L-Acoustics A15i Series Owner's Manual
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L-Acoustics A15i Series Owner's Manual

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Summary of Contents for L-Acoustics A15i Series

  • Page 1 A15i owner's manual (EN)
  • Page 2 Document reference: A15i owner's manual (EN) version 1.0 Distribution date: September 1, 2020 © 2020 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.

  • Page 3: Table Of Contents

    Contents Safety................................5 Instructions..............................5 Introduction................................ 7 A15i family.............................. 7 How to use this manual..........................8 System components.............................9 Loudspeaker cables..........................10 Rigging elements.............................11 Rigging plates..........................11 Electro-acoustical description..........................13 Adjustable ns............................13 Directivity............................... 16 Symmetrical congurations........................19 Preset description............................ 20 Connectors............................. 21 Rigging system description..........................22 A15i system rigging..........................22 Enclosures..............................
  • Page 4 A15i Wide/Focus line source element...................... 47 With low-frequency element......................47 Rigging procedures............................49 General principles...........................49 Tools..............................52 Flying..............................53 Flying a vertical array with A15i-BUMP..................53 Flying a vertical array with A15i-RIGBAR..................65 Adding a pullback with A15i-RIGBAR..................... 67 Flying a radial array with A15i-LIFT....................69 Wall-mounting or ceiling-mounting......................

  • Page 5: Safety

    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.
  • Page 6 This system is intended for use by trained personnel for professional applications. As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to change the specications of its products and the content of its documents without prior notice.

  • Page 7: Introduction

    A15i deployment requires a single preset that is optimized to provide amazing plug-and-play performance for both A15i models regardless of Panex conguration. Performance can be further enhanced with L-Acoustics software optimization tools. A15i provides the low frequency contour of a large concert system. The dedicated KS21i subwoofer can be groundstacked or own with A15i products to reinforce contour and extend bandwidth to 29 Hz.

  • Page 8: How To Use This Manual

    • Connection to LA amplied controllers (p.97) As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to change the specications of its products and the content of its document without prior notice. Please check www.l-acoustics.com on a regular basis to download the latest document and software updates.

  • Page 9: System Components

    System components System components Loudspeaker enclosures ® A15i Focus 2-way passive constant curvature WST 10° enclosure: 15" LF + 3" HF diaphragm (installation version) ® A15i Wide 2-way passive constant curvature WST 30° enclosure: 15" LF + 3" HF diaphragm (installation version) KS21i High power compact subwoofer: 1 x 21"...

  • Page 10: Loudspeaker Cables

    System components A15iKS21i-ULINK Rigging plates for ying A15i under KS21i with A-U15i KS21i-ULINK Rigging plates for ying two KS21i with A-U15i Transportation accessories A15iFOCUS-SCREEN Acoustically transparent front screen for A15i Focus A15iWIDE-SCREEN Acoustically transparent front screen for A15i Wide A15iFOCUS-SCREEN- Acoustically transparent front screen for A15i Focus with A15i-LIFT LIFT A15iWIDE-SCREEN-...

  • Page 11: Rigging Elements

    System components Rigging elements A15i-BUMP M-BARi A15i-RIGBAR A15i-LIFT A-U15i A15iFOCUS-SCREEN A15iFOCUS- A15iWIDE- A15iWIDE-SCREEN SCREEN-LIFT SCREEN-LIFT KS21i-SCREEN Rigging plates On enclosure A15iFOCUS-LINK A15iFOCUS-ENDLINK A15iWIDE-LINK A15iWIDE-ENDLINK Rigging plates End rigging plates Rigging plates End rigging plates for A15i Focus for A15i Focus for A15i Wide for A15i Wide A15i owner's manual (EN) version 1.0...
  • Page 12 System components KS21i-LINK KS21i- KS21i-SLINK KS21i-ENDSLINK ENDLINK Rigging plates Rigging plates for End rigging plates for for KS21i End rigging A15i under KS21i A15i under KS21i plates for KS21i A15i-TILTBRACKET FIXBRACKET Fastening brackets Fastening with angles for A15i brackets for A15i, A10i and KS21i Inter-enclosure...

  • Page 13: Electro-Acoustical Description

    Electro-acoustical description Electro-acoustical description Adjustable ns A15i Focus and A15i Wide feature L-Fins to adjust the waveguide directivity to one of four settings: 110° / 70° symmetric or 90° asymmetric (35°/55° or 55°/35°). The same [A15] preset drives all directivity settings of both enclosures. Within a line source, combine A15i Focus and A15i Wide with custom directivity settings to improve SPL mapping and throw capability.
  • Page 14 Electro-acoustical description 70° setting Setting the ns in the 35° position offers an additional 2 dB on-axis (> 2 kHz). 90° settings Setting the ns in the 90° position offers an additional 1 dB on-axis (> 2 kHz). A15i owner's manual (EN) version 1.0...
  • Page 15 Electro-acoustical description Mixed settings A15i owner's manual (EN) version 1.0...

