L-ACOUSTICS ARCS Manual V2.0 2/13/2003 2
TABLE OF CONTENTS
FOREWORD..............................................................................................................................................1
MANUAL ORGANIZATION....................................................................................................................1
TABLE OF CONTENTS............................................................................................................................2
LIST OF FIGURES.....................................................................................................................................3
LIST OF TABLES ......................................................................................................................................3
0. INTRODUCTION .................................................................................................................................4
0.1 WAVEFRONT SCULPTURE TECHNOLOGY
®
................................................................................................ 4
A) THE SOUND REINFORCEMENT PROBLEM ....................................................................................... 4
B) WAVEFRONT SCULPTURE PRINCIPLES.............................................................................................. 4
C) THE ARCS
®
SOUND REINFORCEMENT SYSTEM............................................................................... 5
1. THE ARCS SYSTEM .............................................................................................................................7
1.1 ARCS SYSTEM COMPONENTS ..................................................................................................................... 7
1.2 ARCS SPECIFICATIONS............................................................................................................................... 10
1.3 ARCS ACCESSORIES ................................................................................................................................... 11
1.4 ARCS RIGGING COMPONENTS ................................................................................................................. 11
2. POWERING ARCS..............................................................................................................................15
2.1 CONNECTORS AND CABLES ..................................................................................................................... 18
3. ARCS CONTROL AND PROCESSING .............................................................................................18
3.1 GENERAL DESCRIPTION OF ARCS PRESETS .............................................................................................. 19
3.2 ARCS PRESET POLICY................................................................................................................................. 19
3.3 GUIDELINES REGARDING SYSTEM PROTECTION..................................................................................... 20
3.4 ARCS PRESET LIBRARIES ............................................................................................................................ 21
4. SOUND DESIGN ................................................................................................................................27
4.1 APPLICATIONS ........................................................................................................................................... 27
SINGLE ROW ARRAYS .............................................................................................................................. 27
DOUBLE ROW ARRAYS ........................................................................................................................... 28
4.2 ARRAY AIMING .......................................................................................................................................... 28
4.3 MONITOR SIDE-FILL.................................................................................................................................. 30
4.4 COMPLEMENTARY FILL............................................................................................................................. 31
FLOWN/STACKED CENTRE FILL............................................................................................................ 32
STACKED STEREO INFILL ....................................................................................................................... 32
OFFSTAGE FILL......................................................................................................................................... 32
4.5 DELAY SYSTEMS ........................................................................................................................................ 33
4.6 USING ARCS WITH SUBWOOFERS ........................................................................................................... 34
A) COMBINING ARCS WITH SUBWOOFERS......................................................................................... 34
B) GROUND STACKED SYSTEMS ........................................................................................................... 35
C) SEPARATE FLOWN ARCS ARRAY WITH GROUND STACKED SUBWOOFERS............................. 36
5. INSTALLATION PROCEDURES .......................................................................................................37
5.1 INSTALLATION OF A SINGLE ROW FLOWN SYSTEM................................................................................ 37
5.2 INSTALLATION OF A DOUBLE ROW FLOWN SYSTEM .............................................................................. 41
5.3 ARCBUMP INSTALLATION ........................................................................................................................ 43
5.4 SAFETY RULES .......................................................................................................................................... 46
6 ARCS SYSTEM OPERATION .............................................................................................................48
6.1 RECOMMENDED MAINTENANCE PROCEDURES ..................................................................................... 48
6.2 SPARE PARTS.............................................................................................................................................. 49
7 SPECIFICATIONS ...............................................................................................................................50
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