Ecler EPC7000 User manual

USER MANUAL

MANUAL DE INSTRUCCIONES

NOTICE

D’UTILISATION

EPC7000

E

C

LER

AUDIO CREATIVE POWER

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EPC7000 INSTRUCTION MANUAL

1. IMPORTANT REMARK 04

1.1. Safety Precautions 04

2. INTRODUCTION 04

3. INSTALLATION 07

3.1. Placement and mounting 07

3.2. Fixing and hanging the system 08

3.3. Mounting the wheels 08

3.4. Connecting the system 08

3.5. Interconnecting two or more systems 09

4. DIAGRAMS 26

5. TECHNICAL CHARACTERISTICS 29

All numbers subject to variation due to production tolerances. ECLER SA reserves the right to make changes

or improvements in manufacturing or design which may affect specifications.

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1. IMPORTANT REMARK

Congratulations! You are the owner of a carefully designed and manufactured equipment.

We thank you for having purchased our EPC processed system.

It is VERY IMPORTANT that you read this manual before connecting the unit in order to

obtain its maximum performance.

We recommend our authorised Technical Services whenever any maintenance task

should be needed so that optimum operation shall be achieved.

1.1. Safety Precautions

The EPC is capable of delivering maximum sound pressure levels greater than 130dB SPL

at 1 meter. These sound pressure levels can cause permanent damage to human hearing.

Protect your ears when working at high power next to the system.

The EPC is a closed sound system designed to operate exclusively with ECLER

amplifiers and the EPC200 processor, not only offering a well-balanced sound, but also ensuring

perfect operating safety. Using other components than the specified ones, be it from ECLER or

from other manufactures, will both worsen the system performance and mean a risk of serious

damage to your loudspeakers.

The mids-highs enclosures EPC215D should be connected with 4-core cables. DO NOT

use conventional 2-core cabling (see paragraph 3.4)

Never hang the enclosures from the hole cover plates found on the sides of the

enclosures, use ATM’s MEGS PIVOTAL SERIES rigging system (see paragraph 3.2)

2. INTRODUCTION

EPC7000 PROCESSED SOUND SYSTEM

The EPC7000 (ECLER PROCESSED CABINET) has been specially designed for fixed or

mobile installations where high sound pressure levels and exceptional audio quality is required.

We are talking about a processed system offering 6136W RMS/4Ω, capable of delivering a

maximum SPL level of 148dB/1m.

The system consists of two EPC215D midrange / high frequency enclosures, two

EPC218D subwoofer enclosures, three SPM TECHNOLOGY power amplifiers (PAM1100,

PAM4100 and PAM6100) and the EPC200 processor. This last component, apart from actively

dividing the audio spectrum into three bands, equalizes each of these bands and allows

accurate phase correction on each way. This process is combined with the anticlip circuits from

the high frequencies amplifier PAM1100 and the A

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SP (Analog Autogain Signal Processor). The

A

2

SP is an Autogain protection and intelligent anticlip system controlled by an VCA (Voltage

Controlled Amplifier) and is included with the 4100 and 6100 amplifiers. This anticlip system

has different operation levels depending on the transient signal type.

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STEP BY STEP THROUGH THE EPC7000

REDUCED DIMENSIONS AND WEIGHT HIGH PERFORMANCE

In the last ten years, the evolution of professional sound systems has been certainly

influenced by two facts: The reduction of acoustic cabinet size and the ever increasing output

power of amplifiers. Systems are now lighter, smaller and more portable, while the sound

quality approaches more and more that of a Hi-Fi system. Electronics is the key of this

advances. The components generally called "processors" are able to push a sound system to its

limits. These intelligent electronic systems, sometimes contained in the amplifier itself, but in

most cases mounted into dedicated processor units, constantly monitor the systems operating

conditions. The result is a total reliability as far as the systems behaviour is concerned, which is

the main obsession when installing professional sound systems.

THREE-WAY SYSTEMS: THE PERFECT SOLUTION

This is the optimal system to achieve faithful voice and music reproduction. It's a fact

that the human ear is more sensible in the central portion of the audible spectrum, which

enables us to easily recognize any kind of irregularity in this frequency range. This justifies the

need for a dedicated driver for the reproduction of the human voice, which ranges from 200 to

1500 Hz).

The overall structure of the EPC systems is based on two cabinets: The first one only

reproduces the lowest frequencies below 150 Hz, while the second one reproduces both the

midrange (from 150 Hz to 1500 Hz) and the high frequencies (from 1500 Hz to 22 kHz).

HYBRID BASS-REFLEX-TYPE CABINETS

This groundbreaking enclosure is the result of combining conventional bass-reflex

philosophy and a diffusion system half the way between direct radiation and a folded horn

structure.

The massive excursion subbass speakers must suffer bring up important distortion. This

distortion is caused by the fact that the voice coils often move far away from their rest

position. Thus, the magnetic flux density gets reduced. The bass cabinets in the EPC7000

system use two electrically phase-inverted parallel mounted 18'' (45,7 cm) drivers. One driver

is mounted in opposite direction. With this configuration, when the voice coil of the first driver

moves forward, the second voice coil moves backwards, resulting in a remarkable cancellation

of second-order harmonic distortion and a slight cancellation of third-order distortion. A very

clean sound and an excellent "cone control" are consequently obtained even in critical

situations. It has to be considered that conventional subwoofers at high output levels may

reach up to 10 % distortion.

