L-Acoustics K1 Owner's Manual
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L-Acoustics K1 Owner's Manual

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  • Page 1 owner's manual (EN)
  • Page 2 Document reference: K1 owner's manual (EN) version 1.0 Distribution date: June 12, 2024 © 2024 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................................6 Instructions..............................6 Introduction................................ 8 K1 large format WST line source....................... 8 How to use this manual..........................9 Revision history............................9 System components............................10 System component illustrations........................11 Electro-acoustical description..........................14 Directivity............................... 14 Preset description............................ 15 Connectors............................. 16 Rigging system description..........................18 K1/K1-SB...............................18 Rigging elements.............................20...
  • Page 4 Attaching a block of four K1 under a K1 array................82 Attaching a block of four K2 under a K1/K1-SB array..............86 Rigging a Kara II downll array under a K1 array with KARA-DOWNK1..........93 Flying a K1 array with K1-BUMP using the CATERPILLAR method............97 Connection to LA amplied controllers......................
  • Page 5 K2 specications...........................126 K1-SB specications..........................128 Kara II..............................130 KS28..............................132 K1-BPCHAIN............................134 K1-BUMP..............................135 K1-CHARIOT2............................136 K1-DELTA specications..........................137 K1-LASERMOUNT specications......................138 K1-PLA ..............................139 KARA-DOWNK1 specications.......................140 K2-LINK specications........................... 141 K-BUMPFLIGHT specications......................... 142 KS28-OUTRIG............................143 APPENDIX: Recommendation for speaker cables....................144 APPENDIX: Installing a laser inclinometer......................145 K1-LASERMOUNT..........................

  • Page 6: 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 7 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 8: Introduction

    The transducers are implemented in a K- shape conguration. The K1 enclosure is based on a 3-way active design with 2 LF sections, 1 MF section and 1 HF section, each one at the nominal impedance of 8 ohms. The K1 enclosure is made of rst grade Baltic birch plywood to ensure maximum acoustical and mechanical integrity.

  • Page 9: How To Use This Manual

    Introduction How to use this manual The K1 owner's manual is intended for all actors involved in the system design, implementation, preventive and corrective maintenance of the K1 system. It must be used as follows: 1. Read the technical description for an overview of all system elements, their features, and their compatibilities.

  • Page 10: System Components

    KARA-DOWNK1 Flying bumper for rigging KARA (II) under K1 or K1-SB K1-LASERMOUNT K1 laser support plate (compatible TEQSAS / SSE Prosight / Align Array / KSG) K2-LINK Rigging accessory for rear attachment of K2 below K1 K1 owner's manual (EN) version 1.0...

  • Page 11: System Component Illustrations

    System components Transportation accessories K-BUMPFLIGHT Modular ight case for 2 K1-BUMP or 2 K2-BUMP K1-CHARIOT Chariot for 4 × K1 or 4 × K1-SB K1-CHARIOTCOV Protective cover for 4 × K1/K1-SB on CHARIOT K1-PLA Removable front dolly for K1 or K1-SB enclosure...
  • Page 12 System components Rigging accessories K1-BUMP K1-DELTA KARA-DOWNK1 K1-LASERMOUNT K2-LINK Software applications Soundvision LA Network Manager Transportation K-BUMPFLIGHT K1-CHARIOT K1-CHARIOTCOV K1 owner's manual (EN) version 1.0...
  • Page 13 System components K1-PLA K1-COV K1-SBCOV K1 owner's manual (EN) version 1.0...

  • Page 14: Electro-Acoustical Description

    Electro-acoustical description Electro-acoustical description Directivity Horizontal Dispersion angle diagram of a K1 array, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB. K1 owner's manual (EN) version 1.0...

  • Page 15: Preset Description

    Electro-acoustical description Preset description [K1] [K2 70] [K2 90] [K2 110] loudspeaker elements outputs channels routing gain delay polarity mute left LF OUT 1 right LF OUT 2 IN A 0 dB 0 ms OUT 3 OUT 4 [KARAIIDOWNK1] [KARAIIDOWNK1 70] [KARAIIDOWNK1 90]...

  • Page 16: Connectors

    Electro-acoustical description Connectors LINK 2 x 8-point PA-COM LINK 2 x 8-point PA-COM Internal pinout for L-Acoustics 3-way active enclosures PA-COM points Transducer connectors left LF right LF K1 owner's manual (EN) version 1.0...
  • Page 17 Transducer connectors LF + LF - Not linked Not linked Ω Kara II 2 x 4-point speakON Internal pinout for L-Acoustics 2-way active enclosures SpeakON points Transducer connectors LF + LF - HF + HF - K1 owner's manual (EN) version 1.0...

  • Page 18: Rigging System Description

    Rigging system description K1/K1-SB On both sides, K1/K1-SB integrates two arms to connect another element of the rigging system, such as an enclosure or to a ying frame: • At the front, a sliding arm enables the inter-element angle setting and the inter-element front connection.
  • Page 19 Rigging system description Two ergonomic handles on each side of K1 are available for handling. K1-SB K1/K1-SB features two ground runners for enclosure protection. Two tracks on the top of the enclosure t the ground runners in stacking deployment. K1-SB K1-SB K1 owner's manual (EN) version 1.0...

