D & b audiotechnik E3 Manual de usuario

Manual (3.1 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

E3 ..........................................................................................4

Connections.........................................................................................................4

Operation with D6 or D12.............................................................................5

Operation with E-PAC......................................................................................5

Operation with P1200A..................................................................................6

Dispersion characteristics.................................................................................6

Altering the HF horn dispersion.....................................................................7

Technical specifications.....................................................................................7

Manufacturer's declarations................................................8

EU conformity of loudspeakers (CE symbol)..............................................8

WEEE Declaration (Disposal)..........................................................................8

General Information

E3 Manual

Version 3.1 EN, 03/2008, D2072.E.03

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: [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.

E3 Manual (3.1 EN) Safety precautions - 1

Fig. 1: E3 loudspeaker

The E3 loudspeaker is a full range, two way bass-reflex enclosure which

is fitted with a single 6.5" LF driver passively connected to a 1" HF

compression driver. This is coupled to a constant directivity horn with a

90° x 60° dispersion. Illustrated in the drawing on the left is an E3 with

the standard 90° horizontal horn configuration. The horn can be

rotated through 90° for a reversed 60° x 90° dispersion.

The E3 cabinet is constructed from marine plywood with an impact

resistant paint finish. The front of the loudspeaker cabinet is fitted with a

rigid metal grill covered with a replaceable acoustically transparent

foam. Two mounting locations are incorporated for the connector plate

to facilitate various deployment options. Eight M8 threaded inserts are

provided for mounting brackets and rigging.

NOTICE: Only operate E3 cabinets with a correctly configured d&b amplifier,

otherwise there is a risk of damaging the loudspeaker components.

Connections

Passive

Crossover

1–

2–

1–

2–

Fig. 2: Wiring of the NL4 connectors

The E3 cabinet is fitted with two NL4 connectors. All four pins of both

connectors are wired in parallel. The E3 uses the pin assignments

1+/1–. Pins 2+/2– are designated to active d&b subwoofers.

Using one connector as the input, the second connector allows for direct

connection to additional cabinets.

Swapping the connector and blank plates

The connector plate is fitted to the E3 rear panel. Next to it, on the left

hand side panel, is a metal blank plate with the cabinet details and

serial number. The connector and blank plates can be swapped over to

allow mounting brackets to be fitted to the back panel of the cabinet or

to allow it to be placed on its back as a stage monitor.

To swap the connector and blank plates, proceed as follows:

Tools required: 2.5 mm Allen key.

- Remove the connector plate by undoing the four 2.5 mm hex head

screws and disconnecting the connector wiring.

- Undo the four 2.5 mm hex head screws securing the blank plate and

remove the plate.

- Swap the panels. To refit the connector plate at the desired position,

reconnect the wiring (red: 1+, black: 1–).

- Refit the connector plate and refasten the screws.

NOTICE: Ensure the gasket of the plate is in the correct position.

- Refit the blind plate in the same manner.

E3 Manual (3.1 EN) Page 4 of 8

Operation with D6 or D12

Select the controller setup E3.

Within the D12 amplifier this is available in "Dual Channel" and "Mix

TOP/SUB" mode.

Up to a total of four E3 loudspeakers can be driven by each D6 or D12

amplifier channel.

Controller settings

For acoustic adjustment the functions CUT, HFA and CPL can be

selected.

CUT circuit

Set to CUT, a high pass filter with a 110 Hz cut off frequency is inserted

in the controller signal path. The E3 is now configured for use with d&b

active subwoofers.

-5

-10

-15

-20

-25

-30

20 100 1k 10k 20k

Fig. 3: Frequency response correction of

HFA circuit

In HFA mode (High Frequency Attenuation), the HF response of the E3

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.

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 E3 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 dB.

REMOTE

LO IMP

DELAY ON

CUT

HFA

SPKR

213456 87

LO IMP

REMOTE

21 3 45 6

234

ONON

Version 1 Version 2

Fig. 5: E-PAC Configuration for E3

Operation with E-PAC

To drive the E3 cabinet the E-PAC has to be configured to E3 mode.

