Montarbo AR4 Owner's Manual

AR4

SWITCHING POWER

PROFESSIONAL AMPLIFIER

Important Safety Instructions

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AR4

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INDEX

1. INTRODUCTION

2. FEATURES

3. CONTROL ELEMENT

4. APPLICATIONS

5. WIRING CONNECTIONS

6. BLOCK DIAGRAM

7. TECHNICAL SPECIFICATIONS

4

4

5

7

10

12

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AR4

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The AR4 switching power professional Amplifier is designed for professional use on stage.

The high-quality components and the carefully designed circuits ensure excellent audio

performance and an extremely linear frequency response. In fact, the switching technology

offers, together with an increased efficiency and a better control of heat dissipation than

conventional power supply systems, a drastic reduction of dimensions and weight, for

easier transportation and installation.

This Amplifier guarantees total reliability and a trouble-free use even in the most demanding

conditions. We believe the AR4 will provide a perfect performance, what you get is

unprecedented performance at an incredibly attractive price.

● High current switching power allowing high power output with low noise and low

distortion

● Substantial protection circuitry like thermal, short circuit, power on/off muting and

Therefore protection

● Built-in limiter

● Balanced XLR-TRS combo input jack

● Speakon output connectors

● Built in high-performance DSP

● Up data with USB and adjust measure with a PC soft

● Easy to operate by OLED and Encoder

Introduction

Features

AR4

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Power Switch

It switches ON/OFF the unit main power.

OLED Display

OLED is used to operate with the encoder.

Encoder

The encoder is used to control the parameters of amplifier.

Air Intake Vents

AR4 employ a variable speed internal cooling fan to intake the air through front grill to

keep it running cool even under extreme operating conditions. Please keep these vents

clear and free from obstruction at all times to insure proper cooling.

Air flow in AR4 amplifiers: Cool air is drawn into the left of the amplifier by the cooling

fan. Warm air exits the right of the amplifier.

USB

Using for updata new program and adjust measures of the amplifier with a PC soft.

Control Element

AR4

FRONT PANEL

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5