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

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Summary of Contents for L-Acoustics K Series

  • Page 1 owner's manual (EN)
  • Page 2 Document reference: K3 owner's manual (EN) version 1.0 Distribution date: October 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................................6 Introduction................................ 8 K3 long throw line source......................... 8 How to use this manual..........................9 System components............................10 Loudspeaker cables..........................11 Rigging elements.............................13 Electro-acoustical description..........................14 Directivity............................... 14 Adjustable ns..........................14 Directivity............................. 17 Preset description............................ 18 Connectors............................. 19 Rigging system description..........................21 K3.................................
  • Page 4 Mechanical safety.............................35 Loudspeaker congurations..........................37 Line source............................. 37 Line source with low-frequency element..................... 38 Additional downll element........................40 Kara / Kara II..........................40 Inspection and preventive maintenance....................... 41 How to do preventive maintenance......................41 Rigging part inspection........................... 42 Mechanical system overview........................42 K3 array with K3-BUMP and K3-BAR....................43 K3 array with K3-BUMP and KARADOWNK3.................
  • Page 5 Connection to LA amplied controllers........................ 99 Specications..............................101 APPENDIX: Recommendation for speaker cables....................119...

  • 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 Read the maintenance section of this document before servicing the product. Contact L-Acoustics for advanced maintenance. Any unauthorized maintenance operation will void the product warranty. Before sending a product to L-Acoustics for maintenance, save all user presets to les using LA Network Manager. K3 owner's manual (EN) version 1.0...

  • Page 8: Introduction

    K3 long throw line source Part of the K Series, K3 is a full range line source system designed for production applications beyond 35 m of throw. Housing the internationally recognized K2 system components into a medium-sized enclosure, K3 is ideal for applications that require reinforced low-frequency contour, broad bandwidth and limited footprint such as live events in mid-sized festivals, and tours, performing arts, corporate events in large exhibition halls or special events.

  • Page 9: How To Use This Manual

    • Connection to LA amplied controllers (p.99) 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 10: System Components

    System components System components Loudspeaker enclosures ® 2-way active WST enclosure: 2 x 12" LF + 4" HF diaphragm KS28 Flyable subwoofer 2 x 18'' KS21 High power compact subwoofer: 1x21'' ® Kara II 2-way active WST enclosure: 2 x 8" LF + 3" HF diaphragm Powering and driving system LA4X / LA8 / LA12X Amplied controller with DSP, preset library and networking capabilities...

  • Page 11: Loudspeaker Cables

    System components BPCHAIN 1.5T Extension sling 1.5 tons (included in K3-BUMP) LA-SLING2T Lifting chain (DIN EN 818-4) 2-leg , 8 mm DELTA 1.5T Azimuth angle tuning accessory 1.5T K2-JACK 4 tilt adjustment screw jacks + bar for K2-CHARIOT Transportation accessories K3-CHARIOT Chariot for up to 4 K3 K3-CHARIOTCOV...
  • Page 12 System components 3.5 m 3.5 m 2WAY 2W CH(A) SUB1 2W CH(B) SUB2 DOFILL-LA8 DO3WFILL K3 owner's manual (EN) version 1.0...

  • Page 13: Rigging Elements

    System components Rigging elements K3-BUMP K3-BAR K3-RIGBAR DELTA 1.5T BPCHAIN KARADOWNK3 1.5T LA-RAKMOUNT K3-TILT KS28-OUTRIG K2-JACK LA-SLING2T K3-CHARIOT K3-CHARIOTCOV K3-CHARIOTLID K3-BUMPFLIGHT K3 owner's manual (EN) version 1.0...

  • Page 14: Electro-Acoustical Description

    Electro-acoustical description Electro-acoustical description Directivity Adjustable ns The K3 enclosure features an adjustable horizontal directivity system. Using the adjustable ns, horizontal directivity can be adjusted with four different settings: 70° / 110° symmetric or 90° asymmetric. A specic K3 preset must be used for each directivity setting.
  • Page 15 Electro-acoustical description 90° settings K3 owner's manual (EN) version 1.0...
  • Page 16 Electro-acoustical description 110° setting Mixed settings K3 owner's manual (EN) version 1.0...

