Audac COM12, COM24 operation manual & Installation Guide [ml]

Public Address Amp

COM12/COM24

AUDAC

PROFESSIONAL AUDIO EQUIPMENT

Public Address Amplifier COM12/COM24

User Manual &

Installation Guide

A U D A C P RO FE SS I O N A L A U D I O E Q U I PM E N T

User Manual & Installation Guide

 AUDAC

http://www.audac.be

[e-mail]

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Index

ENGLISH

INTRODUCTION ...........................................................................................................................................................................................................................6

ENVIRONMENT.............................................................................................................................................................................................................................7

SAFETY REQUIREMENTS......................................................................................................................................................................................................... 8

PIN CONNECTIONS ON CONNECTORS................................................................................................................................................................................9

OVERVIEW FRONT AND REAR PANEL OF THE COM12/COM24..............................................................................................................................10

OVERVIEW INPUT CONTROLS.............................................................................................................................................................................................11

OVERVIEW OUTPUT CONTROLS........................................................................................................................................................................................ 11

OVERVIEW INPUT SECTION LINE INPUTS......................................................................................................................................................................12

OVERVIEW INPUT SECTION TELE-PAGING AND REMOTE MIC............................................................................................................................ 12

OVERVIEW CASCADING PORTS..........................................................................................................................................................................................13

OVERVIEW OUTPUT SECTION.............................................................................................................................................................................................13

GETTING STARTED...................................................................................................................................................................................................................14

PRIORITY SETTINGS................................................................................................................................................................................................................15

PHANTOM POWER....................................................................................................................................................................................................................15

TELEPHONE PAGING...............................................................................................................................................................................................................15

CONNECTING EXTERNAL EQUIPMENT...........................................................................................................................................................................16

CASCADING COM12/COM24 PUBLIC ADDRESS AMPLIFIERS .................................................................................................................................. 16

CONNECTING THE SPEAKERS.............................................................................................................................................................................................16

WIRE UP THE SYSTEM.............................................................................................................................................................................................................17

ADDITIONAL INFORMATION COM12/COM24.................................................................................................................................................................18

PERSONAL NOTES.....................................................................................................................................................................................................................19

CAUTION – SERVICING............................................................................................................................................................................................................8

FRONT.........................................................................................................................................................................................................................................10

REAR ...........................................................................................................................................................................................................................................10

INPUT 1 - 6 (FRONT).................................................................................................................................................................................................................11

OUTPUT 1-5 ( FRONT ).............................................................................................................................................................................................................11

INPUT 1-6 (REAR) .....................................................................................................................................................................................................................12

CASCADING PORTS (REAR)..................................................................................................................................................................................................13

T

ECHNICAL SPECIFICATIONS

.......................................................................................................................................................................................................18

2222

NEDERLANDS

INLEIDING.................................................................................................................................................................................................................................... 20

OMGEVING...................................................................................................................................................................................................................................21

VEILIGHEIDSVOORSCHRIFTEN..........................................................................................................................................................................................22

WAARSCHUWING – SERVICE ..............................................................................................................................................................................................22

AANSLUITGEGEVENS VAN DE CONNECTOREN ........................................................................................................................................................... 23

OVERZICHT VOOR- EN ACHTERZIJDE............................................................................................................................................................................24

VOORZIJDE................................................................................................................................................................................................................................24

ACHTERZIJDE...........................................................................................................................................................................................................................24

OVERZICHT INGANGSCONTROLE.....................................................................................................................................................................................25

INGANGEN 1 - 6 (VOORZIJDE)..............................................................................................................................................................................................25

OVERZICHT UITGANGSCONTROLE..................................................................................................................................................................................25

UITGANG 1-5 ( VOORZIJDE ).................................................................................................................................................................................................25

OVERZICHT INGANGSSECTIE LIJNINGANGEN............................................................................................................................................................26

INGANGEN 1-6 (ACHTERZIJDE)...........................................................................................................................................................................................26