For an E-PAC version 1 or 2, the configuration is selected by setting the

appropriate DIP switches on the rear panel.

For an E-PAC version 3, the configuration is set via the encoder in

conjunction with an LCD.

Selecting E3 mode enables the E-PAC to drive up to two E3 cabinets.

LO IMP mode allows the E-PAC to drive four E3 cabinets with a 6 dB

reduction of input level to the loudspeakers.

The CUT and HFA settings are available. The characteristics of the CUT

and HFA settings are explained in the previous section "Operation with

D6 or D12 - Controller settings".

E3 Manual (3.1 EN) Page 5 of 8

Operation with P1200A

Fig. 6: Controls on E3

controller module

Up to four E3 cabinets can be driven by each P1200A power amplifier

channel fitted with an E3 controller module. Fitting one E3 and one

subwoofer controller module allows a single mainframe to drive four

E3s and two active subwoofer cabinets. All cabinets can be linked

together locally and fed by a single 4-wire cable from either mainframe

output connector

The CUT and HFA settings are available. The characteristics of the CUT

and HFA settings are explained in the previous section "Operation with

D6 or D12 - Controller settings".

Dispersion characteristics

The diagrams below show dispersion angle vs frequency plotted using

lines of equal sound pressure (isobars) at –6 dB and –12 dB.

Fig. 7: E3 isobar diagram configuration 90° horizontal (standard)

Fig. 8: E3 isobar diagram configuration 90° vertical

E3 Manual (3.1 EN) Page 6 of 8

Altering the HF horn dispersion

The E3 HF horn can be rotated through 90°. Two dispersion angles, 90°

and 60°, are engraved on the flange. The value on the horizontal edge

indicates the loudspeaker's horizontal dispersion angle.

Tools required: Phillips screwdriver, 3 mm Allen key.

- Remove the front grill by undoing the two Allen screws (M4x25 mm)

at the top and bottom of the grill.

- Undo the four Allen screws (M4x25 mm) which hold the horn in place

and rotate the horn through 90°.

NOTICE: Ensure the gasket of the horn is in the correct position.

- Refasten the horn and refit the front grill.

Technical specifications

Fig. 9: E3 frequency response standard

and CUT settings

E3 system data

Frequency response (–5 dB)....................................................................80 Hz - 18 kHz

Max. sound pressure (1 m, free field) with D12................................................123 dB

Max. sound pressure (1 m, free field) with D6..................................................122 dB

Max. sound pressure (1 m, free field) with P1200A........................................122 dB

(SPLmax peak, pink noise test signal with crest factor of 4)

Input level (100 dB SPL / 1 m)............................................................................–10 dBu

E3 loudspeaker

Nominal impedance...............................................................................................16 ohms

Power handling capacity (RMS / peak 10 ms).........................................120/480 W

Nominal dispersion angle...................................................................................90° x 60°

.............................................................................................(rotatable through 60° x 90°)

Components............................................................................................6.5" loudspeaker,

.................................................................................1" compression driver with CD horn

....................................................................................................Passive crossover network

Connections..............................................................................................................2 x NL4

Pin assignments...........................................................................................................1+/1–

Weight..........................................................................................................7.2 kg (15.9 lb)

Fig. 10: E3 cabinet dimensions in mm [inch] and angle ranges

E3 Manual (3.1 EN) Page 7 of 8

Manufacturer's declarations

EU conformity of loudspeakers (CE symbol)

This declaration applies to:

d&b E3 loudspeaker, Z0300

manufactured by d&b audiotechnik GmbH.

All production versions of this type 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.

d&b audiotechnik GmbH, Eugen-Adolff-Str. 134, D-71522 Backnang, Germany, Phone +49-7191-9669-0, Fax +49-7191-95 00 00

D2072.E.03, 03/2008 © d&b audiotechnik GmbH

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