  • Page 16: Directivity

    Electro-acoustical description Directivity A15i Focus A15i Focus generates an enclosure directivity pattern of 10° and a waveguide directivity pattern of 70° / 110° symmetric or 90° asymmetric (-6 dB) depending on the ns settings. 1001 00010 000 Frequency (Hz) Dispersion angle diagram of one upright A15i Focus, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB.
  • Page 17 Electro-acoustical description -100 -120 -140 -160 -180 1001 00010 000 Frequency (Hz) Dispersion angle diagram of one A15i Focus with 70° ns setting, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB. A15i owner's manual (EN) version 1.0...
  • Page 18 Electro-acoustical description A15i Wide A15i Wide generates an enclosure directivity pattern of 30° and a waveguide directivity pattern of 70° / 110° symmetric or 90° asymmetric (-6 dB) depending on the ns settings. 1001 00010 000 Frequency (Hz) Dispersion angle diagram of one upright A15i Wide, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB.

  • Page 19: Symmetrical ConGurations

    Electro-acoustical description -100 -120 -140 -160 -180 1001 00010 000 Frequency (Hz) Dispersion angle diagram of one A15i Wide with 70° ns setting, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB. Symmetrical congurations The A15i rigging system is designed to enable a completely symmetrical setup for stereo applications. A15i owner's manual (EN) version 1.0...

  • Page 20: Preset Description

    Electro-acoustical description Preset description [A15] outputs channels routing gain delay polarity mute OUT 1 IN A 0 dB 0 ms OUT 2 IN A 0 dB 0 ms OUT 3 IN A 0 dB 0 ms OUT 4 IN A 0 dB 0 ms [A15_FI]...

  • Page 21: Connectors

    A15i Focus A15i Wide 1 × 4-point terminal block with push-in 1 × 4-point terminal block with push-in connection connection Internal pinout for L-Acoustics 2-way passive enclosures terminal block points IN + IN - Transducer connectors KS21i 1 × 4-point terminal block with push-in connection...

  • Page 22: Rigging System Description

    Rigging system description Rigging system description A15i system rigging The A15i system is the installation version of the A15 system and features a simplied rigging system to optimize visual impact. The enclosures arrays are assembled with rigging plates and rigging accessories suited for installation. Like the A15 system, the enclosures can be deployed in vertical or horizontal arrays.

  • Page 23: Enclosures

    Rigging system description Enclosures A15i Wide/Focus A15i Wide/Focus is compatible with two types of rigging plate kits: • standard rigging plates • end rigging plates (A15iFOCUS-LINK / A15iWIDE-LINK) (A15iFOCUS-ENDLINK / A15iWIDE-ENDLINK) A15iFOCUS-LINK can be used to add an inter-element angle of 5° between two A15i Focus. A15i Wide/Focus feature on each side: •...
  • Page 24 Rigging system description Rigging screws Only use the rigging screws provided by L-Acoustics. Do not use the placeholder screws for rigging. Always put the placeholder screws back in place to avoid leaks. A15i Wide/Focus feature two lodgings to create radial arrays with A15i-LIFT (p.31).

  • Page 25: Ks21I

    Rigging system description Four M6 inserts are available at the back of A15i Wide/Focus for compatible rigging accessories. 75 mm / 3 in KS21i KS21i is compatible with four types of rigging plate kits: • standard rigging plates • S-shaped standard rigging plates (KS21i-LINK) (KS21i-SLINK) •...
  • Page 26 The inserts are tted with placeholder screws. Rigging screws Only use the rigging screws provided by L-Acoustics. Do not use the placeholder screws for rigging. Always put the placeholder screws back in place to avoid leaks. A15i owner's manual (EN) version 1.0...

  • Page 27: Rigging Elements For Own Arrays

    Rigging system description Rigging elements for own arrays A15i-BUMP A15i-BUMP is a reversible rigging frame for ying vertical arrays of A15i Wide/Focus or KS21i. A15i-BUMP is secured to the array with four M6x18 rigging screws and M6 nuts (provided). Multiple pickup points are available for site angle adjustments: 16 pickup points on each side, one front pickup point (F), and one rear pickup point (R).

  • Page 28: M-Bari

    Rigging system description A15i-BUMP can be used as the main lifting accessory for ying vertical arrays of A15i Wide/Focus and KS21i with one or two lifting points. M-BARi The M-BARi extension bar can be secured on A15i-BUMP to extend the site angle capability of A15i Wide/Focus and KS21i arrays.

  • Page 29: A15I-Rigbar

    Rigging system description Seventeen pickup points are available. They are compatible with Ø19 mm shackles WLL 3.25 t (two provided). 9 10 11 12 13 14 15 16 A15i-RIGBAR A15i-RIGBAR is a rigging bar for pullback congurations. Secured at the bottom of the array, A15i-RIGBAR can be used as a pullback either with A15i-BUMP or with another A15i- RIGBAR as the main lifting accessory.
  • Page 30 Rigging system description When used at the top of the array as the main lifting accessory, A15i-RIGBAR can be secured at the front for an initial positive site angle. A15i-RIGBAR is secured to the enclosure with two M6x40 screws (provided). A15i owner's manual (EN) version 1.0...