OVERZICHT INGANGSSECTIE ‹ TELE-PAGING › EN ‹ REMOTE MIC ›...................................................................................................................26

OVERZICHT CASCADE IN- EN UITGANGEN....................................................................................................................................................................27

CASCADE IN- EN UITGANGEN (ACHTERZIJDE) .............................................................................................................................................................27

OVERZICHT UITGANGSSECTIE...........................................................................................................................................................................................27

ALGEMENE UITLEG.................................................................................................................................................................................................................28

PRIORITEIT INSTELLINGEN.................................................................................................................................................................................................29

FANTOOMVOEDING.................................................................................................................................................................................................................29

TELEFOONCENTRALE ............................................................................................................................................................................................................29

EXTRA TOESTELLEN AANSLUITEN...................................................................................................................................................................................30

COM12/COM24 MENGVERSTERKERS IN CASCADE SCHAKELEN..........................................................................................................................30

LUIDSPREKERS AANSLUITEN..............................................................................................................................................................................................30

BEDRADING .................................................................................................................................................................................................................................31

BIJKOMENDE INFORMATIE COM12/COM24...................................................................................................................................................................32

T

ECHNISCHE SPECIFICATIES

PERSOONLIJKE AANTEKENINGEN....................................................................................................................................................................................33

........................................................................................................................................................................................................32

3333

FRANCAIS

INTRODUCTION .........................................................................................................................................................................................................................34

ENVIRONNEMENT.....................................................................................................................................................................................................................35

PRESCRIPTIONS DE SÉCURITÉ............................................................................................................................................................................................36

A

VERTISSEMENT – ENTRETIEN

DONNÉES DE BRANCHEMENT DU CONNECTEURS .....................................................................................................................................................37

VUE GÉNÉRALE DE LA FAÇADE ET DE L’ARRIÈRE....................................................................................................................................................38

F

AÇADE

.........................................................................................................................................................................................................................................38

A

RRIÈRE

........................................................................................................................................................................................................................................38

VUE GÉNÉRALE CONTRÔLE D’ENTRÉE..........................................................................................................................................................................39

E

NTRÉES 1 - 6 (FAÇADE

VUE GÉNÉRALE CONTRÔLE DE SORTIE.........................................................................................................................................................................39

S

ORTIE

1-5 (

FAÇADE

).................................................................................................................................................................................................................39

VUE GÉNÉRALE SECTION D’ENTRÉE ‹ LINE INPUTS › ...............................................................................................................................................40

E

NTRÉES

1-6 (

ARRIÈRE

VUE GÉNÉRALE SECTION D’ENTRÉE ‹ TELE-PAGING › ET ‹ REMOTE MIC › ....................................................................................................40

VUE GÉNÉRALE ‹ CASCADE › ENTRÉES ET SORTIES..................................................................................................................................................41

‹ C

ASCADE › ENTRÉES ET SORTIES (ARRIÈRE

VUE GÉNÉRALE SECTION DE SORTIE ..............................................................................................................................................................................41

INFORMATIONS GÉNÉRALES............................................................................................................................................................................................... 42

RÉGLAGES PRIORITAIRES....................................................................................................................................................................................................43

ALIMENTATION FANTÔME................................................................................................................................................................................................... 43

CENTRAL TÉLÉPHONIQUE....................................................................................................................................................................................................43

BRANCHER DES APPAREILS SUPPLÉMENTAIRES.......................................................................................................................................................44

MONTER EN ‹ CASCADE › LES COM12/COM24 AMPLIFICATEURS-MÉLANGEUR............................................................................................44

BRANCHER LES HAUT-PARLEURS.....................................................................................................................................................................................44

CÂBLAGE ...................................................................................................................................................................................................................................... 45

INFORMATIONS SUPPLÉMENTAIRES COM12/COM24 ................................................................................................................................................46

S

PÉCIFICATIONS TECHNIQUES

NOTES PERSONNELLES..........................................................................................................................................................................................................47