  • Page 20: Rigging Elements

    Rigging elements K1-BUMP K1-BUMP is a rigging frame designed for ying K1/K1-SB enclosure arrays. It features a central rigging bar with four Ø 22 mm shackles to secure security slings, K1-BPCHAIN and K1-DELTA. K1-BUMP also features a support plate to accommodate a laser inclinometer. See K1-BUMP (p.146).
  • Page 21 Rigging system description The central bar of K1-BUMP has two holes each for site angle adjustments. Adjust the central bar position for a front side or a rear overhang of the enclosure array. Front overhang Rear overhang The array site angle depends on the relative heights between the K1-BUMP’s front and rear hang points (motor chain lengths) and central bar conguration (front or rear overhang).
  • Page 22 K1-BPCHAIN is an adjustable extension chain compatible with K1-BUMP or K2-BUMP. K1-BPCHAIN has a WLL (Working Load Limit) of 3.15 t and is necessary for climbing-hoist setup. It allows to prevent the chain bag from lying in front of the enclosures located on top of the array.

  • Page 23: K1-Delta

    0° - 10° K1-LASERMOUNT K1-LASERMOUNT is a support plate for mounting a laser inclinometer to the side of a K1 or K1-SB enclosure. K1-LASERMOUNT is installed at the rear of the enclosure, on the right side. Refer to Installing a laser inclinometer (p.145).

  • Page 24: Kara-Downk1

    K2-LINK is designed as an interface between the K1 and K2 rigging systems. K2-LINK is used to hang K2 under K1, K1-SB, or K1-BUMP. Three holes at the top provide three angle settings between the top K2 enclosure and the bottom K1 element: 0.25°, 2.5°, and 5°.

  • Page 25: Transportation

    Transportation K-BUMPFLIGHT K-BUMPFLIGHT is a modular ight-case used to transport the accessories of the K1 system. It is designed to hook and lift K1-BUMP directly from the ight-case without any physical handling. K-BUMPFLIGHT allows to transport up to two K1-BUMP and additional accessories in the removable tray: 1.

  • Page 26: K1-Chariot

    Rigging system description K1-CHARIOT K1-CHARIOT is a chariot designed for the transportation and storage of blocks of up to four K1 or K1-SB. Do not move or transport more than four K1 or K1-SB on K1-CHARIOT. K1-CHARIOT is intended for use only with L-Acoustics K1 and K1-SB Use with other equipment may result in instability causing injury.

  • Page 27: K1-Pla

    Rigging system description K1-PLA K1-PLA is a dolly board that can be secured to the front of a K1 or K1-SB with two ball-locking pins. K1-PLA is intended for use only with L-Acoustics K1 or K1-SB. Use with other equipment may result in instability causing injury.

  • Page 28: K1-Chariotcov

    Rigging system description K1-CHARIOTCOV K1-CHARIOTCOV is a protective cover for a stack of four K1 or K1-SB enclosures. A zipper at the rear provides access to the connector plate of each enclosure. K1-COV/K1-SBCOV K1-COV and K1-SBCOV are protective covers for one K1 or K1-SB enclosure on K1-PLA.

  • Page 29: Mechanical Safety

    Always refer to Soundvision for the safety factor of a mixed array. When ying a K1 array with a Kara II downll, the mechanical safety of all system elements must be considered. The indicated maximum limit applies to the K1 only.
  • Page 30 Soundvision calculations are based on usual environmental conditions. A higher safety factor is recommended with factors such as extreme high or low temperatures, strong wind, prolonged exposition to salt water, etc. Always consult a rigging specialist to adopt safety practices adapted to such a situation. K1 owner's manual (EN) version 1.0...

  • Page 31: Loudspeaker ConGurations

    • K1/K1-SB line source: enhanced LF throw By providing the K1-SB with the same frequency response as the K1 low section, the [K1SB_X] preset allows the K1-SB enclosure to be used as an LF line source element, increasing the length of the sub-low line source.
  • Page 32 2 K1 : 1 K1-SB Minimum line length 8 K1 + 4 K1-SB When using [K1] with [K1SB_X], do not add any delay value between the K1 and K1-SB elements of a same line source. K1 owner's manual (EN) version 1.0...

  • Page 33: K1-Sb Applications

    There are two distinct applications for K1-SB in a K1 system: • As an LF extension in a line source for enhanced throw, using the [K1SB_X] preset with K1. • As a subwoofer for increased impact, using the [K1SB_60] preset.

  • Page 34: Additional Subwoofer System

    Loudspeaker congurations Additional subwoofer system A K1 line source or a K1/K1-SB line source can be deployed with additional subwoofer enclosures to provide increased sub-low resources to demanding applications. Two subwoofer systems are available: • K1-SB for increased impact • KS28 for infra extension The recommended ratio is one K1 for one subwoofer, whether using K1-SB subwoofers only, KS28 subwoofers only, or a combination of both.

  • Page 35: K1-Sb

    Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. When using [K1] with [K1SB_X], do not add any delay value between the K1 and K1-SB elements of a same line source. Pre-alignment delays...
  • Page 36 Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. When using [K1] with [K1SB_X], do not add any delay value between the K1 and K1-SB elements of a same line source. Pre-alignment delays...

  • Page 37: Ks28

    Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. When using [K1] with [K1SB_X], do not add any delay value between the K1 and K1-SB elements of a same line source. K1 owner's manual (EN) version 1.0...
  • Page 38 [K1] + [K1SB_X] + [KS28_60_C] K1 = 5.5 ms K1-SB = 5.5 ms KS28 = 0 ms [K1] + [K1SB_X] + [KS28_60_Cx] K1 = 3.5 ms K1-SB = 3.5 ms KS28 = 0 ms K1 owner's manual (EN) version 1.0...

