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L-Acoustics 12XT User Manual

L-Acoustics 12XT
52 pages
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12XT Coaxial Enclosure
12XT Enceinte Coaxiale
VERSION 1.2
www.l-acoustics.com
EN
F
R
USER MANUAL
MANUEL D’UTILISATION

Table of Contents

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L-Acoustics 12XT Specifications

General IconGeneral
Usable bandwidth (-10 dB)55 Hz - 20 kHz
Nominal Impedance8 ohms
Power400 W RMS
Coverage90° x 60° (H x V)
Transducers1 x 12" LF, 1 x 1.5" HF
LF Driver12'' cone driver
Connectors2 x NL4
Weight (without rigging)26 kg (57.3 lbs)
Weight20 kg
Dimensions600 x 400 x 400 mm
RiggingIntegrated rigging points
Type2-way passive
Coverage angle90° x 60° (H x V)
Dimensions (H x W x D)600 x 400 x 400 mm

Summary

Safety Warnings and Precautions

Safety Symbol Explanations

Defines warning, caution, and important symbols for potential risks.

Key Safety Instructions

Provides essential safety guidelines for operation, sound levels, and environments.

EC Declaration of Conformity

Introduction to the 12XT Enclosure

Welcome and Product Overview

Thanks the user for purchasing and outlines manual's purpose and content.

Unpacking and Initial Inspection

Instructs on carefully opening the carton and checking for shipping damage.

L-ACOUSTICS XT Coaxial Range Overview

12XT Coaxial Enclosure Description

Installation and Mounting

Mounting and Rigging Options

Describes various mounting options like wall, ceiling, flying, and stacking.

Speaker Connection Guide

Explains how to connect the 12XT enclosures to the LA4 amplified controller.

Operating the 12XT Loudspeaker

System Configuration and Presets

Discusses system configuration options and factory presets for operation modes.

Passive 12XT Operation Modes

Details the operation of the PASSIVE 12XT in different modes (FULL RANGE, HIGH-PASS, HYBRID).

Passive 12XT: Full Range Mode

Explains the PASSIVE 12XT operation in standalone mode without low frequency extension.

Passive 12XT: High-Pass Mode

Describes PASSIVE 12XT operation with a 100 Hz high-pass filter for subwoofer coupling.

Passive 12XT: Hybrid Mode with Subwoofers

Details PASSIVE 12XT operation combined with SB118 subwoofers for extended bandwidth.

Active 12XT Operation Modes

Details the operation of the ACTIVE 12XT in different modes (FULL RANGE, HIGH-PASS).

Active 12XT: Full Range Mode

Explains the ACTIVE 12XT operation in standalone mode without low frequency extension.

Active 12XT: High-Pass Mode

Describes ACTIVE 12XT operation with a 100 Hz high-pass filter for subwoofer coupling.

Care, Maintenance, and Service

Maintenance Guidelines

Provides information on the product's components and the need for inspection.

Product Testing Procedures

Outlines the steps for testing acoustic behavior, mechanical assembly, and external aspect.

Acoustic Behavior Testing

Details how to test the acoustic performance using a sweep frequency generator.

Mechanical and Rigging Inspection

Explains how to inspect screws, sockets, and rigging elements for integrity.

External Aspect Cleaning

Provides instructions for cleaning and maintaining the external appearance of the enclosure.

Transducer and Switch Replacement

Guides on replacing transducers (LF, HF) and the active/passive switch.

LF Loudspeaker Service

Provides procedures for removing and replacing the 12" LF loudspeaker.

HF Diaphragm Service

Guides on removing and replacing the HF diaphragm.

Active/Passive Switch Replacement

Details the procedure for removing and replacing the active/passive switch.

Spare Parts and Tools

Lists available spare parts and recommended tools for service.

Technical Specifications

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