...................................................................................................................................................................................................36

) ..............................................................................................................................................................................................................39

)...............................................................................................................................................................................................................40

)..............................................................................................................................................................................41

.....................................................................................................................................................................................................46

4444

DEUTSCH

EINFÜHRUNG ..............................................................................................................................................................................................................................48

AUFSTELLUNGSHINWEISE....................................................................................................................................................................................................49

SICHERHEITSVORSCHRIFTEN ............................................................................................................................................................................................50

W

ARNUNG – BEDIENUNG

ANSCHLIEΒDATEN DER STECKER.....................................................................................................................................................................................51

ÜBERSICHT VORDER – UND RÜCKSEITE ........................................................................................................................................................................52

V

ORDERSEITE

R

ÜCKSEITE

ÜBERSICHT EINGANGSKONTROLLE................................................................................................................................................................................ 53

E

INGÄNGE 1 - 6 (VORDERSEITE

ÜBERSICHT AUSGANGSKONTROLLE...............................................................................................................................................................................53

A

USGANG

ÜBERSICHT EINGANGSSEKTION LINEQUELLEN ........................................................................................................................................................54

E

INGÄNGE

ÜBERSICHT EINGANGSSEKTION ‹ TELE-PAGING › UND ‹ REMOTE MIC ›..........................................................................................................54

ÜBERSICHT ‹ CASCADE › EIN – UND AUSGÄNGE ..........................................................................................................................................................55

‹ C

ASCADE › EIN – UND AUSGÄNGE (RÜCKSEITE

ÜBERSICHT AUSGANGSSEKTION.......................................................................................................................................................................................55

ALLGEMEINE INFORMATIONEN........................................................................................................................................................................................56

PRIORITÄTSEINSTELLUNGEN.............................................................................................................................................................................................57

PHANTOMSPEISUNG................................................................................................................................................................................................................57

FERNMELDEAMT ......................................................................................................................................................................................................................57

ZUSÄTZLICHE GERÄTE ANSCLIEΒEN..............................................................................................................................................................................58

COM12/COM24 MISCHVERSTÄRKER IN ‹ CASCADE › SCHALTEN..........................................................................................................................58

LAUTSPRECHER ANSCHLIEΒEN.........................................................................................................................................................................................58

VERDRAHTUNG..........................................................................................................................................................................................................................59

ZUSÄTZLICHE INFORMATIONEN COM12/COM24........................................................................................................................................................60

T

ECHNISCHE SPEZIFIKATIONEN

PERSÖNLICHE NOTIZEN........................................................................................................................................................................................................61

...............................................................................................................................................................................................................................52

...................................................................................................................................................................................................................................52

1-5 (V

1-6 (R

............................................................................................................................................................................................................50

) .................................................................................................................................................................................................53

ORDERSEITE

ÜCKSEITE

)....................................................................................................................................................................................................53

) .......................................................................................................................................................................................................54

) .....................................................................................................................................................................55

...................................................................................................................................................................................................60

5555

Introduction

T

This section briefly describes the possibilities of the COM12/COM24 public address
amplifier.

he COM12/COM24 public address amplifier was developed as an easy to use, flexible
solution for multifunctional use.

During the development of the COM12/COM24, the AUDAC-engineers wanted to achieve four
goals:

- Delivering a flexible audio solution to control multiple functions

- Easy to use

- Excellent sound quality

- Modern and advanced design

The COM12/COM24 has 2 stereo unbalanced line level inputs, 2 mono balanced line level inputs,
2 mono balanced line level inputs with priority settings and phantom power, 5 high impedance
100V mono output zones, 1 low impedance 4ohm mono output zone, a link input and output, an
amp input and pre-amp output, a remote microphone input and the possibility to connect a
telephone pager unit.

The COM12/COM24 can be used in commercial applications such as restaurants, hotels, shops,
warehouses, professional offices, public buildings, …

A simple example: when installed in a shop, you could connect: a tuner to play your favorite radio­station, a microphone to make announcements, a telephone pager, … and off course the doorbell
of the shop.