  • Page 39: Additional DownLl Element

    Kara II The [KARAIIDOWNK1], [KARAIIDOWNK1 70] and [KARAIIDOWNK1 90] presets feature a high-pass lter at 55 Hz for the low section, along with specic delay settings, in order to optimize the acoustic coupling between the Kara II and K1 line sources.
  • Page 40 Loudspeaker congurations Do not add any delay between the K1 and Kara II elements of a mixed line source. When using [K1] with [K1SB_X], do not add any delay value between the K1 and K1-SB elements of a same line source.
  • Page 41 Frequency range (-10 dB) 35 Hz - 20 kHz Do not add any delay between the K1 and K2 elements of a mixed line source. When using [K1] with [K1SB_X], do not add any delay value between the K1 and K1-SB elements of a same line source.

  • Page 42: Inspection And Preventive Maintenance

    (p.44) to identify critical parts of the system and apply the specic checks described in the Inspection references (p.50). Do the Rigging check (p.53). If any parts are damaged, contact your L-Acoustics representative for further instructions. Acoustics Perform the Enclosure check (p.59). Perform the Listening test (p.61) to detect any degradation in sound quality.

  • Page 43: Rigging Part Inspection

    • rigging elements integrated in the product such as rigging arms and rails • transportation accessories This inspection procedure covers only L-Acoustics products. To inspect other products that are part of the lifting chain, refer to the manufacturer's instructions. Prerequisite Perform the inspection in a well-lit environment.

  • Page 44: Mechanical System Overview

    If a screw is loose, remove and replace it. Always use the new screws provided in the repair kit. If no new screw is available, add blue threadlocker before reusing the screw. Do not apply more than the indicated torque. K1 owner's manual (EN) version 1.0...

  • Page 45: K1 Mixed Array With K1-Bump And K1-Sb

    Inspection and preventive maintenance K1 mixed array with K1-BUMP and K1-SB Refer to Inspection references (p.50). Shackles (p.50) Ball-locking pins (p.50) Ball-locking pins (p.50) • Rear rigging arms rotate correctly • Front rigging arms slide correctly Ball-locking pins (p.50) Rigging check (p.53)

  • Page 46: K1 Array With K1-Bump, Kara-Downk1 And Kara Ii

    Inspection and preventive maintenance K1 array with K1-BUMP, KARA-DOWNK1 and Kara II Refer to Inspection references (p.50). Shackles (p.50) Ball-locking pins (p.50) Ball-locking pins (p.50) Rigging check (p.53) Ball-locking pins (p.50) Grill safety (p.52) Ball-locking pins (p.50) Ball-locking pins (p.50) Refer to the Kara II owner's manual for more information.

  • Page 47: K1 Array With K1-Chariot

    Inspection and preventive maintenance K1 array with K1-CHARIOT Refer to Inspection references (p.50). Rigging check (p.53) Ball-locking pins (p.50) Grill safety (p.52) Rigging check (p.53) K1 owner's manual (EN) version 1.0...

  • Page 48: K1 Array With K1-Bump And La-Rak Ii Avb

    Inspection and preventive maintenance K1 array with K1-BUMP and LA-RAK II AVB Refer to Inspection references (p.50). Refer to the LA-RAK II AVB owner's manual for more information. Shackles (p.50) Ball-locking pins (p.50) Ball-locking pins (p.50) Rigging check (p.53) Ball-locking pins (p.50)

  • Page 49: K2 Mixed Array With K1-Bump, K1-Sb, And K2-Link

    Inspection and preventive maintenance K2 mixed array with K1-BUMP, K1-SB, and K2-LINK Refer to Inspection references (p.50). Shackles (p.50) Ball-locking pins (p.50) Ball-locking pins (p.50) • Rear rigging arms rotate correctly • Front rigging arms slide correctly Ball-locking pins (p.50) Ball-locking pins (p.50)

  • Page 50: Inspection References

    Drive the shackle axis in its lodging. Make sure that the end is ush with the shackle. Related tasks Rigging part inspection (p.43) Ball-locking pins Reference pictures tether (K1-BUMP) tether (K1-BUMP rigging bar) tether (K1) tether (K1-SB) K1 owner's manual (EN) version 1.0...
  • Page 51 The pin must remain inside the hole. If the pin is inserted in two plates, the ball must pass through both plates and lock the pin in place. If the check fails, immediately withdraw the product from use and contact L-Acoustics. Related tasks Rigging part inspection (p.43)

  • Page 52: Grill Safety

    Pull on the O-rings: • Make sure they do not break. • Make sure they are not loose. D/R - Grill (p.110) to replace them. If the O-rings are damaged or missing, refer to the K1 owner's manual (EN) version 1.0...

