L-Acoustics 112XT - Table of Contents

L-ACOUSTICS XT Manual V1.1 2/11/2003 3
TABLE OF CONTENTS
FOREWORD..............................................................................................................................................1
MANUAL ORGANIZATION....................................................................................................................1
TABLE OF CONTENTS............................................................................................................................3
LIST OF FIGURES.....................................................................................................................................4
LIST OF TABLES ......................................................................................................................................4
0. INTRODUCTION .................................................................................................................................5
1. THE XT SYSTEM..................................................................................................................................6
1.1 XT SYSTEM COMPONENTS......................................................................................................................... 6
1.2 XT OVERVIEW............................................................................................................................................. 9
1.3 112XT SPECIFICATIONS ............................................................................................................................ 10
1.4 115XT SPECIFICATIONS ............................................................................................................................ 11
2. POWERING XT ..................................................................................................................................12
2.1 POWERING 112XT.................................................................................................................................... 12
2.2 POWERING 115XT.................................................................................................................................... 14
2.3 CONNECTORS AND CABLES ..................................................................................................................... 17
3. XT CONTROL AND PROCESSING..................................................................................................17
3.1 GENERAL DESCRIPTION OF XT PRESETS.................................................................................................. 18
3.2 XT PRESET POLICY .................................................................................................................................... 18
3.3 GUIDELINES REGARDING SYSTEM PROTECTION..................................................................................... 19
3.4 XT PRESET LIBRARIES............................................................................................................................... 20
4. SOUND DESIGN ................................................................................................................................26
4.1 APPLICATIONS ........................................................................................................................................... 26
4.2 AIMING XT ENCLOSURES ......................................................................................................................... 26
4.3 ARRAYING XT ENCLOSURES ..................................................................................................................... 27
4.4 PREDICTING XT COVERAGE ..................................................................................................................... 30
4.5 DISTRIBUTED SOUND REINFORCEMENT................................................................................................. 30
4.5.1 OVERHEAD DISTRIBUTED SYSTEMS ............................................................................................ 30
4.5.2 DELAY SYSTEMS .............................................................................................................................. 30
4.5.3 COMPLEMENTARY FILL ................................................................................................................. 31
4.6 FRONT-OF-HOUSE (FOH) APPLICATIONS ................................................................................................ 32
4.7 STAGE MONITORING................................................................................................................................ 32
4.8 USING XT WITH SUBWOOFERS............................................................................................................... 34
4.8.1 COMBINING XT WITH SUBWOOFERS ........................................................................................ 35
4.8.2 GROUND STACKED SYSTEMS....................................................................................................... 35
4.8.3 SEPARATE FLOWN XT ARRAY WITH GROUND STACKED SUBWOOFERS ............................. 35
5. INSTALLATION PROCEDURES .......................................................................................................37
5.1 ETR112XT, ETR115XT U-BRACKET ATTACHMENT .................................................................................. 37
5.2 CPL112XT, CPL115XT COUPLING ADAPTER BAR ATTACHMENT ............................................................. 38
5.3 XTLIFTBAR ATTACHMENT ........................................................................................................................ 40
5.4 SAFETY RULES ........................................................................................................................................... 40
6. XT SYSTEM OPERATION .................................................................................................................41
6.1 RECOMMENDED MAINTENANCE PROCEDURES ..................................................................................... 41
6.2 SPARE PARTS.............................................................................................................................................. 42
7. SPECIFICATIONS ..............................................................................................................................43
7.1 112XT ELEMENT SPECIFICATIONS ........................................................................................................... 43
7.2 115XT ELEMENT SPECIFICATIONS ........................................................................................................... 47