  • Page 17: Directivity

    Electro-acoustical description Directivity Horizontal -100 -120 -140 -160 -180 1 000 10 000 Frequency (Hz) Dispersion angle diagram of a K3 array with 70° ns setting, using lines of equal sound pressure at -3 dB, -6 dB, -12 dB. -100 -120 -140 -160...

  • Page 18: Preset Description

    Electro-acoustical description Preset description [K3 70] [K3 90] [K3 110] [KARAIIDOWNK3] [KARADOWNK3] loudspeaker elements outputs channels routing gain delay polarity mute OUT 1 IN A 0 dB 0 ms OUT 2 OUT 3 IN A 0 dB 0 ms OUT 4 [KS28_60] [KS28_100] [KS21_60] [KS21_100] outputs channels...

  • Page 19: Connectors

    Electro-acoustical description Connectors SpeakON connectors can be used interchangeably as IN or LINK connector. 2 × 4-point speakON Internal pinout for L-Acoustics 2-way active enclosures speakON points Transducer connectors LF + LF - HF + HF - KS28 Weight: 79 kg / 174 lb...
  • Page 20 Electro-acoustical description Internal pinout for L-Acoustics subwoofers speakON points Transducer connectors LF + LF - Not linked Not linked K3 owner's manual (EN) version 1.0...

  • Page 21: Rigging System Description

    Rigging system description Rigging system description On both sides, K3 integrates two arms to connect another element of the rigging system, such as an enclosure or a ying frame. • At the front, a rotating arm provides a xed point around which the enclosure can freely rotate until its connection at the rear.

  • Page 22: Ks28

    Rigging system description KS28 KS28 features three ergonomic handles on each side. KS28 features two ground runners for enclosure protection. Two tracks on the top of the enclosure t the ground runners in stacking deployment. KS28 features eight L-shaped side runners for side protection and upright stacking. K3 owner's manual (EN) version 1.0...

  • Page 23: Rigging Elements For Own Arrays

    Rigging system description Rigging elements for own arrays K3-BUMP K3-BUMP is a rigging frame designed for ying K3. Four holes are available on the central bar of K3-BUMP for site angle adjustments. Four additional holes are available to add K3-BAR to K3-BUMP as an extension to increase the site angle. Position A Position B Rear extension...

  • Page 24: K3-Bar

    Rigging system description K3-BAR K3-BAR is an extension bar designed to be combined with K3-BUMP. By adding a K3-BAR to the K3-BUMP, the site angle range can be increased. Seventeen holes are available on the K3- BAR which can be attached to the K3-BUMP as a rear or a front extension and in position A or B, thus offering a total of 68 discrete positions for pick-up points.

  • Page 25: K3-Rigbar

    Rigging system description K3-RIGBAR Secured at the bottom of the array, K3-RIGBAR can be used as a pullback either with K3-BUMP or another K3-RIGBAR as the main lifting accessory. additional safety K3-RIGBAR is equipped with two shackles to secure LA-SLING2T. The external holes are dedicated to implement an additional safety.

  • Page 26: Karadownk3

    Rigging system description KARADOWNK3 KARADOWNK3 is a rigging interface for a Kara / Kara II array under a K3 array. The four tabs on the top are compatible with the K3 rigging system. The four slits tted with ball-locking pins accommodate the Kara / Kara II rigging arms. K3 owner's manual (EN) version 1.0...

  • Page 27: Delta 1.5T

    Rigging system description DELTA 1.5T DELTA 1.5T is designed for azimuth setting. Combined with K3-BUMP and K3-BAR, DELTA 1.5T can be used to control the azimuth angle while K3-BAR controls the site angle. K3 owner's manual (EN) version 1.0...

  • Page 28: La-Rakmount

    Rigging system description LA-RAKMOUNT LA-RAKMOUNT is designed to stack one LA-RAK II AVB on top of a own array. LA-RAKMOUNT is composed of two mounting cradles with rails. The two cradles are screwed on K3-BUMP. LA-RAKMOUNT must be used along with two K3-BAR. K3 owner's manual (EN) version 1.0...

  • Page 29: Rigging Elements For Stacked Arrays

    Rigging system description Rigging elements for stacked arrays K2-JACK K2-JACK is a set of two bars and four feet with screw jacks and hand wheels. K2-JACK can be tted onto K3-CHARIOT to improve stability or correct oor discrepancies. During transportation, make sure the bolts are tightened. K2-JACK cannot be stored on K3-CHARIOT.

