L-Acoustics arcs wide Rigging Manual
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L-Acoustics arcs wide Rigging Manual

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ARCS
WIDE SYSTEM
®
ARCS
FOCUS SYSTEM
®
RIGGING MANUAL
VERSION 3.0
w w w . l - a c o u s t i c s . c o m

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  • Page 1 ARCS WIDE SYSTEM ® ARCS FOCUS SYSTEM ® RIGGING MANUAL VERSION 3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 2: Safety Instructions

    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 ®...

  • Page 3: Table Of Contents

    Please check the L-ACOUSTICS ® web site on a regular basis to download the latest documents: www.l-acoustics.com. CONTENTS RIGGING SYSTEM COMPONENTS Loudspeaker enclosures ............................4 Rigging elements ..............................

  • Page 4: Rigging System Components

    An L-ACOUSTICS ® loudspeaker system is the set of components available to form any loudspeaker system based on one of the full-range loudspeaker enclosure afforded by L-ACOUSTICS ®. It includes enclosures, rigging accessories, loudspeaker cables, amplified controllers, and software applications.
  • Page 5 ARCS ® WIDE ARCS ® FOCUS SB18m WIFOBUMP WIFOLIFT WIFOLIFTBAR WIFOSOCK WIFOTILT CLAMP250 WIFORIG SB18MRIG SOUNDVISION SB18PLA SB18COV Components involved in the rigging process of ARCS ® WIDE SYSTEM / ARCS ® FOCUS SYSTEM ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 6: Mechanical Safety

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 2 MECHANICAL SAFETY Maximum configurations The ARCS ® WIDE/FOCUS rigging system complies with 2006/42/EC: Machinery Directive. It has been designed following the guidelines of BGV-C1. 2006/42/EC: Machinery Directive specifies a safety factor of 4:1 against the rupture for flown deployments. The limits for flown deployments specified in the tables below correspond to a safety factor of 5:1 or higher.

  • Page 7: Assessing Mechanical Safety

    Assessing mechanical safety In order to assess the actual safety of any array configuration before implementation, refer to the following warnings: Rated working load limit (WLL) is not enough The rated WLL is an indication of the element resistance to tensile stress. For complex mechanical 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.

  • Page 8: Technical Description

    VERSION 3.0 3 TECHNICAL DESCRIPTION Flying The ARCS WIDE/FOCUS system can using WIFOLIFT or WIFOLIFTBAR depending on two factors: number of load-bearing lines, number of enclosures. Follow the indications in this table to know which accessories to use:...

  • Page 9: Wifoliftbar

    3.1.2 WIFOLIFTBAR Only lift symmetrical arrays. Each side of the array must mirror the other. 2 WIFOLIFT and 1 WIFOLIFTBAR ARCS ® WIDE only When used with 6 enclosures, the WIFOLIFTBAR is only compatible with ARCS ® WIDE. ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 10: System Setup

     Stack and attach as many SB18m enclosures as necessary (logo down). Refer to PROCEDURE A.  To adjust the ARCS WIDE/FOCUS site angle, use a WIFOTILT. Refer to PROCEDURE B.  Otherwise, place the ARCS WIDE/FOCUS enclosures with rails aligned on top of the subwoofer(s).

  • Page 11: Flying

    Flying No bridled suspension on two WIFOLIFT bars. Always use 1 load-bearing line per pick-up point. Pullback implementation By using rigging points at the rear of the installed coupling bars, an ARCS ® WIDE/FOCUS horizontal or vertical array can be implemented in pullback configuration. Refer to APPENDIX A PULLBACK IMPLEMENTATION.

  • Page 12: Horizontal 3, 5 Or 6 Enclosure

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 WIFOLIFTBAR positioning Refer to WIFOLIFT on page 8-9. Hybrid arrays If you are implementing a hybrid configuration carefully follow the verification procedure outlined in PROCEDURE C Attaching a WIFOLIFTBAR Horizontal 3, 5 or 6 enclosure ...

  • Page 13: Vertical

    No bridled suspension on the WIFOBUMP frame Always use 1 load-bearing line per pick-up point. Pullback implementation By using rigging points at the rear of the installed coupling bars, an ARCS ® WIDE/FOCUS horizontal or vertical array can be implemented in pullback configuration. Refer to APPENDIX A PULLBACK IMPLEMENTATION.

  • Page 14: Pole-Mounting

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 Pole-mounting On feet or on top of SB18m ®  Install a WIFOSOCK on an ARCS WIDE/FOCUS enclosure. Refer to PROCEDURE E.  Insert the pole into the WIFOSOCK socket. ...

  • Page 15: Subset Procedures

    5 SUBSET PROCEDURES PROCEDURE A Locking a rigging bar (WIFORIG, SB18MRIG or WIFOLIFT) Coupling bars and SB18m Only use the longer SB18MRIG bars stored on the SB18m subwoofers to attach SB18m to another SB18m or to a WIFOBUMP. The shorter WIFORIG bars do not ensure the mechanical safety of these connections. 1.

  • Page 16: Procedure B Using Wifotilt To Adjust Arcs Wide/Focus Site Angle

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 PROCEDURE B Using WIFOTILT to adjust ARCS WIDE/FOCUS site angle Remove the locking tabs and sling from WIFOTILT. Adjust WIFOTILT angle. WIDE FOCUS WIDE FOCUS WIDE FOCUS...
  • Page 17 Slide the WIFOTILT tabs through the holes at the front of both the SB18m with rails aligned. enclosures rails. Lift the back of ARCS WIDE / FOCUS and place Attach the sling to the back holes of each enclosure rail on one the WIFOTILT in the SB18m pole socket.

