L-Acoustics SB28 Rigging Manual Download Page 2

SB28 subwoofer 

RIGGING MANUAL 

VERSION 1.0 

 

SB28_RM_EN_1.0

 

w w w . l - a c o u s t i c s . c o m

 

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SAFETY INSTRUCTIONS 

1.

 

Read this manual 

2.

 

Follow all SAFETY INSTRUCTIONS as well as DANGER and OBLIGATION warnings 

3.

 

Never incorporate equipment or accessories not approved by L-ACOUSTICS

®

 

4.

 

Read all the related PRODUCT INFORMATION documents before exploiting the system 

The product information document is included in the shipping carton of the related system component. 

5.

 

Work with qualified personnel for rigging the system 

Installation should only be carried out by qualified personnel that are familiar with the rigging techniques and safety 
recommendations outlined in this manual.  

6.

 

Ensure personnel health and safety 

During  installation  and  set-up  personnel  must  wear  protective  headgear  and  footwear  at  all  times.  Under  no 
circumstances personnel is allowed to climb on a loudspeaker assembly. 

7.

 

Respect the Working Load Limit (WLL) of third party equipment 

L-ACOUSTICS

®

  is  not  responsible  for  any  rigging  equipment  and  accessories  provided  by  third  party 

manufacturers. Verify that the Working Load Limit (WLL) of the suspension points, chain hoists and all additional 
hardware rigging accessories is respected. 

8.

 

Respect the maximum configurations and the recommended safety level 

For  safety  issue,  respect  the  maximum  configurations  outlined  in  this  manual.  To  check  the  conformity  of  any 

configuration  in  regards  with  the  safety  level  recommended  by  L-ACOUSTICS

®

,  model  the  system  in 

SOUNDVISION and refer to the warnings in 

Mechanical Data

 section. 

9.

 

Be cautious when flying a loudspeaker array 

Always verify  that  no  one  is  standing  underneath  the  loudspeaker array  when  it  is being raised.  As the  array  is 

being  raised,  check  each  individual  element  to  make  sure  that  it  is  securely  fastened  to  the  adjacent  element. 

Never leave the array unattended during the installation process. As a general rule, L-ACOUSTICS

®

 recommends 

the use of safety slings at all times. 

10.

 

Be cautious when ground-stacking a loudspeaker array 

Do not stack the loudspeaker array on unstable ground or surface. If the array is stacked on a structure, platform, 
or stage, always check that the latter can support the total weight of the array. As a general rule, L-ACOUSTICS

®

 

recommends the use of safety straps at all times. 

11.

 

Take into account the wind effects on dynamic load 

When a loudspeaker assembly is deployed in an open air environment, wind can produce dynamic stress to the 
rigging components and suspension points. If the wind force exceeds 6 bft (Beaufort scale), lower down and/or 

secure the loudspeaker array.

 

 

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. 

 

 

 

Summary of Contents for SB28

Page 1: ...SB28 subwoofer RIGGING MANUAL VERSION 1 0...

Page 2: ...model the system in SOUNDVISION and refer to the warnings in Mechanical Data section 9 Be cautious when flying a loudspeaker array Always verify that no one is standing underneath the loudspeaker arr...

Page 3: ...he content of its documents without prior notice Please check the L ACOUSTICS web site on a regular basis to download the latest document and software updates www l acoustics com CONTENTS 1 RIGGING SY...

Page 4: ...ofer L ACOUSTICS it extends the low frequency response of a loudspeaker system down to 25 Hz The rigging components of the SB28 system are the following 1 1 Loudspeaker enclosure SB28 Subwoofer enclos...

Page 5: ...SB28_RM_EN_1 0 w w w l a c o u s t i c s c o m 5 16 SB28 SB28CHAIN BUMPSUB 2 SOUNDVISION Main components involved in the SB28 rigging process...

Page 6: ...nical systems such as loudspeaker arrays WLLs cannot be used per se to determine the maximum number of enclosures within an array or to assess the safety of a specific array configuration Mechanical m...

Page 7: ...of SB28CHAIN for each group of four SB28 The BUMPSUB 2 provides two pickup points to adapt to the position of the lifting points in your configuration In addition to these pickup points safety points...

Page 8: ...SB28 subwoofer RIGGING MANUAL VERSION 1 0 SB28_RM_EN_1 0 w w w l a c o u s t i c s c o m 8 16...

Page 9: ...B28_RM_EN_1 0 w w w l a c o u s t i c s c o m 9 16 4 SYSTEM SET UP 4 1 Ground stacking Use safety straps at all times when SB28 enclosures are ground stacked Stack up to eight SB28 Refer to PROCEDURE...

Page 10: ...rray Prepare the BUMPSUB 2 SB28CHAIN assembly Refer to PROCEDURE B Lift the assembly Stack two enclosures under the assembly Refer to PROCEDURE A Attach SB28 enclosures under the assembly Refer to PRO...

Page 11: ...16 SUBSET PROCEDURES Stacking SB28 enclosures PROCEDURE A 1 Tip the enclosure 2 Remove the dolly 3 Tip the next enclosure and place it on top of the previous enclosure Align the runners with the track...

Page 12: ...ofer RIGGING MANUAL VERSION 1 0 SB28_RM_EN_1 0 w w w l a c o u s t i c s c o m 1 2 16 Attaching SB28CHAIN to another element PROCEDURE B Attach the SB28CHAIN top link to the BUMPSUB 2 to the SB28CHAIN...

Page 13: ...s c o m 1 3 16 Attaching four SB28 enclosures under another element PROCEDURE C 1 Lower the BUMPSUB 2 or SB28 array 2 Attach the SB28CHAIN end link to the bottom SB28 enclosure 3 Attach the SB28CHAIN...

Page 14: ...ON 1 0 SB28_RM_EN_1 0 w w w l a c o u s t i c s c o m 1 4 16 4 Lift the array and position a two SB28 stack under it 5 Lower the array so it rests on the stack Under BUMPSUB 2 Under SB28 Under BUMPSUB...

Page 15: ...w w w l a c o u s t i c s c o m 1 5 16 7 Lower the flown elements to attach the end link to the bottom enclosure 8 Attach the bottom end link to the bottom enclosure and the safety fittings to the mid...

Page 16: ...8_RM_EN_1 0 Distribution date April 28 2014 2014 L ACOUSTICS All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means without the express written co...

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