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Chapter

1

Environment

Do not place this unit in an enclosed environment such as a bookshelf or closet. Ensure
that there is adequate ventilation to cool the unit. Do not block the ventilation openings.

Do not place the unit in environments which contain high levels of dust, heat, moisture or
vibration.

Do not use the unit near water or other liquids. Make sure no water or other liquids can be
spilled, dripped or splashed on the unit.

This unit is developed for indoor use only. Do not use it outdoors.

Do not place objects on top of the unit.

Place the unit on a stable base.

7777

Safety Requirements







Always handle the unit with care.

Only use a grounded socket outlet and a power cord with grounding plug to plug in the
unit.

This unit is not a toy. It should not be operated by children.

Do not stick objects through the openings of the COM12/COM24.

Do not open the unit (risk for electrical shock).

The COM12/COM24 contains several ‹ jumpers › which can be set. These settings may
only be done by qualified people.

CAUTION – SERVICING

This unit contains no user serviceable parts. Refer all servicing to qualified
service personnel. Do not perform any servicing unless you are qualified to do
so.

Note

This product conforms to the following European Standards: EN 50081-1: 1992, EN
50082-1: 1992, EN 60065: 1994

8888

Pin connections on Connectors

Cinch (RCA)

:

tip = signal (left or right)

ring = ground

XLR:

1 = ground / shield

2 = +sig

3 = -sig

XLR female:

XLR male:

6.3mm (1/4”) balanced jack plug:

tip = +sig

ring = -sig

sleeve = ground / shield

6.3mm (1/4”) unbalanced jack plug:

tip = signal

sleeve = ground / shield

9999

Overview front and rear panel of the COM12/COM24

Chapter

2

for the COM24)

FRONT

REAR

(same

10

10

1010

Overview Input Controls

2 band tone control

Chime button

Zone output routing buttons

Input volume controls

Output VU

-

bar

INPUT 1 - 6 (FRONT)

(same for the COM24)

Overview Output Controls

OUTPUT 1-5 ( FRONT )

(same for the COM24)

Master volume control

Output clipping LED

Power button and blue ON-led

11

11

1111

Overview Input section line inputs

Input Level Gain Controls

Priority switch

XLR balanced line inputs

6.3mm jack balanced line inputs

RCA unbalanced line inputs

Chime volume control

Music on hold volume control

Remote microphone input

Telephone paging input

XLR / 6.3mm jack balanced line inputs

INPUT 1-6 (REAR)

(same for the COM24)

Microphone phantom
power switch

Overview input section tele-paging and remote mic

the COM24)

(same for

Music on hold output Remote microphone volume control

12

12

1212

Overview Cascading Ports

Fuse holder

Pre-amplifier output (unbalanced)

Link input (unbalanced)

CASCADING PORTS (REAR)

Link output (unbalanced)

(same for the COM24)

Amplifier input (unbalanced)

Overview output section

(same for the COM24)

Power cord

4ohm zone output 100V zone outputs

13

13

1313

Chap

ter

3

Getting Started

The COM12/COM24 public address amplifier can be switched on by pressing the power button
on the front panel. The blue ‹ ON › led will light up if the device is powered-up.

On the front panel you can route the input signals to a specific zone output simply by pressing the
routing button of the zone output. If you want to route the input signals to all zone outputs, press
the ‹ All › button. By pressing the routing buttons a second time, the routing will be undone. A pre­announced chime can be played by pressing the ‹ Chime › button on the front panel.

The volume of the input signals can be controlled by turning the volume knobs of the input
signals on the front panel of the COM12/COM24. The master volume knob and the 2 band tone
control let you adjust the volume, bass and treble of the output signal. A VU-bar indicates the
signal level of the output signal.

On the rear panel, the gain of the input channels and the remote microphone can be adjusted. The
volume of the ‹ chime › and the ‹ music on hold › function can also be adjusted on the rear panel.