Each loudspeaker is mounted into a separate acoustic enclosure, including a dedicated

port. This reminds "transmission line" systems. The angled position of the drivers and the

separation wall share similarities with folded horn-loaded systems. The implemented solution is

in fact a bass-reflex concept with a certain port Q value in the way between pure direct

radiation and horn radiation, using the advantage of both worlds.

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The bass-reflex system inverts the phase of sound radiated from the rear of the speaker

in order to widen the low-range playback boundary. The accurate calculation of the bass-reflex

port dimensions is a key factor when evaluating the success of an acoustic enclosure design.

ECLERs Research Department has created SIMBOX, software based on W. Marshall Leach's

publications. It converts the different physical loudspeaker and enclosure parameters into

discreet R-L-C elements and controlled sources. The software then communicates via macros

with an electronic simulation package, which performs all calculations and facilitates graphical

representation.

Both 18'' (45,7 cm) drivers mounted on the EPC218D feature a huge permanent

ceramic magnet and 114 mm voice coils. They are able to withstand excursions up to 20 mm

and 1600 Wrms input power.

DIRECT RADIATION WITH TWIN SYSTEMS

Very high radiation levels can be achieved with this method, which consists of mounting

two identical drivers into the same enclosure. The drivers need to be perfectly matched in their

characteristics, as otherwise unwanted mutual loading may develop. This technique represents

a 3dB radiation increment in comparison to single driver configurations.

Both 15'' (38,1 cm) speakers feature 100 mm voice coils and withstand maximum

excursion up to 4mm. For the high-frequency way, a neodymium motor has been used along

with a 2'' ferrofluid voice coil and a titanium diaphragm coupled to a plastic-moulded

antiresonant constant-directivity "phase plug" diffusor. These pieces are placed between the

diaphragm and the horn throat, avoiding cancellation of certain critical frequencies.

ACOUSTIC ENCLOSURES

Wood and construction

If the employed components represent 51% of the success of an acoustic system, the

remaining 49% belongs to the acoustic enclosure and its construction. The plywood panels

used on the EPC is very stiff and light. The boxes feature braces which minimize coloration

caused by surface vibration. Constructed with 15 mm plywood, the midrange and high-

frequency cabinets include a wooden ring inside the box which snugly fits around the tweeter

motor thus reinforcing its subjection and protecting the diffusor from possible impacts or

vibrations. Its trapezoidal shape has a 6° angle on each side. The low frequency cabinet is built

from 18 mm birch plywood. Both enclosures feature inset handles to make transporting and

handling easier.

Absorbers

Inside the box, stationary waves can originate and affect the sound purity. One way to

minimize this effect is to use absorbers. EPC cabinets use antiallergic, oncologically inoffensive

synthetic fibre glued onto the inner box walls.

Painting

A new resin-based chemical component provides a high durability treating, being scratch

and bump resistant.

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Hardware

The loudspeakers are protected with a foam-covered metal grille, preserving them from

dust and splashings. The midrange and high frequency cabinets feature a fitting which, once

the protecting plate is removed, allow the use of a flying suspension system such as ATM's

"MEGS PIVOTAL SERIES". Ask your distributor for further details. They are delivered with

disassembled metallic stands. (See 3.2)

Preinstalled fittings for mounting most wheel types found on the market. (See 3.3)

Connection panel with SPEAK ON connectors

VERSIONS AND ACCESSORIES

Apart from the basic version consisting of acoustic cabinets, amplifiers and the

processor unit, a complementary version is available for upgrading purposes: The EPC7000 C.

The only difference lies in the fact that this version does not include the EPC200 processor, as

bigger systems need just one of these units.

It is also possible to fit all system electronics into a flight case (ref EPC FL). 10m

connection cables are included apart from the internal wiring and connection panel.

Other accessories

EPP LINT This interconnection panel for EPCs lets you configure a EPC7000 as a slave

(EPC200 bypassed) or master device (EPC200 working).

EPP AINT 15m multicore cable for interconnecting two EPP LINT or successive units.

WH 200 Kit consisting of 4 pivoting wheels for the acoustic cabinets.

3. INSTALLATION

3.1. Placement and mounting

The acoustic characteristics of the room, hall... and the number of assistants must be

taken into account. General rules valid for any case: place the acoustic cabinets on solid and firm

surfaces. The bass reinforcement cabinets are more efficient when are placed directly on the floor

in an oblong position rather than vertical or elevated or hanged. We recommend to place the bass

cabinets vertical for a better sound quality.

Be sure that there is not any obstacle between the mid-treble cabinets and the audience;

the high frequencies are extremely directive and any obstacle represents an attenuation. For a big

audience, the higher you place the mid-treble cabinets, the better sound propagation you will get.

Although all the EPC cabinets protect the loudspeakers with a grille and a foam do not expose the

system to the sun for long periods and avoid the rain.