  • Page 53: Rigging Check

    Inspection and preventive maintenance Rigging check Procedure 1. Position a K1 on K1-CHARIOT. 2. Position one K1 on the rst one. K1 owner's manual (EN) version 1.0...
  • Page 54 Inspection and preventive maintenance 3. Secure the front rigging arms using the top enclosure pins. The front rigging arms can be deployed with some resistance, and slide correctly. K1 owner's manual (EN) version 1.0...
  • Page 55 Inspection and preventive maintenance 4. Secure the rear rigging arms using the top enclosure pins. The rear rigging arms can be deployed with some resistance, and rotate correctly. K1 owner's manual (EN) version 1.0...
  • Page 56 If the angle locking button is pressed, pull to disengage the latch. When the automatic locking system is deactivated, a yellow sticker is visible on the latch. 6. Secure the front rigging arms at one of the inter-enclosure holes. K1 owner's manual (EN) version 1.0...
  • Page 57 SHLAK! 8. Hold and lift the array to lock the inter-enclosure angles. • The two enclosures remain attached. • The automatic locking system button locks and the latches engage (no yellow label visible). SHLAK! K1 owner's manual (EN) version 1.0...
  • Page 58 Inspection and preventive maintenance 9. Disassemble the two enclosures. Risk of trapping ngers When disassembling the enclosures, hold the top one by the handles. 10. Repeat the procedure with the other enclosures. K1 owner's manual (EN) version 1.0...

  • Page 59: Acoustical Check

    6. Press the OK key or the encoder wheel to launch the ENCLOSURE CHECK. The amplied controller generates short sinusoidal signals simultaneously for each connected output. The amplied controller displays the results for each output. K1 owner's manual (EN) version 1.0...
  • Page 60 • a percentage of variation from the expected range (found in NOK and UNDEF results) • the number of operational transducers out of the total Low variations from the expected range are acceptable: displayed percentage can be different from 0 and all transducers considered operational. K1 owner's manual (EN) version 1.0...
  • Page 61 4. Carefully clean the speaker with a dry cloth. 5. Perform the reassembly procedure. Replace the speaker gasket and the screws. Apply the recommended torque. 6. Repeat the listening test. If the problem persists, replace the speaker. K1 owner's manual (EN) version 1.0...
  • Page 62 3. Clean the air gap thoroughly. Use double-face adhesive tape to remove any particles. 4. Perform the diaphragm reassembly procedure. Apply the recommended torque. 5. Repeat the listening test. If the problem persists, replace the driver. K1 owner's manual (EN) version 1.0...

  • Page 63: Rigging Procedures

    Systematically ensure that each ball-locking pin is fully inserted by pulling on it. To avoid any physical handling, K1-BUMP must be transported and prepared in K-BUMPFLIGHT. An identication sticker is present at the front of K1-BUMP to identify the front and the rear sides. Procedure 1.
  • Page 64 Rigging procedures 2. On each side of the K1-BUMP rigging bar, remove the storage ball-locking pin. Secure the storage ball-locking pin in the rigging bar. 3. Remove the two rigging ball-locking pins. K1 owner's manual (EN) version 1.0...
  • Page 65 Rigging procedures 4. Put the K1-BUMP rigging bar in rigging position: a) Lift the K1-BUMP rigging bar using the motor. b) Rotate K-BUMPFLIGHT and align K1-BUMP rigging frame holes with the rigging bar holes. K1 owner's manual (EN) version 1.0...
  • Page 66 Rigging procedures c) Lower and position the K1-BUMP rigging bar on K1-BUMP rigging frame. 5. Secure the K1-BUMP rigging bar using the two rigging ball-locking pins. K1 owner's manual (EN) version 1.0...
  • Page 67 Rigging procedures 6. Optional: • Secure K1-BPCHAIN to the front external shackle. • Secure K1-DELTA to the rear external shackle. 7. Lift K1-BUMP using the motor. K1 owner's manual (EN) version 1.0...

  • Page 68: Securing La-Rak Ii Avb On K1-Bump

    Turn the spring-loaded safety mechanisms to release the bars and slide them out. Make sure the spring-loaded safety is intact. 2. Position LA-RAK II AVB on K1-BUMP. LA-RAK II AVB must be installed with the front panel oriented towards the K1-BUMP laser slits. K1 owner's manual (EN) version 1.0...
  • Page 69 (p.69) to secure up to four LA-RAK II AVB on K1-BUMP. Risk of falling If two racks are used, each one must be placed directly onto K1-BUMP. If four racks are used, they must be arranged in two dual-rack columns.
  • Page 70 Rigging procedures 5. Slide the rack stabilizer along the top LA-RAK II AVB rails until it locks. If necessary, unscrew the rack stabilizer safety screw. 6. Screw in the rack stabilizer safety screw. K1 owner's manual (EN) version 1.0...
  • Page 71 Rigging procedures 7. Secure the motor hooks to the external shackles of the K1-BUMP rigging bar. If two or four LA-RAK II AVB are installed, place the front motor chain into the groove of the rack stabilizer. If one or three LA-RAK II AVB are installed, place the front motor chain on the external side of the rack stabilizer to prevent K1-BUMP from tilting during enclosure rigging.

  • Page 72: Preparing A Block Of Four K1/K1-Sb

    K1-CHARIOT All along the procedure: Systematically ensure that each ball-locking pin is fully inserted by pulling on it. Follow the same procedure to prepare a block of four K1-SB enclosures. Procedure 1. Position a rst K1 on K1-CHARIOT. There is no front nor rear side on K1-CHARIOT.
  • Page 73 Rigging procedures 3. Position another K1 on the rst one. 4. On each side of the bottom enclosure, secure the front rigging arm to the top enclosure: a) Slide the front rigging arm. b) Secure the front rigging arm using the ball-locking pin of the top enclosure.
  • Page 74 Secure the rear rigging arm using the ball-locking pin of the top enclosure. 6. Repeat steps (p.73) to (p.74) until the block of four K1 is complete. 7. On each side of the top enclosure, set the angle at 0° using the top ball-locking pin. K1 owner's manual (EN) version 1.0...