  • Page 31: A15I-Lift

    Rigging system description The pickup points are compatible with Ø12 mm shackles WLL 1 t (two provided) and CLAMP250. When using A15i-RIGBAR as the main lifting accessory, always implement a secondary safety using available holes. One pickup point pickup point safety points Two pickup points safety point...
  • Page 32 Rigging system description Additional safety with A15i-LIFT On each enclosure on which A15i-LIFT is secured, secure a DIN580 eye bolt to the dedicated insert to implement a secondary safety. Use a shackle and a steel wire rope. Make sure the steel rope is as tensed as possible without bearing the load. A scalable radial array of A15i Wide/Focus can be created using multiple A15i-LIFT.
  • Page 33 Rigging system description Seventeen holes are available for site angle adjustment. They are compatible with Ø12 mm shackles WLL 1 t (two provided). A15i-LIFT pickup point Select the same pickup point on each A15i-LIFT within an array of up to 6 enclosures. For larger arrays, refer to Radial arrays of 7 enclosures and more (p.112).

  • Page 34: Rigging Elements For Other ConGurations

    Rigging system description Rigging elements for other congurations A-U15i A-U15i is a U-bracket for mounting A15i Wide/Focus or KS21i on a ceiling, a wall, or a truss. In combination with A15i-ULINK, A15iKS21i-ULINK, or KS21i-ULINK, A-U15i can be used to mount or y vertical arrays of two A15i Wide/Focus or KS21i.
  • Page 35 Rigging system description A-U15i is secured to each side of the enclosure by two M8 screws: the central screw and the angulation screw. central screw angulation screw Position the central screw in the bottom insert to reduce space between the enclosure and the ceiling. angulation screw central screw The angle can be set between -30°...

  • Page 36: Ai-Fixbracket / A15I-Tiltbracket

    Rigging system description Ai-FIXBRACKET / A15i-TILTBRACKET Ai-FIXBRACKET is a set of four fastening brackets for A15i Wide/Focus and KS21i. The enclosure is secured to Ai- FIXBRACKET using the slotted hole. Secure Ai-FIXBRACKET at the bottom of an array to improve stability. A15i-TILTBRACKET is a set of four fastening brackets with site angle adjustment for a stack of up to four A15i Wide/ Focus.
  • Page 37 Rigging system description Secure A15i-TILTBRACKET at the bottom of an array of up to two A15i Wide/Focus to adjust the site angle. The angle can be set between 0° and -25° in 2.5° steps. -25° -22.5° -20° -17.5° -15° -12.5° -10°...

  • Page 38: A15I-Tilt

    Rigging system description A15i-TILT A15i-TILT is a site angle adjustment accessory for linking KS21i and A15i Wide/Focus in a stacked or own array. The inter-element angle can be set between 0° and -25° in 2.5° steps. -25° -22.5° -20° -17.5° -15°...

  • Page 39: Front Screens

    Rigging system description Front screens The A15i system features ve acoustically transparent front screens suitable for every conguration. The screens are secured on top of the rigging plates with four M6 rigging screws: • Two M6x20 screws on the ns side (A15i Wide/Focus) or vent side (KS21i). •...
  • Page 40 Rigging system description The screws of the grill and the placeholder screws on the ns side can be removed through the rigging plates. The screens are equipped with tabs to hold the grill in place when securing the screen on the enclosure. A15i owner's manual (EN) version 1.0...
  • Page 41 Rigging system description KS21i-SCREEN can be secured to the back of KS21i when used in cardioid conguration. A15iFOCUS-SCREEN-LIFT and A15iWIDE-SCREEN-LIFT are dedicated screens for A15i Wide/Focus own in radial congurations. The screens are designed to t on an A15i Wide/Focus enclosure assembled with A15i-LIFT. A15i owner's manual (EN) version 1.0...

  • Page 42: Mechanical Safety

    Mechanical safety Mechanical safety Flown congurations The A15i rigging system complies with 2006/42/EC: Machinery Directive. It has been designed following the guidelines of BGV-C1. 2006/42/EC: Machinery Directive species a safety factor of 4 against the rupture. The own deployments described in this manual achieve a safety factor of 4 or more.
  • Page 43 Mechanical safety Other congurations For other congurations, respect the recommended maximum limit for optimal stability. A15i Wide/Focus conguration rigging accessory maximum / safe limit Stacked vertical array Ai-FIXBRACKET + rigging plates Stacked vertical array with A15i-TILTBRACKET + rigging plates angle adjustment KS21i conguration rigging accessory...
  • Page 44 Mechanical safety Assessing mechanical safety Mechanical safety of the rigging system Before any installation, always model the system in Soundvision and check the Mechanical Data section for any stress warning or stability warning. In order to assess the actual safety of any array conguration 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.

  • Page 45: Loudspeaker ConGurations

    Loudspeaker congurations Loudspeaker congurations A15i Wide/Focus line source In this conguration the system operates over the nominal bandwidth of the enclosures. The [A15] preset delivers a reference frequency response in medium throw applications. The A15i Wide/Focus enclosures are driven by the LA2Xi / LA4X / LA8 / LA12X amplied controllers. Preset [A15] 41 Hz - 20 kHz (A15i Focus)

  • Page 46: With Low-Frequency Element

    Loudspeaker congurations A15i Wide/Focus line source with low-frequency element In this conguration, the bandwidth of the A15i system is extended down to 29 Hz and the LF contour is reinforced. The [KS21_60] preset provides KS21i with an upper frequency limit at 60 Hz. The A15i Wide/Focus and KS21i enclosures are driven by the LA2Xi / LA4X / LA8 / LA12X amplied controllers.

