QSC LA108 User Manual

9
Introduction
L Class represents the next generation of advanced, intelligent, active loudspeakers for applications ranging from simple, portable,
plug-and-play setups, to demanding, networked, high-tech AV productions and fixed installations.
The LA108 and LA112 are active line array loudspeakers featuring a brilliant combination of leading-edge innovation, refined
engineering, and unparalleled ease of use in easy-to-deploy packages.
Key Features and Technologies
• Purpose-designed, lightweight neodymium transducers deliver high, undistorted SPL (134 dB / 136 dB peak).
• Energy efficient Class D amplifier modules (1300 W / 2400 W peak power) with Power Factor Correction and extremely low AC
consumption.
• Innovative QSC LEAF
™
(Length-Equalized Acoustic Flare) waveguide provides defined, uniform coverage and exceptional throw.
• Acoustic Linear Phase (ALP) design provides complementary coherence between QSC loudspeakers deployed in the same audio
system delivering a uniform listening experience across the entire venue.
• Intuitive, single operator QSC RapidDeploy
™
rigging technology with short, medium, and long-throw options guarantees fast
deployment without tools or additional hardware.
• Onboard QSC AWARE
™
(Automatic Wireless Array Recognition) system intelligence communicates essential setup information to the
user via any loudspeaker’s Rear User Interface (RUI) or QSC System Navigator
™
App.
• Ar-Q
™
(Array Equalization) processing automatically makes the appropriate equalization adjustments based on the total splay angle
of the array, total number of boxes in the array, and the location of each loudspeaker in the array.
• QSC SysNav
™
(System Navigator) App allows the user to easily design, configure, control, monitor and apply signal processing to
individual loudspeakers, full arrays, or groupings of both.
• Network solution includes digital audio-over-IP (Dante
®
) for interoperability with other audio equipment and seamless control and
monitoring integration into the Q-SYS Ecosystem via Q-SYS Inventory Extensions.
• Flown, ground-stacked over subwoofer(s), loudspeaker stand/pole mounted, or horizontal ground deployment options.
• Industry-best global 6-Year Extended Warranty with product registration.
What’s in the Box
(1) LA108/LA112 active line
array loudspeaker unit
(1) AC power cord, with
PowerCON
®
TRUE1
(3 m / 10 ft) connectors
(1) Quick Start Guide (1) Safety Sheet
TD-001655-00

QSC LA108 Specifications

General

Amplifier Power	N/A (passive)
Frequency Response	65 Hz – 20 kHz
Configuration	Passive
Enclosure Material	Birch plywood
Power Handling	1600 W (Peak)
Impedance	16 ohms

Summary

Explanation of Symbols

Important Safety Instructions

Rigging Safety Regulations

Lists relevant safety standards and regulations for rigging and suspension applications.

Shock Loading and Maximum Suspended Load

FCC Statements

Loudspeaker FCC Compliance

Details FCC compliance for LA108 and LA112, including limits for digital devices.

Warranty

Introduction

Key Features and Technologies

What's in the Box

LA108 Features

LA112 Features

Deployment Options

Ground Deployment

Covers various ground-based configurations for loudspeaker placement.

Flown Deployment

Details methods for suspending loudspeakers in the air.

QSC RapidDeploy Rigging System

Attachment and Angle Controls

Explains how to attach loudspeakers and adjust splay angles using the rigging system.

Understanding Splay Angles

Splay Angle Rules and Calculations

Covers progressive splay angle rules and methods for calculating total array angles.

Ground Deployment: Tripod Stands

Pole Mounting on Tripod

Instructions for mounting loudspeakers onto a tripod stand.

Stacking on Tripod Pole Mount

Splay Angle Adjustment on Tripod Mount

Details on adjusting splay angles when mounting on a tripod pole.

Ground Deployment: Over Subwoofers

LA108 Configurations Over Subwoofers

Guidance for pole-mounting LA108 loudspeakers over subwoofers.

LA112 Configurations Over Subwoofers

Stacking Loudspeakers Over Subwoofers

LA108/LA112 Stacking Procedures

Instructions for stacking LA108 and LA112 loudspeakers over subwoofers using accessories.

Front Fill (Stage-Lip) Deployment

Splay Angle Adjustment for Subwoofer Stack

Adjusting splay angles for loudspeakers stacked on subwoofers.

Ground Stacking

Preparing Array Frame for Ground Stack

Steps to prepare the array frame for creating a ground stack.

Attaching Loudspeaker to Ground Stack Frame

Stacking Loudspeakers for Ground Stack

Process for stacking multiple loudspeakers in a ground configuration.

Splay Angle Adjustment for Ground Stack

Horizontal Array Deployment

Stacked Horizontal Array

Splay Angle Adjustment for Stacked Horizontal Array

Adjusting splay angles for stacked horizontal loudspeaker arrays.

Flown Deployment

Array Frame Attachment Preparation

Steps to prepare the array frame for flown deployment.

Attaching and Detaching Loudspeakers

Instructions for connecting and disconnecting loudspeakers to the array frame.

Splay Angle Adjustment for Flown Deployment

Pick-Point Deployment

Pick-Point and Bridle Setup

Details on single pick-point, bridle, and tilt angle adjustments.

Rear Panel Connections

System Power and Sequencing

AC Mains Connections

Connecting and Daisy-Chaining Power

Instructions for connecting to AC mains and daisy-chaining power.

Daisy-Chaining Procedure

Recommended Configurations

LA108 Loudspeaker Configurations

Recommended configurations for LA108 loudspeakers with subwoofers.

Power Sequences

Analog Audio Connections

XLR Connections

Details on using XLR connectors for analog audio input and output.

Network Connections

Daisy-Chaining Network Cables

Methods for daisy-chaining loudspeakers using network cables.

Network Control and Dante Setup

Connecting to a Network

Steps for connecting the loudspeakers to a network.

Outdoor Installations

Rear Panel User Interface

Navigating the Rear User Interface

Guide to navigating the menus and controls on the loudspeaker's rear panel.

Home Screen Navigation

Home Screen Status Indicators

Explanation of status indicators and color codes on the Home Screen.

Network Icon Meanings

Array Equalization and Filter Status

Loudspeaker Settings

Security and Sensitivity

Covers security lock, sensitivity levels, LED modes, and network settings.

Utilities and Diagnostics

Factory Reset and Calibration

Details on factory reset, angle calibration, and additional functions.

DSP Features Overview

L Class Accessories

Transportation and Interconnect Jumpers

Information on transport totes and interconnect jumper kits.

Temporary Outdoor Use

Sub-stacking Loudspeakers

LA108/LA112 Sub-stacking Procedures

Procedures for stacking LA108 and LA112 loudspeakers over subwoofers.

Support Resources