  • Page 75: Presetting The Inter-Enclosure Angles Of K1/K1-Sb

    Presetting the inter-enclosure angles of K1/K1-SB All along the procedure: Systematically ensure that each ball-locking pin is fully inserted by pulling on it. Follow the same procedure to preset the inter-enclosure angles of K1-SB enclosures. Procedure 1. Make sure the automatic locking system is deactivated.
  • Page 76 4. On each side of the top enclosure, press the angle locking button to lock the inter-enclosure angle. The latch slightly retracts when the button is pushed (yellow label visible). SHLAK! 5. Repeat the procedure for each inter-enclosure angle of the array. K1 owner's manual (EN) version 1.0...

  • Page 77: Flying K1

    Presetting the inter-enclosure angles of K1/K1-SB (p.75). Procedure 1. Lift K1-BUMP to more than 2 m / 6.5 ft height using the motor. 2. Position a block of four K1/K1-SB under K1-BUMP. 3. Secure K1-BUMP on top of the array: a) On each side of the K1-BUMP rigging frame, remove the four ball-locking pins.
  • Page 78 Rigging procedures b) Lower K1-BUMP to facilitate the connection between the enclosures and the rigging frame. c) On each side of the top enclosure, secure the front rigging arm using the K1-BUMP ball-locking pin. K1 owner's manual (EN) version 1.0...
  • Page 79 Rigging procedures d) On each side of the top enclosure, rotate the rear rigging arm and secure it using the K1-BUMP ball-locking pin. 4. Before raising the array, check that all ball-locking pins and rigging arms are properly secured. Check that all ball-locking pins are fully inserted in rigging position.
  • Page 80 The automatic system engages and the latches retract (except on the bottom enclosure). Check that the automatic locking system is activated. When the automatic locking system is activated, no yellow sticker is visible on the latches. SHLAK! SHLAK! SHLAK! K1 owner's manual (EN) version 1.0...
  • Page 81 Rigging procedures 6. Remove K1-CHARIOT from the array: a) Hold K1-CHARIOT and remove the two front ball-locking pins. Put them into their storage locations. b) Hold K1-CHARIOT and remove the two rear ball-locking pins. Put them into their storage locations.

  • Page 82: Attaching A Block Of Four K1 Under A K1 Array

    Rigging procedures Attaching a block of four K1 under a K1 array Min number of operators Rigging accessories 2 Ø 22 mm shackles WLL 3.25 t (provided) K1-BUMP All along the procedure: Systematically ensure that each ball-locking pin is fully inserted by pulling on it.
  • Page 83 3. Press the angle locking buttons to lock the inter-enclosure angles. The latches slightly retract when the buttons are pushed (yellow label visible). 4. Raise the array until the K1-CHARIOT wheels are off the ground. The latches engage and no yellow sticker is visible, except on the bottom enclosure.
  • Page 84 Two on both sides of the array, grabbing the handles of the bottom enclosure. Stop lowering the array when both rear corners are in contact. This operation avoids putting too much stress on the K1-CHARIOT wheels. K1 owner's manual (EN) version 1.0...
  • Page 85 8. Remove K1-CHARIOT from the array: a) Hold K1-CHARIOT and remove the two front ball-locking pins. Put them back into their storage locations. b) Hold K1-CHARIOT and remove the two rear ball-locking pins. Put them back into their storage locations.

  • Page 86: Attaching A Block Of Four K2 Under A K1/K1-Sb Array

    K2 arrays can be own with K1-BUMP or K2-BUMP. Refer to the K2 owner's manual for the procedure with K2-BUMP. Follow the same procedure to attach a block of four K2 under a K1-SB array. Prerequisite • Prepare a block of four K1. Refer to Preparing a block of four K1/K1-SB (p.72).
  • Page 87 Rigging procedures 2. On each side, secure the front rigging arm: a) Rotate the front rigging arm to align its hole with the K1/K1-SB rigging hole. b) Secure the front rigging arm using the ball-locking pin c) Lower the own array and secure the assembly using the ball-locking pin.
  • Page 88 The automatic system engages and the latches retract (except on the bottom enclosure). Check that the automatic locking system is activated. When the automatic locking system is activated, no yellow sticker is visible on the latches. SHLAK! SHLAK! SHLAK! K1 owner's manual (EN) version 1.0...
  • Page 89 5. Turn the front wheels inside K2-CHARIOT. 6. Connect the rear of the K1/K1-SB array to the rear of the K2 array with the K2-LINK interfaces: a) On each side, attach a K2-LINK at the back of the K1/K1-SB enclosure.
  • Page 90 Rigging procedures b) Pull back the bottom enclosures while lowering the array until only the front wheels touch the ground. K1 owner's manual (EN) version 1.0...
  • Page 91 7. Lower the array until the hole of K2-LINK matches the K2 rigging middle hole. Risk of pinching Do not touch K2-LINK while lowering the array. 8. Secure K2-LINK on the K2 rigging middle hole. 9. Raise the array until the K2-CHARIOT wheels are off the ground. K1 owner's manual (EN) version 1.0...
  • Page 92 Hold K2-CHARIOT and remove the two rear ball-locking pins. Put them back into their storage locations . b) Hold K2-CHARIOT and remove the two front ball-locking pins. Put them back into their storage locations . K1 owner's manual (EN) version 1.0...