The output section on the rear panel of the COM12/COM24 has 5 high impedance zone outputs
for 100V lines and 1 low impedance zone output to connect a 4ohm speaker (or two 8 ohm
speakers in parallel).

14

14

1414

Priority settings

The COM12/COM24 public address amplifier has a 3 layer priority mute function. The first layer
has the highest priority, the third layer has the lowest priority.

Layer 1 Telephone paging

Layer 2 CH1, CH2, Chime, Remote Mic.

Layer 3 CH3, CH4, CH5, CH6

When a source of a higher layer becomes active, all other input signals on the layers below are
muted.

The priority for CH1 and CH2 can be switched ‹ on › or ‹ off › on the rear panel.

Phantom power

When connecting a condenser microphone to CH1 or CH2, the phantom power for the
microphone on the specific channel can be switched on at the rear panel. The phantom power
supplies +15V

to the microphone.

DC

Telephone paging

Connect the tele-paging connector with the tele-paging output of your telephone paging unit.
Connect the ‹ music on hold › connector to the ‹ music on hold › input of the telephone paging
unit.

The music for the ‹ music on hold › function is provided only by the music source connected to
CH6.

Set the ‹ music on hold › volume to a proper level.

15

15

1515

Connecting external equipment

If it is necessary to condition the output signal or to limit the output signal, an equalizer or limiter
can be connected between the mixer section and the amplifier section of the COM12/COM24.

This can be done by connecting the ‹ pre-amp output › to the equalizer or limiter input and
connecting the equalizer or limiter output to the ‹ amp input ›. When you insert a 6.3mm plug into
the ‹ amp input ›, the internal amplifier section will be disconnected from the internal mixer
section.

Cascading COM12/COM24 public address amplifiers

When there’s need for more in- and outputs, the COM12/COM24 amplifiers can be cascaded by
connecting the ‹ link output › from the master to the ‹ link input › of the slave.

Connecting the speakers

Speakers with a matching transformer can be connected to the 5 high impedance outputs on the
rear panel.

A 4ohm speaker (or two 8ohm speakers in parallel) can be connected to the 4ohm low impedance
output at the rear

ATTENTION:

NEVER use the high impedance outputs and the low impedance outputs

at the same time.

Make sure the total combined load of the speakers does not exceed 120W (COM12)/240W
(COM24). This is the maximum power the COM12/COM24 amplifier can give.

16

16

1616

Wire up the System

The COM12/COM24 amplifier is very easy to use. Following cable specs must be followed to
guarantee a correct operation:

1. Speaker cable for amplified zone output 4ohm: minimum 2x1.5 mm2 (distance >15m:
2x2.5mm2)

2. Music sources and other line level inputs: must be connected with audio cable of good quality

17

17

1717

Additional Information COM12/COM24

Chapter

4

Technical specifications

COM12 COM24

Sensitivity
Balanced Microphone Channels -50dB±3dB
Balanced Line Channels -22dB±3dB
Balanced Remote Microphone station -50dB±3dB
Balanced Telephone Paging -21dB±3dB
Unbalanced Link In -17dB±3dB
Unbalanced Amp In -0dB±3dB

Frequency Response (1Watt from speaker output
tap. 100Hz-10kHz)
THD+N by 1 kHz Less than 0.5%
Signal to Noise ratio 90 dB@1kHz

Phantom Power +15V DC

Zone outputs 1-5 100V

Output level & impedance 100V – 83 ohm

Power Supply 235V AC, 50-60Hz
Max. power consumption 170W 260W

Weight 9.76 kg 8,5 kg
Dimensions (W x H x D) 420 mm x 88mm x 320mm
Unit height 2HE

+1.5dB / -3dB

100V – 42 ohm

70V – 42 ohm

25V – 5,2 ohm

4 ohm – 22V

70V – 21 ohm

25V – 2,6 ohm

4 ohm – 31V

18

18

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Personal notes

19

19

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