  • Page 18: Procedure C Attaching A Wifoliftbar

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 PROCEDURE C Attaching a WIFOLIFTBAR 5.1.1 Description The WIFOLIFTBAR is a rigging accessory used to fly 3 or 5 ARCS ® WIDE/FOCUS or 6 ARCS ® WIDE. It is used with two WIFOLIFT that are positioned on the array depending on the number of enclosures, WIFOLIFT p 8-9.
  • Page 19 ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 20: Procedure

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 5.1.3 Procedure If you are raising a hybrid array (ARCS ® WIDE and FOCUS), follow these steps: 1. Select the WIFOLIFT and WIFOLIFTBAR holes to define a starting point. The values given in the Tilt angle reference chart can be used as a guideline.
  • Page 21  PROCEDURE D: Attaching a WIFOLIFTBAR Securing a swivel shackle on WIFOLIFTBAR. Securing the WIFOLIFTBAR to the two WIFOLIFT. Verifying the WIFOLIFT central bar is parallel to the top of the array. Verifying the alignment of the swivel shackle and the rigging arm. ARCSWIFO_RM_EN_3.0 w w w .

  • Page 22: Procedure D Attaching A Shackle Or Clamp250

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 PROCEDURE D Attaching a shackle or CLAMP250 1. Refer to SOUNDVISION modeling or to the table in APPENDIX B TILT ANGLE REFERENCE CHART to identify the hole that corresponds to the targeted tilt angle. WIFOBUMB HOLES WIFOLIFT HOLES WIFOLIFTBAR HOLES...
  • Page 23 ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 24: Procedure E Mounting The Wifosock

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 PROCEDURE E Mounting the WIFOSOCK Remove the pin from the angle hole. Place the WIFOSOCK onto the socket receptacle of the enclosure. Secure the WIFOSOCK by applying a quarter-turn rotation to the three screws, with a coin or a Insert the pin into the appropriate angle hole.

  • Page 25: Appendix Apullback Implementation

    APPENDIX A PULLBACK IMPLEMENTATION A. Vertical Array Maximum configurations. 2 or 4 ARCS ® WIDE/FOCUS enclosures array for 1 WIFOBUMP frame. 6 or 8 ARCS ® WIDE/FOCUS enclosures array for 2 WIFOBUMP frames. ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 26: Horizontal Array

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 B. Horizontal array Maximum configurations. ® 2 or 4 ARCS WIDE/FOCUS enclosures array for 1 WIFOLIFT. 3 or 5 ARCS ® WIDE/FOCUS enclosures array for 2 WIFOLIFT and 1 WIFOLIFTBAR. ARCSWIFO_RM_EN_3.0 w w w .

  • Page 27: Appendix Btilt Angle Reference Charts

    APPENDIX B TILT ANGLE REFERENCE CHARTS ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...
  • Page 28 ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...
  • Page 29 ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...
  • Page 30 ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 ARCSWIFO_RM_EN_3.0 w w w . l - a c o u s t i c s . c o m...

  • Page 31: Appendix Crecommended Flight-Case

    APPENDIX C RECOMMENDED FLIGHT-CASE It is recommended to use a dedicated flight-case capable to fit 2 ARCS ® WIDE/FOCUS enclosures in vertical position. Both the tray and cap should feature a foam insert cut according to the pattern illustrated below. This one allows for ®...

  • Page 32: Appendix Dspecifications

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 APPENDIX D SPECIFICATIONS ® ARCS FOCUS 2-way passive enclosure, amplified by LA4 or LA8 Description 55 Hz - 20 kHz ([ARCS_WIFO] preset) Usable bandwidth (-10 dB) 137 dB ([ARCS_WIFO] preset) Maximum SPL 15°...

  • Page 33: Arcs ® Wide

    ARCS ® WIDE Description 2-way passive enclosure, amplified by LA4 or LA8 Usable bandwidth (-10 dB) 55 Hz - 20 kHz ([ARCS_WIFO] preset) Maximum SPL 135 dB ([ARCS_WIFO] preset) Coverage angle (-6 dB) 30°  90° LF 1  3" diaphragm compression driver, DOSC ®...

  • Page 34: Sb18M

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 SB18m Description Subwoofer enclosure, amplified by LA4 or LA8 Low frequency limit (-10 dB) 32 Hz ([SB18_100] preset) Maximum SPL1 136 dB ([SB18] preset) RMS power handling 700 W Transducers 1 ...

  • Page 35: Clamp250

    CLAMP250 Description Rigging element Dimensions Weight 1,8 kg / 4 lb Material Steel with anti-corrosion coating WIFOBUMP Description Rigging element for the ARCS ® WIDE SYSTEM and the ARCS ® FOCUS SYSTEM Dimensions Weight 10,5 kg / 23.1 lb Material Steel with anti-corrosion coating WIFOLIFT Description...

  • Page 36: Wifoliftbar

    ARCS WIDE SYSTEM / ARCS FOCUS SYSTEM ® ® rigging manual VERSION 3.0 WIFOLIFTBAR Description Rigging element for the ARCS ® WIDE and ARCS ® FOCUS enclosure Dimensions Weight 1.6 kg Material High-grade steel with anti-corrosion coating WIFOSOCK Description Rigging element for the ARCS ®...
  • Page 37 Document reference: ARCSWIFO_RM_EN_3.0 Distribution date: August 4, 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 consent of the publisher.

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