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3.2. Fixing and hanging the system

The EPC215D acoustic enclosures feature 2 lateral insets specially suited for installing

ATM's MEGS PIVOTAL SERIES rigging system. Four different KITS are available depending on

the installation requirements (see figure A)

To mount this parts, simply remove the little plates covering the insets and follow the

instructions that came with the MEGS PIVOTAL SERIES.

On the rear part of the EPC215D you will also find a fitting for mounting a piece which

lets you slide through a ribbon for tilting the enclosures once rigged.

ATM Group, Inc • 21000 South Wilmington Avenue • Carson, CA • 90810-1247 •

Tel 310.834.5914 • Fax 310.834.3042 • www.atm-fly-ware.com

Or contact your nearest ECLER Technical Service Department

3.3. Mounting the wheels

All the EPC cabinets have embeded nuts where the wheels can be

attached thus easing the transport for mobile systems. The WH 200 ECLER

kit is composed by 4 free-wheels.

3.4. Connecting the system

Connection to the acoustic cabinet. This connection must be done with, at least, 3mm

cable (we recommend 6mm). The amplifier output and the acoustic cabinet input connectors are 4

pin SPEAK ON (see diagram B). The mid-treble cabinet will be connected as follows:

Treble + > Pin 2+

Treble - > Pin 2-

Mid + > Pin 1+

Mid - > Pin 1-

The bass reinforcement cabinet only uses pin 1+ and pin 1-.

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3.5. Interconnecting two or more systems

With one single EPC200 base unit you may interconnect up to 20 EPC7000 C systems

(complementary unit without processor). You just have to use the Stack outputs found on any

SPM amplifier. These Stack outputs should be connected to identical amplifiers. IMPORTANT

:

The successively interconnected amplifiers must be adjusted with identical settings as the

amplifiers which are directly connected to the EPC200.

Another option is to use complete EPC7000 systems configured as master or slaves,

depending on the functional requirements. For that purpose we have designed the EPP LINT and

EPC AINT multicore, which let you interconnect several EPC units, configuring them as master

or slave. The master system will inhibit all the system associated processors. (See diagram

C/D)

A set of small switches placed at the left side of the EPPLINT circuit board help you

to use one system for different configurations when stacking systems. It is for instance more

convenient to use each power amplifier rack in mono mode when working with even numbered

systems (2, 4, 8…)(see diagram C).

On the other hand, when working with odd numbered systems (3, 5, 7, 9…), one

system would operate in stereo (MASTER system) and the rest in mono mode (see diagram D).

Following this advice will in both cases minimise cable runs, as each power amplifier

rack can be placed next to the speakers, which is the most recommendable situation.

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4. Diagrams

4. Diagramas

4. Schémas

A

Mechanical pieces placed interiorly in the cabinet

MEGS-PB

MEGS-PF2

MEG 1 KIT

Composed by: -4 MEGS PB

-4 MEGS PF2

-2 MEGS PBB

-6 M0 6

-Screws included

MEGS-PBB

Kit for two EPC215D mounted in one line

-Chains or wire rope slings not included

Cadenas o cable de acero no incluido

A

Piezas mecánicas montadas en el interior de la caja

Kit para dos EPC215D montadas en una fila

Compuesto por:

Tornillería incluida

MEGS-PB

MEGS-PF6

MEGS-PBB

-Chains or wire rope slings not included

Cadenas o cable de acero no incluido

Mechanical pieces placed interiorly in the cabinet

A

Piezas mecánicas montadas en el interior de la caja

A

MEG 2 KIT

Composed by: -4 MEGS PB

-4 MEGS PF6

-4 MEGS PBB

-7 MO 6

-Screws included

Kit for two EPC215D mounted in two lines

Kit para dos EPC215D montadas en dos filas

Compuesto por:

Tornillería incluida

MEGS-520-TB

MEG 3 KIT

Composed by: -1 MEGS-520-T

-Screws included

Compuesto por:

Tornillería incluida

MEGS-520-T

AMFS-3X4 30" BAR

-Chains or wire rope slings not included

Cadenas o cable de acero no incluido

MEG 3 KIT

Composed by: -1 MEGS-520-T

-1 AMFS-3X4 30" BAR

-3 MO 6

-Screws included

Compuesto por:

Tornillería incluida

A

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5. TECHNICAL CHARACTERISTICS

5. CARACTERÍSTICAS TÉCNICAS

5. CARACTERISTIQUES TECHNIQUES

Power 6136WRMS

Maximum SPL @ 1m 148dB

Frequency response (-3dB) 45Hz-21kHz

Radiation angles (H-V) (Treble) 60ºx40º

Power consumption 11650VA

Overall weight (app.) 396kg

(without flight-case and cables)

EPC215D

Dimensions (Height x Width x Depth) 1140x540x455mm

Weight 60kg

EPC218D

Dimensions (Height x Width x Depth) 1140x750x720mm

Weight 100kg

Remaining characteristics: see individual specifications.

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ECLER Laboratorio de electroacústica S.A.

Motors 166168, 08038 Barcelona, Spain

INTERNET http://www.ecler.es Email: [email protected]

50.0055.01.02

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