Wöhler AMP2-DA - User Manual

Title and Contents .......................................................................
Introduction .........................................................................................
Section 1: Features, Specs, and Installation ....................
Description and Features ......................................................................
Applications and Specifications ............................................................
Installation ...........................................................................................
Section 2: Operation .................................................................
Front Panel Features ............................................................................
Rear Panel Features ..............................................................................
Audio Amplifier and Speaker Configuration .........................................
Balance Control Characteristics .............................................................
Section 3: Technical Information .........................................
General Technical Observations ............................................................
AES to Analog Converter PCB (919117) ...............................................
AES Mute-On-Error Jumper Location (919117 PCB) .............................
PPM Meter Specifications and Level Threshold Settings ........................
VU Meter Specifications and Level Threshold Adjustment......................
AMP2-DA/AVU and AMP2-DA/APP Interconnect Block Diagram .............
AMP2-DA/AVU and
AMP2-DA/APP
2U Digital Audio Speaker Monitor
With Two Selectable AES Inputs on BNC,
Two Analog Inputs on XLR, Two Selected
Analog Stereo Outputs on XLR, Two Mechanical
VU (AVU) or PPM (APP) Level Meters,
and Phase Indication
Document P/N 821584 Rev-A
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CONTENTS
User Manual
ECO-2551 (08/13/04)

Summary

Important Safety Instructions

Introduction

Section 1: Features, Specs, and Installation

Description and Features

Details the functionalities and design aspects of the AMP2-DA/AVU and AMP2-DA/APP monitor units.

Applications and Specifications

Outlines the suitable uses and lists the general, digital, and physical specifications of the units.

Installation Guide

Covers mounting, heat dissipation, vibration control, mechanical bracing, and connection steps.

Section 2: Operation

Front Panel Features

Explains the purpose and function of each control and indicator on the front panel of the monitor units.

Rear Panel Features

Details the connectors, switches, and ports located on the rear panel of the monitor units.

Audio Amplifier and Speaker Configuration

Describes the internal audio amplifier and speaker setup, including the woofer channel configuration.

Balance Control Characteristics

Explains how the balance control affects the left and right channels and the woofer channel.

Section 3: Technical Information

General Technical Observations

Discusses mechanical and audio circuitry aspects, including potential issues and maintenance considerations.

AES to Analog Converter Module PCB (919117)

Details the functionality and components of the AES/EBU digital to analog converter PCB (919117).

AES Mute-On-Error Jumper Location (919117)

Identifies the location of the H12 jumper on the 919117 PCB for enabling audio muting on error detection.

Level Meter Specifications and Settings

Covers PPM and VU meter specifications, including threshold settings and adjustment procedures.

Interconnect Block Diagram

Presents a block diagram illustrating the signal flow and interconnections within the AMP2-DA/AVU and AMP2-DA/APP units.

Wöhler AMP2-DA Specifications

General

THD+N	< 0.1 %
Signal to Noise Ratio	> 90 dB
Type	Active Monitor Speaker
Channels	2
Outputs	XLR
Headphone Output	Yes
Impedance	10 kΩ