  • Page 47: A15I Wide/Focus Line Source Element

    Loudspeaker congurations presets pre-alignment delay values and polarity settings [A15] or [A15_FI] + [KS21_60_Cx] A15 Wide/Focus = 8 ms KS21 = 0 ms A15i Wide/Focus line source element A single A15i Wide/Focus can be used as a line source element. In this conguration, the system operates over the nominal bandwidth of the enclosure.
  • Page 48 Loudspeaker congurations Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. Pre-alignment delays presets pre-alignment delay values and polarity settings [A15] or [A15_FI] + [KS21_60] A15 Wide/Focus = 3.5 ms KS21 = 0 ms [A15] or [A15_FI] + [KS21_60_C] A15 Wide/Focus = 9 ms KS21 = 0 ms...

  • Page 49: Rigging Procedures

    Rigging procedures Rigging procedures General principles Because of the highly-modular nature of the rigging system, not all possible congurations are described in the rigging procedures. This introduction provides general principles applicable for all congurations. References For information on radial congurations with A15i-LIFT, refer to APPENDIX A: Authorized congurations with A15i-LIFT (p.111).
  • Page 50 Rigging procedures Securing rigging plates between two enclosures • Always secure standard rigging plates with the linking section upwards. • After securing an enclosure to another enclosure, tighten all the screws on the supporting enclosure. 5 N.m A15i owner's manual (EN) version 1.0...
  • Page 51 Rigging procedures • In an A15i Wide/Focus array, make sure that the ns are on the same side. Additionally, in a KS21i / A15i Wide/ Focus mixed array, make sure that the ns of A15i Wide/Focus are on the same side as the vents of KS21i. Screws •...

  • Page 52: Tools

    Rigging procedures Stacked congurations Fastening brackets Always secure a stacked array to the ground using Ai-FIXBRACKET / A15i-TILTBRACKET to ensure stability of the array. Tools Before performing rigging procedures on this product, make sure all the tools listed are available. References are given ®...

  • Page 53: Flying

    Rigging procedures Flying Flying a vertical array with A15i-BUMP Type of deployment own array Rigging accessories A15i-BUMP A15i Wide/Focus / KS21i rigging plates 2 x Ø12 mm shackle WLL 1 t (provided) M-BARi (optional) A15i-TILT (optional) Additional accessories M6x18 rigging screws (provided) M6 nuts (provided) T30 Torx bit Min number of operators...
  • Page 54 Rigging procedures A15i Wide/Focus array Procedure 1. Prepare the A15i Wide/Focus enclosures by removing the placeholder screws and securing rigging plates on both sides. 2. Secure A15i-BUMP on top of A15i Wide/Focus. Optionally, secure an M-BARi on A15i-BUMP to extend the site angle capability. Use the provided rigging axes.
  • Page 55 Rigging procedures 4. Secure the additional A15i Wide/Focus under the array: This step requires three operators. Hold the enclosure at the bottom until the rigging plates are secured. Lift the rear of the new A15i Wide/Focus and secure it to the array by pre-tightening a rigging screw on both sides.
  • Page 56 Rigging procedures e) Repeat the procedure until the A15i Wide/Focus array is completed. 5. Check that all the screws are secured and tightened (5 N.m torque) and raise the array. What to do next Securing a screen (p.94) A15i owner's manual (EN) version 1.0...
  • Page 57 Rigging procedures KS21i and A15i Wide/Focus array Procedure 1. Prepare the enclosures by removing the placeholder screws and securing rigging plates on both sides. KS21i A15i Wide/Focus Linking KS21i to A15i Wide/Focus Use KS21i-SLINK instead of KS21i-LINK for the last KS21i in a KS21i / A15i Wide/Focus hybrid array. 2.
  • Page 58 Rigging procedures 3. Select the pick-up point and raise the array. 9 10 11 12 13 14 15 16 FRONT 9 10 11 12 13 14 15 16 4. Secure an additional KS21i under the array: This step requires three operators. Hold the enclosure at the bottom until the rigging plates are secured.
  • Page 59 Rigging procedures c) Link the KS21i enclosures at the front with rigging screws. d) Tighten all the screws on the supporting KS21i. Apply a torque of 5 N.m. e) Repeat the procedure until the KS21i array is completed. A15i owner's manual (EN) version 1.0...
  • Page 60 Rigging procedures 5. For a KS21i / A15i Wide/Focus hybrid array, secure additional A15i Wide/Focus (refer to A15i Wide/Focus array (p.54), from step (p.55)). For a hybrid array using A15i-TILT, refer to KS21i / A15i Wide/Focus array with A15i-TILT (p.61). 6.
  • Page 61 Rigging procedures KS21i / A15i Wide/Focus array with A15i-TILT Procedure 1. Prepare a KS21i array as described in KS21i and A15i Wide/Focus array (p.57). 2. Secure A15i-TILT at the bottom of the array. 3. Prepare the rst A15i Wide/Focus by removing the placeholder screws and securing end rigging plates on both sides.
  • Page 62 Rigging procedures b) Lift the rear of the enclosure and secure it to A15i-TILT at the desired angle. 5. Prepare additional A15i Wide/Focus by removing the placeholder screws and securing rigging plates on both sides. 6. Secure the additional A15i Wide/Focus under the array: a) Remove the rigging screws at the bottom rear on both sides of the supporting A15i Wide/Focus.
  • Page 63 Rigging procedures This step requires three operators. Hold the enclosure at the bottom until the rigging plates are secured. Lift the rear of the new A15i Wide/Focus and secure it to the array by pre-tightening a rigging screw on both sides.
  • Page 64 Rigging procedures f) Repeat the procedure until the A15i Wide/Focus array is completed. 7. Check that all the screws are secured and tightened (5 N.m torque) and raise the array. What to do next Securing a screen (p.94) A15i owner's manual (EN) version 1.0...

