L-Acoustics LA24a User Manual

Name: L-Acoustics LA24a
Brand: L-Acoustics
Rating: 4 (1 reviews)

23 pages

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Version 1.0

January 2003

LA24a

OWNERS MANUAL

Table of Contents3
List of Figures4
List of Tables4
Approvals5
Warnings5
Explanation of Graphical Symbols5
Warning5
Caution5
Important Safety Instructions5
User Responsibility6
Speaker Damage6
Speaker Output Hazard6
Radio Interference6
Introduction8
Unpacking8
Front Panel8
Figure 1: La24A Front Panel8
Rear Panel9
Figure 2: La24A Rear Panel9
Rear Panel Features10
Impedance Matching (MLS Switch)10
Figure 3: La24A Rear Panel MLS Switches10
Table 1: Output Power Ratings and MLS Switch Settings for the La24A10
MLS Technology Background11
Clip Limiter11
Table 2: MLS Switch Setting Applications11
Installation12
Mounting12
Cooling12
Operating Voltage13
Denmark13
Switzerland13
Grounding13
Power Consumption14
Table 3: La24A Current Draw @ 4 Ohms14
Table 4: La24A Maximum Output Power Versus Mains Input Power14
Heat Power Calculation15
Gain and Sensitivity15
Table 5: La24A Output Power and Input Sensitivity Versus MLS Switch Setting (32 Db Gain)15
Connections16
Input Connections16
Balanced Inputs16
Figure 4: XLR Input Connector Wiring16
Figure 5: Balanced XLR Wiring16
Figure 6: ¼" TRS Plug16
Figure 7: La24A Rear Panel Detail16
Unbalanced Inputs17
Connecting Speakers17
Figure 8: Unbalanced Line Connection17
Figure 9: Balanced Line with Unbalanced Equipment17
Figure 10: Loudspeaker Connection Details17
Operation18
Operation Modes18
Stereo Mode18
Figure 11: Reverse Polarity Operation for Channel B18
Table 6: Maximum Recommended Length for Damping Factor > 2018
Tandem Mode19
Bridged Mono Mode19
Bridged Mono Mode Features19
Operating Precautions19
Figure 12: Bridged Mono Cabling19
Powering up - Soft Start20
Input Attenuators20
Indicators20
Figure 13: La24A Front Panel Detail20
Protection Features21
Clip Limiter21
Thermal Protection21
VHF Protection21
Short Circuit Protection21
AC Mains Voltage Protection22
DC Protection22
Maintenance22
Troubleshooting22
Warranty23
Technical Assistance and Service23

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L-Acoustics LA24a Specifications

General

Brand	L-Acoustics
Model	LA24a
Category	Amplifier
Language	English

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L-Acoustics LA24a User Manual

Table of Contents

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