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SoundCraft Spirit Live 4 User Manual

SoundCraft Spirit Live 4
34 pages
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SoundCraft Spirit Live 4 Specifications

General IconGeneral
Aux Sends6
Main OutputsXLR
Faders100mm
Mic Inputs16
Line Inputs4
EQ Bands4-band
Buses4
Phantom Power+48V
Returns4 stereo
Number of Channels24

Summary

Introduction to Spirit Live 4

Basic Principles of PA Mixing

Mixer Controls and Functions

Fader and Input Handling

Explains faders for level control and how inputs handle mic/line signals.

EQ, Aux Sends, and Pan Controls

Details the equalizer, auxiliary sends for routing, and pan for stereo positioning.

Master Section and PFL Monitoring

Covers the master section for overall control and PFL for signal monitoring.

Signal Path Features

Insert Points and Pre/Post Designation

Explains insert points for external processing and the meaning of pre/post signal routing.

Headroom and Clipping Explained

Details headroom as signal reserve and the effects of clipping distortion.

Connection and Grounding Practices

Unbalanced Connection Guidelines

Provides wiring guidelines to minimize noise when using unbalanced connections.

Grounding and Shielding Best Practices

Explains the importance of proper grounding and shielding for optimal performance.

Fault Finding Guide

Block Diagram Understanding

Encourages learning the block diagram for system structure and signal flow.

Component Functionality

Emphasizes understanding each component's role to identify faults.

Basic Troubleshooting Process

Outlines a logical process for tracking down problems by elimination.

Getting to Know Your Console

Input Channel Overview

Details the microphone input, direct output, line input, insert points, line select, and gain control.

Stereo Section Features

Stereo Input Configuration

Explains the stereo input section comprising pairs of inputs for Left/Right signals.

Input Sensitivity Switching

Describes the -10 switch for matching different signal levels from Hi-Fi or semi-pro sources.

Stereo EQ Features

Details the 2-band shelving EQ section for stereo inputs.

Group Section Functionality

Group Return Input

Describes the mono return input for each group, used for sub-mixes or effects.

Group Insert Points

Explains insert points for external processing on group outputs.

Group Pan Control

Explains how the pan control positions signals routed to the mix L/R busses.

Group PFL Monitoring

Describes the PFL function for monitoring group signals.

Group Fader Operation

Details the long-throw faders for level control of each group.

Master Section Features

Group Output Details

Describes the group outputs driven by ground compensated amplifiers.

DC Power Connection

Details the DC power socket and required power supplies for different frame sizes.

Mono Output Functionality

Explains the mono output as a sum of Mix L/R for centre speaker feeds.

Mix L/R Output Details

Describes the Mix L&R outputs using standard male XLR-3 connectors.

Bargraph Metering System

Explains the 12-segment bargraph meters for visual monitoring of output levels.

Using Your Console

Initial Setup Procedure

Guides users through the initial setup process for the mixer.

Microphone Placement Best Practices

Provides advice on optimal microphone placement for sound reinforcement.

Applications and Examples

Public Address Stereo Setup

Illustrates a basic setup for public address with stereo output.

PA Stereo with Centre Feed

Shows a configuration using Group 1 for an additional centre speaker.

PA Mono Output Configuration

Demonstrates feeding loudspeakers in mono only, with submixing from another mixer.

Stereo Recording Setup

Illustrates a setup for 2-track or basic multitrack recording with stereo output.

Multitrack Recording Setup

Details connecting the mixer to multitrack tape machines for recording and mixdown.

Care and Maintenance

General Precautions for Mixer Care

Provides guidelines on avoiding damage from heat, cold, moisture, and spills.

Glossary of Terms

Selectable Options

Disabling +48V Phantom Power

Explains how to disable phantom power by removing a link on the input PCB.

Aux 2 Post Fade Reconfiguration

Details how to reconfigure Aux 2 from PRE FADE to POST FADE by repositioning a link.

Technical Specifications

Noise and EIN

Details noise levels for Mix, Aux, and Group outputs, and Equivalent Input Noise.

Crosstalk Performance

Lists crosstalk isolation specifications for various channel and routing functions.

Distortion and Impedances

Provides THD distortion figures and input/output impedance values.

Input/Output Levels and Metering

Details maximum input/output levels and bargraph meter accuracy.

System Block Diagram

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