  • Page 65: Flying A Vertical Array With A15I-Rigbar

    Rigging procedures Flying a vertical array with A15i-RIGBAR Type of deployment own array Rigging accessories A15i-RIGBAR A15i Wide/Focus / KS21i rigging plates 2 x Ø12 mm shackle WLL 1 t (provided) Additional accessories M6x18 rigging screws (provided) T30 Torx bit Min number of operators Rigging plates A15iFOCUS-LINK...
  • Page 66 Rigging procedures Assembly Procedure 1. Prepare the rst enclosure by removing the placeholder screws and securing rigging plates on both sides. A15i Wide/Focus KS21i 2. Secure A15i-RIGBAR at the rear of the enclosure. Secure A15i-RIGBAR at the front for a positive initial site angle. A15i Wide/Focus KS21i 3.

  • Page 67: Adding A Pullback With A15I-Rigbar

    Rigging procedures Adding a pullback with A15i-RIGBAR Type of deployment own array with pullback Rigging accessories A15i-RIGBAR 1 x Ø12 mm shackle WLL 1 t (provided) Additional accessories M6x40 screws (provided) M6x18 rigging screws (provided) T30 Torx bit Min number of operators Risk of falling objects Verify that no unattached items remain on the product or assembly.
  • Page 68 Rigging procedures 5. Secure a shackle to A15i-RIGBAR and lift it with an additional motor. A15i owner's manual (EN) version 1.0...

  • Page 69: Flying A Radial Array With A15I-Lift

    Rigging procedures Flying a radial array with A15i-LIFT Type of deployment own radial array Rigging accessories A15i Wide/Focus rigging plates one A15i-LIFT for three enclosures LA-SLING2T or a bridle (optional) Ø12 mm shackles WLL 1 t (provided) Additional accessories M6x18 rigging screws (provided) T30 Torx bit Min number of operators Rigging plates...
  • Page 70 Rigging procedures A15i-LIFT quantity and position Use one A15i-LIFT for up to three enclosures in the array. Do not leave more than two adjacent enclosures unsupported. Refer to APPENDIX A: Authorized congurations with A15i-LIFT (p.111). Risk of tilting When using a single motor or a bridle, make sure the array is symmetrical. Assembly Procedure 1.
  • Page 71 Rigging procedures 2. Remove the placeholder screws and connect the enclosures at the top using the rigging plates. End links Start by using end rigging plates on the leftmost or rightmost enclosure of the array, then proceed towards the other side. Do not add inter-element angle with A15iFOCUS-LINK in radial congurations.
  • Page 72 Rigging procedures b) Insert the stub at the front of the enclosure. c) Insert the stub at the rear and secure the rigging axis. 5. On each A15i-LIFT, secure a shackle to the desired pickup point. A15i-LIFT pickup point Select the same pickup point on each A15i-LIFT within an array of up to 6 enclosures. For larger arrays, refer to Radial arrays of 7 enclosures and more (p.112).
  • Page 73 Rigging procedures For this operation, do not stand under the array. 7. Secure the enclosures at the bottom using the dedicated rigging plates. End links Start by using end rigging plates on the leftmost or rightmost enclosure of the array, then proceed towards the other side.