  • Page 93: Rigging A Kara Ii DownLl Array Under A K1 Array With Kara-Downk1

    Rigging procedures Rigging a Kara II downll array under a K1 array with KARA-DOWNK1 Min number of operators Rigging accessories KARA-DOWNK1 Prerequisite • Prepare and raise a K1 array. Refer to Flying K1 (p.77). • Prepare an array of three Kara II with 0° inter-enclosure angles.
  • Page 94 Secure the four Kara II rigging arms inside the slits using the ball-locking pins. 4. Lower the K1 array as close as possible to the assembly without resting on it. 5. Disconnect the rear ball-locking pins between the two top Kara II enclosures and place them in storage position.
  • Page 95 Rigging procedures 6. Connect KARA-DOWNK1 to the bottom of the K1 array: a) Rotate the top Kara II upwards and secure the rear KARA-DOWNK1 tabs to the K1 rigging. b) Secure the front KARA-DOWNK1 tabs to the K1 rigging. If necessary, slightly lower the K1 array.
  • Page 96 Use the handles of bottom Kara II. 7. Raise the array. 8. Set the inter-enclosure angles. 9. Repeat steps (p.93) to (p.96) the Kara II array is complete. Refer to the Kara II owner's manual. K1 owner's manual (EN) version 1.0...

  • Page 97: Flying A K1 Array With K1-Bump Using The Caterpillar Method

    (p.68). Procedure 1. Line up K1-BUMP and all enclosures with dolly boards at the rigging location. 2. Raise K1-BUMP in front of the rst enclosure to more than 0.7 m / 2.3 ft height. K1 owner's manual (EN) version 1.0...
  • Page 98 5. On both sides of each enclosure, preset the inter-enclosure angles. Slide out the angle arm to the desired angle hole and insert the ball-locking pin. Select the 0° angle for the top enclosure to be aligned with with the K1-BUMP site angle. K1 owner's manual (EN) version 1.0...
  • Page 99 Rigging procedures 6. On the top enclosure, lift out both rear arms. Secure them to the K1-BUMP rear rigging points using the K1-BUMP ball-locking pins. 7. On both sides of each K1-PLA, pull on the lanyards to remove the ball-locking pins.
  • Page 100 Rigging procedures 9. Lift the front of the top enclosure and secure the two front rigging arms to K1-BUMP using K1-BUMP ball-locking pins. Two people are needed for this operation: one on each side of the enclosure. 10. Raise the array until the second enclosure is own.
  • Page 101 What to do next Add a Kara II downll array. Refer to Rigging a Kara II downll array under a K1 array with KARA-DOWNK1 (p.93). K1 owner's manual (EN) version 1.0...
  • Page 102 Removing a K1 array using the CATERPILLAR method The following procedure describes how to use the CATERPILLAR method to remove an array of K1/K1-SB. The CATERPILLAR disassembly method consists in landing each enclosure on a K1-PLA dolly board for individual shipping.
  • Page 103 The rear rigging points must remain attached to prevent the bottom enclosure from falling. c) Pull back the bottom enclosure while lowering the array until the four K1-PLA wheels touch the ground. Two people are needed for this operation: one on each side of the enclosure.
  • Page 104 8. On all other enclosures, remove the rear ball-locking pins. Pull back the rear rigging arms into their storage locations. 9. If necessary, lower K1-BUMP until it touches the ground and remove the LA-RAK II AVB touring racks. 10. Place K1-BUMP in K-BUMPFLIGHT using the motor.

  • Page 105: Connection To La AmpliEd Controllers

    1 / 4 3 / 3 Kara II 3 / 6 Cabling scheme for K1 or K2 Refer to the cabling schemes to connect the enclosures to different types of output congurations. Four-channel CA-COM output Cabling schemes for K1-SB Two-channel speakON output...
  • Page 106 Connection to LA amplied controllers Cabling scheme for Kara II Four-channel CA-COM output 2W CH(A) 2W CH(B) 2WAY SUB1 SUB2 Two-channel speakON output 1+/1- 2+/2- K1 owner's manual (EN) version 1.0...

  • Page 107: Corrective Maintenance

    1510 Protector case that features three pre-cut layers of foam to safely t the ® ® tools. The Maintenance Toolcase includes tools manufactured by FACOM , Fluke , Tohnichi, ABUS, and Würth. All third-party trademarks, registered trademarks, or product names are the property of their respective owners. K1 owner's manual (EN) version 1.0...

  • Page 108: Introduction

    (p.119) • D/R - HF diaphragm (p.120) For advanced maintenance, contact your L-Acoustics representative. K1 Exploded views In order to operate, follow the order outlined here. Each assembly refers to the corresponding Disassembly/Reassembly (D/R) procedure and the necessary repair kit.
  • Page 109 Corrective maintenance Fins MF speaker KR HPPH62 Grill KR SECUGRL HF Diaphragm KR HSBC33 Connector plate HF driver KR HPBC33 K1 owner's manual (EN) version 1.0...

