AUDAC CAP412 Istruzioni per l'installazione e il funzionamento

PROFESSIONAL AUDIO EQUIPMENT

CAP412 Four Channel 100V Power Amplifier

User Manual &

Installation Guide

P412

4 x 100V Power Amplifier

AUDAC

CAP412

AUDAC PROFESSIONAL AUDIO EQUIPMENT

User Manual & Installation Guide

AUDAC

http://www.audac.eu

[email protected]

INTRODUCTION..................................................................................................................................................................................................................... 3

ENVIRONMENT ...................................................................................................................................................................................................................... 4

SAFETY REQUIREMENTS ................................................................................................................................................................................................... 5

CAUTION –SERVICING...................................................................................................................................................................................................... 5

OVERVIEW FRONT AND REAR PANEL .......................................................................................................................................................................... 6

FRONT PANEL OVERVIEW................................................................................................................................................................................................ 6

REAR PANEL OVERVIEW .................................................................................................................................................................................................. 7

CONNECTING THE AMPLIFIER........................................................................................................................................................................................ 9

INPUT CONNECTIONS ........................................................................................................................................................................................................ 9

CONNECTION STANDARDS .............................................................................................................................................................................................. 9

OUTPUT CONNECTIONS .................................................................................................................................................................................................. 10

BLOCK DIAGRAM ............................................................................................................................................................................................................... 12

ADDITIONAL INFORMATION.......................................................................................................................................................................................... 13

TECHNICAL SPECIFICATIONS ....................................................................................................................................................................................... 13

PERSONAL NOTES............................................................................................................................................................................................................... 14

Index

Introduction

This section briefly describes the possibilities of the CAP412 four channel power amplifier.

he CAP412 four channel power amplifier was developed as an easy to use, flexible

solution for multifunctional use.

During the development of the CAP412, the AUDAC-engineers wanted to achieve four goals:

-Delivering a flexible audio solution to control multiple functions

-Offering a user-friendly device

-Guaranteeing an excellent sound quality

-Creating a modern and advanced design

The CAP412 is a professional four channel 100V power amplifier which is capable of

providing 120 Watt to each of the four separate output channels. This creates a great

flexibility and new possibilities for installed Multi-Zone audio distribution systems.

It is designed as a no-nonsense amplifier with only the necessary controls and connections,

which creates great simplicity in use and installation. Every output channel contains different

power taps to be used in 100 Volt, 70 Volt and even 4 Ohm low impedance applications, and

the input signal connections are performed using balanced XLR connectors, allowing link

through to other amplifiers.

Besides all the desired connection possibilities, the CAP412 also offers a gain control

potentiometer and a high-pass filter switch (400Hz) on the back of the unit. A built-in

multipurpose protection circuit protects against DC malfunction, short circuit, overheating,

overload, and limits the signal when necessary.

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 was 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.

Chapte

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 CAP412

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

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: 199





Overview front and rear panel

Front panel overview

CAP412

Description

1. Power switch:

By means of the power switch, the amplifier can be turned ON and OFF. When the amplifier is

switched on, the blue LED located next to the power button will illuminate.

2. Indicator LED’s:

These four LED’s indicate the operation of the amplifier. The green Signal LED illuminates

whenever a signal is present, while the -20dB LED illuminates when the input signal exceeds the -

20 dBu level. The Clip LED illuminates when the corresponding channel is working at maximum

level. To ensure the best signal-to-noise ratio, the Clip LED may only illuminate at peak levels.

When the Clip LED illuminates frequently, the amplifier will be overloaded, a distorted “Clipping”

sound will be available on the output. The Protection LED will illuminate when overheating

occurs, or any other fault is detected. When the protection LED is illuminated, no signal will be

available on the outputs. The protection LED’s will also illuminate for a few seconds when

powering up the amplifier, and when the amplifier is switched off they will slowly fade out.

Chapte

1. Power switch

2. Indicator LED’s

Rear panel overview

Description

3. AC Power inlet with fuse:

The mains power supply (100~240V AC / 50~60Hz) has to be applied to this AC power inlet.

The connection is made by an IEC power connector and is fitted with a fuse. When replacing the

fuse, make sure that the value of the replacement fuse matches the value of the original fuse.

(T6.3H/250V)

4. High pass filter switch:

By means of this switch, the integrated High Pass Filter (HPF) can be switched ON and OFF.

When the filter is switched ON, frequencies below 400Hz will be suppressed.

This can be useful for eliminating low-frequency hum and noise caused by external equipment and

protects speakers from damage caused by excessive low frequency transients.

5. Gain control potentiometer:

By means of these potentiometers, the level of each input signal can be adjusted. Make sure the

level for every channel is set correctly so no clipping occurs.

6. Loudspeaker connections:

The loudspeaker output connections are performed using Euro Terminal Blocks, and provide the

possibility for connecting low impedance (4 Ohm) loudspeakers as well as High impedance (100V

/ 70V) loudspeakers.

ower inlet with fuse

6. Louds

eaker connections

4. Hi

ass filter switch 5. Gain control

otentiometer

7. In

ut connections

7. Input connections:

The input connections of the amplifier are performed using balanced XLR connectors. Every

channel has an XLR input connector and a XLR link output connector. The input signal from the

signal source, pre-amplifier or mixer should be connected to the XLR input connections. And by

means of the XLR link output connectors, the signal can be linked through to multiple amplifiers.

Connecting the Amplifier

Note

When connecting the amplifier, make sure the power button is switched OFF.

Input connections

The input connections of the amplifier are performed using balanced XLR connectors. Every

channel has an XLR input connector and a XLR link output connector.

The input signal from the signal source, pre-amplifier or mixer should be connected to the XLR

input connections. And by means of the XLR link output connectors, the signal can be linked

through to multiple amplifiers.

Connection standards

The in- and output connections of AUDAC audio equipment are performed corresponding to

international wiring standards for professional audio equipment.

XLR:

1 = ground / shield

2 = +sig

3 = -sig

XLR female:

XLR male:

Chapte

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