  • Page 74: Wall-Mounting Or Ceiling-Mounting

    Rigging procedures Wall-mounting or ceiling-mounting Mounting an assembly with A-U15i Type of deployment ceiling-mounting, wall-mounting Rigging accessories A-U15i U-bracket rigging plates Additional accessories M8x35 rigging screws (provided) 4 x M10 screws and anchors T40 Torx bits Min number of operators Rigging plates A15i-ULINK A15iKS21i-ULINK...
  • Page 75 Rigging procedures Assembly Procedure Fasteners for wall-mounting or ceiling-mounting Select screw length and anchors applicable to the wall or ceiling properties. 1. Mount A-U15i on the ceiling or on the wall using four M10 screws. When using a U-bracket horizontally, make sure the hooks are oriented upwards. 781 mm / 30.7 in 120 mm / 4.7 in Ø...
  • Page 76 Rigging procedures 4. Mount the enclosure on A-U15i. This step requires two operators. Hold the enclosure at the bottom on each side. 5. Set the angle: For a single enclosure: a. Rotate the enclosure to align the second insert with the selected site angle. b.
  • Page 77 Rigging procedures For a two-enclosure assembly: This conguration limits the site angle. Refer to APPENDIX B: Congurations with A-U15i (p.113) for a list of possible site angles for each enclosure. a. Slide the A15i-ULINK / A15iKS21i-ULINK / KS21i-ULINK rigging plates between A-U15i and the enclosure, with the hooks facing front.
  • Page 78 Rigging procedures c. Drive a screw on both sides. d. Tighten all the screws. Apply a torque of 7 N.m. 6. Prepare a new enclosure. KS21i A15i Wide/Focus Remove the two placeholder screws at the center of Remove the central and top placeholder screws at the each side of the enclosure.
  • Page 79 Rigging procedures 7. Secure the enclosure to the U-bracket rigging plates. Apply a torque of 7 N.m. A15i Focus A15i Wide KS21i Bottom A15i Focus A15i-ULINK A15i-ULINK A15iKS21i-ULINK A15i Wide A15i-ULINK A15i-ULINK A15iKS21i-ULINK KS21i Not allowed Not allowed KS21i-ULINK If the two enclosures are misaligned at the front, loosen the screws on the U-rigging plates and realign the two enclosures, then re-tighten the screws.

  • Page 80: Mounting An Assembly On A Ceiling With A15I-Tiltbracket

    Rigging procedures Mounting an assembly on a ceiling with A15i-TILTBRACKET Type of deployment ceiling-mounting Rigging accessories A15i-TILTBRACKET A15i Wide/Focus rigging plates Additional accessories M6x18 rigging screws (provided) 4 x M10 screws and anchors T30 Torx bits Min number of operators Rigging plates A15iFOCUS-LINK A15iFOCUS-ENDLINK...
  • Page 81 Rigging procedures Realized site angles (with A15i-TILTBRACKET at the rear) selected angle realized site angle on A15i- A15i Focus A15i Wide TILTBRACKET 25° 20° 10° 22.5° 17.5° 7.5° 20° 15° 5° 17.5° 12.5° 2.5° 15° 10° 0° 12.5° 7.5° -2.5° 10°...
  • Page 82 Rigging procedures 3. Secure the front of the enclosure to Ai-FIXBRACKET. 4. Lift the rear of the enclosure and secure it to A15i-TILTBRACKET at the desired angle. 0° 2.5° 5° 7.5° 10° 12.5° 15° 17.5° 20° 22.5° 25° 5. Tighten the screws on A15i-TILTBRACKET (5 N.m torque). A15i owner's manual (EN) version 1.0...
  • Page 83 Rigging procedures 6. Prepare a new enclosure by removing the placeholder screws and securing rigging plates. 7. Remove the bottom screws of the supporting enclosure. 8. Link the two enclosures at the rear by pre-tightening a rigging screw on both sides. This step requires three operators.
  • Page 84 Rigging procedures 9. Link the two enclosures at the front by pre-tightening a rigging screw on both sides. 10. Check that all the screws are secured and tightened (5 N.m torque). What to do next Securing a screen (p.94) A15i owner's manual (EN) version 1.0...

  • Page 85: Stacking

    Rigging procedures Stacking Stacking A15i Wide/Focus on KS21i with A15i-TILT Type of deployment stacked array Rigging accessories A15i Wide/Focus / KS21i rigging plates Ai-FIXBRACKET A15i-TILT Additional accessories M6x18 rigging screws (provided) 4 x M10 screws and anchors T30 Torx bits Min number of operators Rigging plates KS21i-LINK...
  • Page 86 Rigging procedures Ai-FIXBRACKET / A15i-TILTBRACKET in stacked conguration In a stacked conguration, the array applies a force of 110 daN on the anchoring points. Do not use A15i-TILT between two A15i Wide/Focus. Realized site angles (with A15i-TILT at the rear) realized site angle selected angle on A15i-TILT...
  • Page 87 Rigging procedures Assembly Procedure 1. Prepare a KS21i by removing the placeholder screws and securing rigging plates on both sides. 2. Secure Ai-FIXBRACKET to the ground using M10 screws. Fasteners for wall-mounting or ceiling-mounting Select screw length and anchors applicable to the wall or ceiling properties. 828 mm / 32.6 in 3.
  • Page 88 Rigging procedures 4. Secure up to three additional KS21i on top of the rst one. For the last KS21i, use KS21i-ENDSLINK and secure A15i-TILT on top. Tighten all the screws on the previous enclosure after securing each new enclosure. 5. Prepare a A15i Wide/Focus by removing the placeholder screws and securing rigging plates on both sides. A15i owner's manual (EN) version 1.0...
  • Page 89 Rigging procedures 6. Secure the front of A15i Wide/Focus on top of the array. 7. Secure the rear of the enclosure to A15i-TILT at the selected angle. Risk of crushing injury Keep ngers away from the contact area between A15i-TILT and the enclosure. -25°...
  • Page 90 Rigging procedures 8. Secure up to three additional A15i Wide/Focus on top of the rst one. For the last A15i Wide/Focus, use A15iFOCUS-ENDLINK / A15iWIDE-LINK. What to do next Securing a screen (p.94) A15i owner's manual (EN) version 1.0...