  • Page 110: Disassembly And Reassembly Procedures

    Prerequisite The enclosure is placed on its rear. For safety reasons, always use the new screws and spare parts provided in the KR. If no new screws are available, use blue threadlocker. K1 owner's manual (EN) version 1.0...
  • Page 111 1. Pull down the safety O-ring. Use the provided tool or a at tool. 2. Loosen the grill screw and remove the O-ring securing the grill. Use the 4 mm hex bit. 3. Remove the grill from the enclosure. K1 owner's manual (EN) version 1.0...
  • Page 112 Corrective maintenance 4. Remove the support of the grill. K1 owner's manual (EN) version 1.0...
  • Page 113 1. Secure the support of the grill to the cabinet. Add the O-ring, position the support of the grill, and tighten the screws. 2. Position the grill in the enclosure. Start with the top. K1 owner's manual (EN) version 1.0...
  • Page 114 Use the provided tool or a at tool. 4. Secure the grill with the O-ring and the screw. Use the 4 mm hex bit and set the torque to 3 N.m. 3 N.m 4 mm K1 owner's manual (EN) version 1.0...
  • Page 115 For safety reasons, always use the new screws and spare parts provided in the KR. If no new screws are available, use blue threadlocker. Gradually tighten the screws following a star pattern. 5 N.m 5 mm What to do next Perform the Acoustical check (p.59) procedures. K1 owner's manual (EN) version 1.0...
  • Page 116 Corrective maintenance D/R - Fins Tools • torque screwdriver • T20 Torx bit Prerequisite Grill removed. D/R - Grill (p.110). Exploded view Save the screws and fasteners for reassembly. 3 N.m K1 owner's manual (EN) version 1.0...
  • Page 117 For safety reasons, always use the new screws and spare parts provided in the KR. Gradually tighten the screws following a star pattern. 5 N.m 5 N.m 4 mm 4 mm What to do next Perform the Acoustical check (p.59) procedures. K1 owner's manual (EN) version 1.0...
  • Page 118 For safety reasons, always use the new screws and spare parts provided in the KR. If no new screws are available, use blue threadlocker. If the gasket is damaged, remove and replace it. 3 N.m K1 owner's manual (EN) version 1.0...
  • Page 119 For safety reasons, always use the new screws and spare parts provided in the KR. If no new screws are available, use blue threadlocker. If the gasket is damaged, remove and replace it. 5 N.m 5 mm What to do next Perform the Acoustical check (p.59) procedures. K1 owner's manual (EN) version 1.0...
  • Page 120 Connector plate removed. D/R - Connector plate (p.118). HF driver removed. D/R - HF driver (p.119) Exploded view Use a blower or double face adhesive tape to clean the dome and the air gap. K1 owner's manual (EN) version 1.0...

  • Page 121: K1-Sb

    (p.123) • D/R - LF speaker (p.124) For advanced maintenance, contact your L-Acoustics representative. Exploded views In order to operate, follow the order outlined here. Each assembly refers to the corresponding Disassembly/Reassembly (D/R) procedure and the necessary repair kit. Using the KR HSPH154 reconing kit Follow the instructions to remove the LF speaker from the enclosure.
  • Page 122 Corrective maintenance Rigging pins KR PIN163 Side rigging K1 owner's manual (EN) version 1.0...

  • Page 123: Disassembly And Reassembly Procedures

    The enclosure is placed on its top. Exploded view For safety reasons, always use the new screws and spare parts provided in the KR. If no new screws are available, use blue threadlocker. 3 N.m 4 mm K1 owner's manual (EN) version 1.0...
  • Page 124 For safety reasons, always use the new screws and spare parts provided in the KR. If no new screws are available, use blue threadlocker. Gradually tighten the screws following a star pattern. 5 N.m 5 mm K1 owner's manual (EN) version 1.0...

  • Page 125: SpeciCations

    Description ® 3-way full-range active WST enclosure, quad-amplied by LA12X Usable bandwidth (-10 dB) 35 Hz - 20 kHz ([K1]) Maximum SPL 149 dB ([K1]) Nominal directivity (-6 dB) horizontal: 90° symmetric vertical: dependent upon the number of elements and the line source curvature Transducers LF: 2 ×...

  • Page 126: K2 SpeciCations

    Finish dark grey brown Pantone 426 C IP55 Peak level measured at 1 m under free eld conditions using pink noise with crest factor 4 (preset specied in brackets). K1 owner's manual (EN) version 1.0...
  • Page 127 Specications K2 dimensions 400 mm / 15.8 in 354 mm / 13.9 in 1338 mm / 52.7 in K1 owner's manual (EN) version 1.0...

  • Page 128: K1-Sb SpeciCations

    Specications K1-SB specications Description K1 system subwoofer 2×15", amplied by LA12X Low frequency limit (-10 dB) 30 Hz ([K1SB_60]) Maximum SPL 145 dB ([K1SB_X]) Transducers 2 × 15" cone drivers Acoustical load bass-reex, L-Vents Nominal impedance 4 Ω Connectors IN: 1 × 4-point speakON...
  • Page 129 Specications K1-SB dimensions 520 mm / 20.5 in 438 mm / 17.1 in 505 mm / 19.9 in 1342 mm / 52.8 in K1 owner's manual (EN) version 1.0...

  • Page 130: Kara Ii

    Finish dark grey brown Pantone 426 C IP55 Peak level measured at 1 m under free eld conditions using pink noise with crest factor 4 (preset specied in brackets). K1 owner's manual (EN) version 1.0...
  • Page 131 Specications Kara II dimensions 733 mm / 28.9 in 252 mm / 9.9 in 482 mm / 19 in K1 owner's manual (EN) version 1.0...

