L-Acoustics LA4X Technical Bulletin
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- Owner's manual (83 pages) ,
- User manual (60 pages) ,
- Product information (36 pages)
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technical bulletin
version 1.0
© 2015 L-Acoustics
transmitted in any form or by any means without the express written consent of the publisher.
SAFETY INSTRUCTIONS
1.
Read this document.
2.
Read all SAFETY INSTRUCTIONS carefully as well as DANGER and OBLIGATION warnings.
3.
Never incorporate equipment or accessories not approved by L-Acoustics
4.
Beware of sound levels.
Do not stay within close proximity of loudspeakers in operation and consider wearing earplugs.
Loudspeaker systems are capable of producing very high sound pressure levels (SPL) which can instantaneously
lead to permanent hearing damage to performers, production crew and audience members. Hearing damage
can also occur with prolonged exposure to sound: 8 h at 90 dB(A), 30 min at 110 dB(A), less than 4 min at
130 dB(A).
5.
Strictly follow the sequence of the successive steps in all procedures.
6.
Solicit qualified personnel for any maintenance operation.
7.
Do not expose the product to extreme conditions.
Do not expose the product to rain or sea spray.
Do not expose the product to moisture (mist, steam, humidity, condensation...) or excessive heat (direct sun,
radiator...) for a long period of time.
8.
Do not store the product on an unstable cart, stand, tripod, bracket, or table.
SYMBOLS
The following symbols are used in this document:
DANGER
This symbol indicates a potential risk of harm to an individual or damage to the product.
It can also notify the user about instructions that must be strictly followed to ensure safe installation or
operation of the product.
OBLIGATION
This symbol notifies the user about instructions that must be strictly followed to ensure proper installation
or operation of the product.
INFORMATION
This symbol notifies the user about complementary information or optional instructions.
Document reference: ENCLOSURE-CHECK_TB_EN_1.0
Distribution date: June 8, 2015
®
. All rights reserved. No part of this publication may be reproduced or
l - a c o u s t i c s . c o m
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Summary of Contents for L-Acoustics LA4X
- Page 1 Read all SAFETY INSTRUCTIONS carefully as well as DANGER and OBLIGATION warnings. ® Never incorporate equipment or accessories not approved by L-Acoustics Beware of sound levels. Do not stay within close proximity of loudspeakers in operation and consider wearing earplugs.
- Page 2 The results can be used for preliminary diagnosis but cannot replace a comprehensive quality control. The ENCLOSURE CHECK function is only available on calibrated LA4X amplified controllers. Refer to the LOAD SENSOR CALIBRATION TOOL technical bulletin for more information on calibration.
- Page 3 Amplified controllers LA4X must run at least firmware version 1.2.0.29. Amplified controller load sensors must be calibrated. Refer to the LOAD SENSOR CALIBRATION TOOL technical bulletin for more information. Amplified controller must warm up for at least 10 minutes after power up.
- Page 4 SHORT for short circuit (found in NOK results) a percentage of variation from the expected range (found in NOK and UNDEF results) Once the causes for short circuits and unexpected open circuits are identified and fixed, repeat the check. ENCLOSURE-CHECK_TB_EN_1.0 l-acoustics.com 4 / 5...
- Page 5 If the requirements are met, the used preset is from the loudspeaker’s family, and cables and connections are in working order, the 5XT should be further investigated for issues in the HF transducer, then ENCLOSURE CHECK should be repeated. ENCLOSURE-CHECK_TB_EN_1.0 l-acoustics.com 5 / 5...
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