PAC to drive one E12 loudspeaker. LO IMP mode configures the E-PAC to drive a maximum of two E12 loudspeakers with a 6 dB reduction in input level to the loudspeakers.
For acoustic adjustment the functions CUT and HFA can be selected. The characteristics of the CUT and HFA settings are explained in the previous section "Operation with D6 or D12".
E12, E12-D Manual (1.2 EN) Page 6 of 10

Dispersion characteristics

The graphs below show dispersion angle over frequency of a single E12 cabinet plotted using lines of equal sound pressure (isobars) at – 6 dB and –12 dB.
Fig. 6: Isobar diagram E12 horizontal, standard setup
Fig. 8: Isobar diagram E12 horizontal, horizontal setup with the horn rotated
Fig. 7: Isobar diagram E12 vertical, standard setup
Fig. 9: Isobar diagram E12 vertical, horizontal setup with the horn rotated
Fig. 10: Isobar diagram E12-D horizontal, standard setup
Fig. 12: Isobar diagram E12-D horizontal, horizontal setup with the horn rotated
Fig. 11: Isobar diagram E12-D vertical, standard setup
Fig. 13: Isobar diagram E12-D vertical, horizontal setup with the horn rotated
E12, E12-D Manual (1.2 EN) Page 7 of 10

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.
- 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. CAUTION: Make sure both quick locks of the front grill are locked
correctly before using the loudspeaker.
E12, E12-D Manual (1.2 EN) Page 8 of 10
Fig. 14: E12 frequency response, standard
350 [13.8]
580 [22.8]334 [13.2]
and CUT settings
Fig. 15: E12-D frequency response, standard and CUT settings

Technical specifications

E12, E12-D system data
Frequency response (–5 dB standard)..................................................50 Hz ... 18 kHz
Frequency response (–5 dB CUT mode)............................................100 Hz ... 18 kHz
Max. sound pressure (1 m, free field) E12/E12-D with D12................134/133 dB
Max. sound pressure (1 m, free field) E12/E12-D with D6...................131/130 dB
(SPLmax peak, pink noise test signal with crest factor of 4)
Input level (100 dB-SPL/1 m).................................................................................–17 dBu
E12, E12-D loudspeakers
Nominal impedance....................................................................................................8 ohms
Power handling capacity (RMS / peak 10 ms)........................................300/1600 W
Nominal dispersion angle (hor. x vert.).....................................80° x 50°, 110° x 50°
Components.............................................................12“ driver with neodymium magnet
.................coaxial 1.3” exit compression driver with 3“ coil and rotatable CD horn
.......................................................................................................Passive crossover network
Connections...................................................................................................................2 x EP5
.........................................................................................Optional and SC option: 2 x NL4
............WR option: Fixed cable 5 m (16.4 ft) (H-07-RN-F 2 x 2.5 mm2/AWG 13)
Pin assignments..........................................................................................................EP5: 1/2
.................................................................................................................................NL4: 1+/1–
...............................................................................................Fixed cable: Brown + / Blue –
Weight..................................................................................................................16 kg (35 lb)
Fig. 16: E12, E12-D cabinet dimensions in mm [inch]
E12, E12-D Manual (1.2 EN) Page 9 of 10

Manufacturer's declarations

EU conformity of loudspeakers (CE symbol)

This declaration applies to
E12/E12-D loudspeaker, Z0601/Z0602
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.
D2031.EN .01, 10/2008 © d&b audiotechnik GmbH
d&b audiotechnik GmbH, Eugen-Adolff-Str. 134, D-71522 Backnang, Germany, Phone +49-7191-9669-0, Fax +49-7191-95 00 00
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