  • Page 132: Ks28

    3D fabric Rigging components high grade steel Finish dark grey brown Pantone 426 C IP55 Peak level at 1 m under half space conditions using pink noise with crest factor 4 (preset specied in brackets). K1 owner's manual (EN) version 1.0...
  • Page 133 Specications KS28 dimensions 702 mm / 27.6 in 1340 mm / 52.8 in 1351 mm / 53.2 in K1 owner's manual (EN) version 1.0...

  • Page 134: K1-Bpchain

    Specications K1-BPCHAIN specications Description Adjustable sling for K1-BUMP or K2-BUMP Weight (net) 6.3 kg / 13.9 lb Material high grade steel with anti-corrosion coating K1-BPCHAIN dimensions 132 mm / 5.2 in 30 mm / 1.2 in 1370 mm / 53.9 in 110 mm / 4.3 in...

  • Page 135: K1-Bump

    Specications K1-BUMP specications Description Structure for ying and stacking K1 and K1-SB arrays Weight (net) 98 kg / 216 lb Material high grade steel with anti-corrosion coating K1-BUMP dimensions 1327 mm / 52.2 in K1 owner's manual (EN) version 1.0...

  • Page 136: K1-Chariot2

    Specications K1-CHARIOT specications Description Chariot for 4 × K1 or 4 × K1-SB Weight (net) 47 kg / 103 lb Material high grade steel with anti-corrosion coating K1-CHARIOT dimensions 1450 mm / 57.1 in 610 mm / 24 in K1 owner's manual (EN) version 1.0...

  • Page 137: K1-Delta SpeciCations

    Specications K1-DELTA specications Description Rigging accessory for rear attachment of 2 motors to K1-BUMP Weight (net) 9.5 kg / 21 lb Material high grade steel with anti-corrosion coating K1-DELTA dimensions 606 mm / 23.8 in 48 mm / 1.9 in...

  • Page 138: K1-Lasermount SpeciCations

    Specications K1-LASERMOUNT specications Description K1 laser support plate (compatible TEQSAS / SSE Prosight / Align Array / KSG) Weight (net) 0.8 kg / 1.8 lb Material high grade steel with anti-corrosion coating K1-LASERMOUNT dimensions K1 owner's manual (EN) version 1.0...

  • Page 139: K1-Pla

    Specications K1-PLA Description Removable front dolly for K1 or K1-SB enclosure Weight (net) 7.5 kg / 16.5 lb Material high grade steel with anti-corrosion coating K1-PLA dimensions 1342 mm / 52.8 in 434 mm / 17.1 in K1 owner's manual (EN) version 1.0...

  • Page 140: Kara-Downk1 SpeciCations

    Specications KARA-DOWNK1 specications Description Flying bumper for rigging KARA (II) under K1 or K1-SB Weight (net) 21 kg / 46 lb Material high grade steel with anti-corrosion coating KARA-DOWNK1 dimensions 1330 mm / 52.4 in K1 owner's manual (EN) version 1.0...

  • Page 141: K2-Link SpeciCations

    Specications K2-LINK specications Description Rigging accessory for rear attachment of K2 below K1 Weight (net) 1.8 kg / 4 lb Material high grade steel with anti-corrosion coating K2-LINK dimensions 10 mm / 0.4 in 201 mm / 7.9 in K1 owner's manual (EN) version 1.0...

  • Page 142: K-Bumpflight SpeciCations

    Specications K-BUMPFLIGHT specications Description Modular ight case for 2 K1-BUMP or 2 K2-BUMP 12 pieces of adhesive foam Weight (net) 105 kg / 231.5 lb K-BUMPFLIGHT dimensions 1469 mm / 57.8 in 643 mm / 25.3 in K1 owner's manual (EN) version 1.0...

  • Page 143: Ks28-Outrig

    Stability bars for KS28 Weight (net) 9.4 kg / 20 lb Material high grade steel with anti-corrosion coating KS28-OUTRIG dimensions 1035 mm / 40.7 in 83 mm / 3.2 in 55 mm / 2.1 in K1 owner's manual (EN) version 1.0...

  • Page 144: Appendix: Recommendation For Speaker Cables

    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 loudspeakers connected. The calculation tool is available on our website: https://www.l-acoustics.com/installation-tools/ K1 owner's manual (EN) version 1.0...

  • Page 145: Appendix: Installing A Laser Inclinometer

    Installing a laser inclinometer Installing a laser inclinometer K1-LASERMOUNT K1-LASERMOUNT can be used to secure a laser inclinometer vertically or horizontally, using the L-Acoustics Tech Toolcase II accessories. Five sensor models can be used: ® • TEQSAS LAP-TEQ PLUS (L-Acoustics Tech Toolcase II accessory) ®...

  • Page 146: K1-Bump

    1. Remove the four M4 Torx screws (T20) from the plate. 2. Put thread-locker in the four threaded inserts. 3. Position the sensor so it points toward the front of the K1-BUMP. 4. Secure the sensor with the four screws.

  • Page 147: With Sse ® Prosight

    Installing a laser inclinometer ® With SSE Prosight SSE Prosight2 is a SSE product. Refer to the SSE Fitting guides for more information on how to mount SSE Prosight on a K Series bumper. K1 owner's manual (EN) version 1.0...
  • Page 148 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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