  • Page 91: Stacking A15I Wide/Focus With A15I-Tiltbracket

    Rigging procedures Stacking A15i Wide/Focus with A15i-TILTBRACKET Type of deployment stacked assembly Rigging accessories A15i Wide/Focus rigging plates A15i-TILTBRACKET Additional accessories M6x18 rigging screws (provided) 4 x M10 screws and anchors T30 Torx bits Min number of operators Rigging plates A15iFOCUS-LINK A15iFOCUS-ENDLINK A15iWIDE-LINK...
  • Page 92 Rigging procedures Assembly Procedure 1. Prepare a A15i Wide/Focus by removing the placeholder screws and securing rigging plates on both sides. 2. Secure A15i-TILTBRACKET to the ground using M10 screws. Fasteners for wall-mounting or ceiling-mounting Select screw length and anchors applicable to the wall or ceiling properties. 829 mm / 32.6 in 3.
  • Page 93 Rigging procedures 4. Secure the rear of the enclosure to A15i-TILTBRACKET at the desired angle. -25° -22.5° -20° -17.5° -15° -12.5° -10° -7.5° -5° -2.5° 0° 5. Tighten the screws on A15i-TILTBRACKET. 6. Prepare a new A15i Wide/Focus enclosure by removing the placeholder screws and securing end rigging plates on both sides.

  • Page 94: Securing A Screen

    Rigging procedures Securing a screen Accessory A15iFOCUS-SCREEN / A15iWIDE-SCREEN / A15iFOCUS-SCREEN-LIFT / A15iWIDE-SCREEN-LIFT / KS21i-SCREEN Additional accessories 2 x M6x20 screws (provided) 2 x M6x35 screws (for A15i Wide/Focus, provided) 2 x M6x55 screws (for KS21i, provided) 4 x self-sticking washers (for congurations with a U-bracket, provided) T30 Torx bit Min number of operators Assembly...
  • Page 95 Rigging procedures Procedure 1. Remove the placeholder screws on the ns side and the grill screws from the inserts. 2. Secure the screen using the provided rigging screws. Apply a torque of 5 N.m. Risk of damaging the ns When securing a screen to A15i Wide/Focus, make sure to use M6x20 screws on the ns side. A15i owner's manual (EN) version 1.0...
  • Page 96 Rigging procedures For congurations with A-U15i, stick the provided washers on the cabinet before securing the screen on the enclosure. Risk of bending screen xing tabs Always use the self-sticking washers for securing screens when there are no rigging plates on the enclosure. Secure the screen to the back of KS21i when used in cardioid conguration.

  • Page 97: Connection To La AmpliEd Controllers

    Connection to LA amplied controllers Connection to LA amplied controllers Enclosure drive capacity per amplied controller Make sure the total number of connected enclosures does not exceed the maximum number of enclosures per controller (refer to the footnotes). LA2Xi LA4X LA12X per output / total...
  • Page 98 Connection to LA amplied controllers Cabling schemes for A15i Wide/Focus / KS21i (LA4X / LA8 / LA12X) Refer to the cabling schemes to connect the enclosures to different types of output congurations. One-channel speakON output custom speakON 2.5 mm² cable 1+/1- Two-channel speakON output CH(1)

  • Page 99: Cabling

    Connection to LA amplied controllers Cabling Accessory connector sealing plate (provided) Additional accessories 4 x M5x16 screws (provided) T25 Torx bit Min number of operators Assembly Prerequisite APPENDIX C: Recommendation for speaker cables (p.116). Procedure 1. On the connector sealing plate, remove the sealing nut from the cable gland. 2.
  • Page 100 Connection to LA amplied controllers 3. Insert the cable in the cable gland. 4. Strip the wires of the cable. 30 mm 10 mm 5. Secure the wires in the connectors. Use a small tool to unlock the connectors. A15i owner's manual (EN) version 1.0...
  • Page 101 Connection to LA amplied controllers 6. Secure the connector sealing plate to the connector plate. 3 N.m 7. Tighten the sealing nut. What to do next To connect a second enclosure in parallel, remove the protective plug from the second cable gland and repeat the procedure.

