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ALLEN & HEATH PA Series - User Manual

ALLEN & HEATH PA Series
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USER GUIDE
Publication AP4956
PA Series

Table of Contents

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ALLEN & HEATH PA Series Specifications

General IconGeneral
TypeAnalog Mixer
Microphone PreampsYes
Phantom PowerYes
Power SupplyInternal
EQ Bands per Channel3
Subgroups4
Dimensions (W x D x H)Varies by model
WeightVaries by model

Summary

Limited One Year Warranty

Conditions Of Warranty

Details the requirements and conditions for claiming warranty service on the product.

Important Safety Instructions

Mains Plug Wiring Instructions

Guidance on correctly wiring the mains plug for safe operation and to prevent electrical hazards.

Introduction

Overview

The PA Series Range

Key Features

Highlights the main functionalities and capabilities of the PA Series consoles.

Accessories

Details optional accessories like rack ears, software, and lamps for the consoles.

Panel Layout

Quick Start Guide

Installing the Console

Mains Power and Earthing

Cable and Connector Information

The MONO Channel

Balanced vs. Unbalanced Connections

Explains the differences and advantages of balanced and unbalanced audio connections.

Working with Different Sources

Guidance on selecting and connecting various audio sources to the mono channel inputs.

Mono Channel Equaliser

Using the Equaliser

Tips for effectively adjusting EQ settings for optimal sound quality and feedback prevention.

Aux Sends

Setting Up a Foldback Monitor Mix

Steps for creating effective foldback monitor mixes for performers on stage.

Mono Channel Controls

Using the Faders

Instructions on how to use channel faders for adjusting signal levels and mixing.

The dB Scale Explained

Explanation of the decibel (dB) scale and its meaning in audio gain measurement.

The STEREO Channel

Dual Stereo Inputs

Describes the two independent stereo inputs, ST1(3) and ST2(4), for the channel.

Using the Stereo Channels

Guidance on connecting and using stereo sources with the console's stereo channels.

Stereo Channel Functions

Stereo Channel Aux Sends

Explains how stereo channel aux sends function for foldback and effects mixes.

BAL Control

Adjusts the balance between the left and right stereo signals for the channel.

The EFFECTS Channel

Signal Path Overview

Diagrams illustrating signal flow for internal, external, and combined effects processing.

Wet and Dry Signals

Defines 'wet' (effect) and 'dry' (original) signals and how they are combined in the mix.

FX Channel Controls

Using PFL;AFL for Effects

How to use PFL to check sound quality and gain for the FX channel.

FX Channel Fader

Adjusts the overall level of the effects in the LR mix and foldback sends.

Digital Effects Presets

Disabling Internal Effects

How to disable the internal effects processor to use external units instead.

Footswitch Operation

Information on using a footswitch for FX channel mute and bypass functions.

MIDI and Effects Editing

PA FX Editor Software

Details the software for editing internal effects parameters and customizing presets on a PC.

Master Section Controls

Master Faders (FB1, FB2, LR)

Describes the main faders for controlling house and foldback mix levels.

Gain Structure Best Practices

Explains how to achieve optimal signal levels between stages for best audio performance.

Master Section Details

Background Music (BGM) Function

How to play an independent music source through the house speakers during breaks.

Headphone Monitoring Level

Controls the volume for monitoring selected signal sources via headphones.

The Amplifiers

Constant Power System Explained

Explanation of the unique constant power system for consistent output into 4 or 8 ohm speakers.

Amplifier Signal Meters

Description of the LED indicators for signal presence, limiting, and speaker status on the amplifiers.

Amplifier Configuration and EQ

Source Select for Amplifiers

How to select input sources for the built-in amplifiers for different system setups.

Using Output Equalizers

Guidance on using parametric EQ to shape the amplifier's output for room and speaker response.

Master Connectors

TRS Line Outputs

Details the 1/4" jack line level outputs, their impedance, and level characteristics.

Using Line Level Signals

How to use line level outputs to connect to amplifiers, processors, and recorders.

Output and Monitoring Connectors

Working with Powered Speakers

Instructions for connecting powered speakers to the console outputs for use.

Choosing Headphones for Monitoring

Recommendations for selecting appropriate headphones for optimal monitoring clarity and performance.

Digital and External Connections

SPDIF Explained

Explanation of the SPDIF digital audio interface standard and its connection requirements.

Patching Speaker Processors

How to integrate external speaker processors into the signal path for speaker equalization.

Speaker Connections and Impedance

Checking Speaker Polarity

Procedure for checking speaker wiring polarity to avoid phase cancellation issues.

Speaker Impedance Matching

Information on speaker impedance and safe connection to the amplifiers to prevent damage.

Specifications

System Block Diagram

Connector Types

Fitting the PA12-CP Rack Ears

Cue Sheet

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