LA
LALA
LA8
88
8
AMPLIFIED CONTROLLER
AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER
AMPLIFIED CONTROLLER
USER MANUAL
USER MANUALUSER MANUAL
USER MANUAL
VERSION 4.0
LA8_UM_EN_4-0
w w w . l - a c o u s t i c s . c o m
6
66
6
2
22
2 CONTENTS
CONTENTSCONTENTS
CONTENTS
1
SAFETY WARNINGS 1
1.1
Symbol description .................................................................................................................................................. 1
1.1.1
Symbols employed in this manual ............................................................................................................ 1
1.1.2
Symbols indicated on the product ........................................................................................................... 1
1.2
Important safety instructions ................................................................................................................................... 2
1.3
EC declaration of conformity .................................................................................................................................. 5
1.4
Additional approvals ................................................................................................................................................ 5
2
CONTENTS 6
3
INTRODUCTION 8
3.1
Welcome to L-ACOUSTICS
®
.................................................................................................................................. 8
3.2
Unpacking ................................................................................................................................................................ 8
3.3
Cross-references ..................................................................................................................................................... 9
3.4
Web links ................................................................................................................................................................. 9
4
COMPLETE SYSTEM APPROACH 10
4.1
LA8 Presentation ................................................................................................................................................... 10
4.2
Loudspeaker system configurations ....................................................................................................................... 10
4.3
System components related to the LA8 ................................................................................................................ 10
5
LA8 AMPLIFIED CONTROLLER 12
5.1
Main features ......................................................................................................................................................... 12
5.1.1
Front and rear panel .............................................................................................................................. 12
5.1.2
Simplified block diagram ........................................................................................................................ 13
5.2
Signal processing and amplification ........................................................................................................................ 13
5.2.1
Analog input ........................................................................................................................................... 13
5.2.2
AES/EBU digital input ............................................................................................................................. 14
5.2.3
DSP architecture .................................................................................................................................... 14
5.2.4
Amplifier section .................................................................................................................................... 15
5.2.5
Speaker output ....................................................................................................................................... 15
5.3
Monitoring and control .......................................................................................................................................... 16
5.3.1
User interface ........................................................................................................................................ 16
5.3.2
L-NET Remote Control Network ......................................................................................................... 16
5.3.3
LA NETWORK MANAGER Software .................................................................................................... 16
6
INSTALLATION 17
6.1
Mounting ................................................................................................................................................................ 17
6.2
Cooling .................................................................................................................................................................. 18
6.3
Connecting to AC mains ........................................................................................................................................ 18
6.3.1
Operating voltage................................................................................................................................... 18
6.3.2
Three-phase circuit ................................................................................................................................ 18
6.3.3
Electrical generator ................................................................................................................................ 18
6.3.4
Circuit breaker ....................................................................................................................................... 18
6.3.5
Power plug and wiring ........................................................................................................................... 19
6.4
Audio and network cabling .................................................................................................................................... 20
6.4.1
Connection panels ................................................................................................................................. 20
6.4.2
Analog audio cabling ............................................................................................................................... 20
6.4.3
AES/EBU digital audio cabling ................................................................................................................ 21
6.4.4
Loudspeaker cabling............................................................................................................................... 23
6.4.5
L-NET network cabling.......................................................................................................................... 24
6.5
Power consumption .............................................................................................................................................. 24
6.6
Heat power calculation .......................................................................................................................................... 24
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