  • Page 102: SpeciCations

    Specications Specications A15i Focus specications Description ® 2-way passive constant curvature WST 10° enclosure: 15" LF + 3" HF diaphragm (installation version), amplied by LA2Xi / LA4X / LA8 / LA12X Usable bandwidth (-10 dB) 41 Hz - 20 kHz ([A15]) Maximum SPL 144 dB ([A15]) with LA2Xi (bridge mode) / LA4X / LA8 / LA12X 139 dB ([A15]) with LA2Xi...
  • Page 103 Specications A15i Focus dimensions 752 mm / 29.6 in A15i owner's manual (EN) version 1.0...
  • Page 104 Specications A15i Wide specications ® Description 2-way passive constant curvature WST 30° enclosure: 15" LF + 3" HF diaphragm (installation version), amplied by LA2Xi / LA4X / LA8 / LA12X Usable bandwidth (-10 dB) 42 Hz - 20 kHz ([A15]) Maximum SPL 141 dB ([A15]) with LA2Xi (bridge mode) / LA4X / LA8 / LA12X 136 dB ([A15]) with LA2Xi...
  • Page 105 Specications A15i Wide dimensions 752 mm / 29.6 in A15i owner's manual (EN) version 1.0...
  • Page 106 Specications KS21i specications Description High power compact subwoofer: 1 x 21" (installation version), amplied by LA2Xi / LA4X / LA8 / LA12X Usable bandwidth (-10 dB) 31 Hz - 100 Hz ([KS21_100]) Maximum SPL 138 dB ([KS21_100]) with LA2Xi (bridge mode) / LA4X / LA8 / LA12X 131 dB ([KS21_100]) with LA2Xi Nominal directivity (-6 dB) standard or cardioid conguration...
  • Page 107 Specications KS21i dimensions 752 mm / 29.6 in 602 mm / 23.7 in A15i owner's manual (EN) version 1.0...
  • Page 108 Specications A-U15i specications Description U-bracket for A15i and KS21i Weight (net) 4.9 kg / 11 lb Material high grade steel with anti-corrosion coating A-U15i dimensions 150 mm / 5.9 in 823 mm / 32.4 in 135 mm / 5.3 in A15i owner's manual (EN) version 1.0...
  • Page 109 Specications A15i-BUMP specications Description Flying frame for vertical deployment of A15i and KS21i Weight (net) 16 kg / 35 lb Material high grade steel with anti-corrosion coating A15i-BUMP dimensions 656 mm / 25.8 in 600 mm / 23.6 in 758 mm / 29.8 in A15i-RIGBAR specications Description Rigging bar and pullback for A15i and KS21i...
  • Page 110 Specications A15i-LIFT specications Description Rigging element for horizontal deployment of A15i Weight (net) 2.4 kg / 5.3 lb Material high grade steel with anti-corrosion coating A15i-LIFT dimensions 50 mm / 2 in 25 mm / 1 in 629 mm / 24.8 in M-BARi specications Description Extension bar for rigging frame (installation version)

  • Page 111: Appendix A: Authorized ConGurations With A15I-Lift

    Authorized congurations with A15i-LIFT Authorized congurations with A15i-LIFT Safety instructions Additional safety with A15i-LIFT On each enclosure on which A15i-LIFT is secured, secure a DIN580 eye bolt to the dedicated insert to implement a secondary safety. Use a shackle and a steel wire rope. Make sure the steel rope is as tensed as possible without bearing the load. A15i-LIFT quantity and position Use one A15i-LIFT for up to three enclosures in the array.
  • Page 112 Authorized congurations with A15i-LIFT Radial arrays of 1 to 6 enclosures Refer to the illustrations to distribute the A15i-LIFT bars on the array. 1 enclosure : 2 enclosures : 3 enclosures : 4 enclosures : 2 A15i-LIFT 1 A15i-LIFT 2 A15i-LIFT 1 A15i-LIFT 5 enclosures : 2 A15i-LIFT 6 enclosures : 2 A15i-LIFT...

  • Page 113: Appendix B: ConGurations With A-U15I

    Congurations with A-U15i Congurations with A-U15i A15i Wide/Focus Inserts for U-bracket conguration number of reference coverage resolution holes used on enclosure enclosures axis B+C (for -30° A+B (for -25° 0° (site) -30° / +30° 5° to +30° in to +25° in 10°...
  • Page 114 Congurations with A-U15i conguration number of reference coverage resolution holes used on enclosure enclosures axis B+C (for -30° A+B (for -25° 0° (azimuth) -30° / +30° 10° to +30° in to +25° in 10° steps) 10° steps) KS21i Inserts for U-bracket Both holes are used in every conguration.
  • Page 115 Congurations with A-U15i conguration number of reference coverage resolution holes used enclosures axis on enclosure 0° / +20° (wall)* 0° (site) 10° -20° / +20° (pillar) Refer to coverage 0° (site) 10° table (p.115) 0° / +20° (wall)* (-30° to 0°...

  • Page 116: Appendix C: Recommendation For Speaker Cables

    8 Ω load 4 Ω load 2.7 Ω load Use the more detailed L-Acoustics calculation tool to evaluate cable length and gauge based on the type and number of enclosures connected. The calculation tool is available on our website: https://www.l-acoustics.com/en/installation/tools/...

  • Page 117: Appendix D: SpeciCations For Custom Rigging Systems

    Specications for custom rigging systems Specications for custom rigging systems Dimensions 752 + 3 mm / 29.6 + 0.12 in 709.9 mm / 27.95 in 407.4 mm / 16.04 in 395.1 mm / 15.56 in A15i Focus A15i Wide A15i owner's manual (EN) version 1.0...
  • Page 118 Specications for custom rigging systems 751.6 + 3 mm / 29.6 + 0.12 in 542 mm / 21.3 in 276 mm / 10.9 in 409 mm / 16.1 in KS21i Screws • The grade and threaded length of screws used on the enclosures depend on the design of the metal sheets on the array.
  • Page 119 L-Acoustics 13 rue Levacher Cintrat - 91460 Marcoussis - France +33 1 69 63 69 63 - info@l-acoustics.com www.l-acoustics.com...

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A15i focusA15i wideKs21iA-u15iA15i-bumpA15i-rigbar ... Show all

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