  • Page 30: K3-Tilt

    Rigging system description K3-TILT K3-TILT is a site angle adjustment accessory that interfaces between KS28 and K3 in a stacked array. It is used in combination with two KS28-OUTRIG to ensure stability. Do not use K3-TILT in a own array. The opening angle of K3-TILT can be adjusted between 0 and -20°.

  • Page 31: Storage And Handling Elements

    Rigging system description Storage and handling elements K3-CHARIOT K3-CHARIOT is a chariot designed for the transportation and storage of blocks of up to four K3. It features two rear rigging arms to secure the lower K3. During transportation, the blocks must have an inter-enclosure angle of 10° to avoid any separation of the enclosures. This angle must be set using the enclosure rear rigging arm pin.

  • Page 32: K3-Chariotcov

    Rigging system description K3-CHARIOTCOV K3-CHARIOTCOV is a protective cover for four K3 on K3-CHARIOT. K3-CHARIOTCOV features four aps with velcro fasteners at the top to pull out the rigging arms of the top enclosure in order to mount K3-CHARIOTLID. K3 owner's manual (EN) version 1.0...

  • Page 33: K3-Chariotlid

    Rigging system description K3-CHARIOTLID K3-CHARIOTLID can be used to store equipment on top of K3 during transportation. Its load capacity is up to 400 kg/881.8 lb. Multiple K3-CHARIOTLID can be stacked for storage. Refer to Stacking multiple K3-CHARIOTLID on K3-CHARIOT (p.94) for more information. K3 owner's manual (EN) version 1.0...

  • Page 34: K3-Bumpflight

    Rigging system description K3-BUMPFLIGHT K3-BUMPFLIGHT is a ightcase for transporting the accessories of the K3 system. The ightcase contains: • 1 K3-BUMP • 1 K3-BAR • 1 KARADOWNK3 • 1 K3-RIGBAR • 1 K3-TILT • 1 KS28-OUTRIG • 1 DELTA 1.5T •...

  • Page 35: Mechanical Safety

    Mechanical safety Mechanical safety Flown congurations The K3 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 36 Mechanical safety KS28 conguration rigging accessory maximum limit Ground-stacked No rigging accessory or KS28-OUTRIG (optional) 4 or 5 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.

  • Page 37: Loudspeaker ConGurations

    Loudspeaker congurations Loudspeaker congurations Line source Deployed as a line source, the system operates over the nominal bandwidth of the K3 enclosure, with an adjustable horizontal directivity. The [K3 70], [K3 90], and [K3 110] presets allow for a reference frequency response in long throw applications. Each preset is dedicated to a horizontal directivity setting.

  • Page 38: Line Source With Low-Frequency Element

    Loudspeaker congurations Line source with low-frequency element A K3 line source can be deployed with additional subwoofer enclosures to extend the bandwidth in the low-end or increase sub-low resources. The [K3 70], [K3 90], and [K3 110] presets allow for a reference frequency response in long throw applications. Each preset is dedicated to a horizontal directivity setting.
  • Page 39 Loudspeaker congurations Delay values Do not forget to add the pre-alignment and geometric delays depending on the conguration. Pre-alignment delays K3 + KS28 presets pre-alignment delay values and polarity settings [K3] + [KS28_60] K3 = 0.5 ms KS28 = 0 ms [K3] + [KS28_60_C] K3 = 6 ms KS28 = 0 ms...

  • Page 40: Additional DownLl Element

    Loudspeaker congurations Additional downll element All K3 system congurations can be combined with an additional Kara / Kara II line source downll system. This allows an extension of the vertical coverage to the closer audiences. Kara / Kara II The Kara / Kara II enclosures are driven by the LA4X / LA8 / LA12X amplied controllers. Enclosure Kara II or Kara Preset...

  • Page 41: Inspection And Preventive Maintenance

    (p.42) 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.57). Perform the Listening test (p.59) to detect any degradation in sound quality.

  • Page 42: Rigging Part Inspection

    5. Check the moving parts. Make sure that the mechanism engages correctly. What to do next If a problem is detected, perform the authorized maintenance operations or contact your L-Acoustics representative. Mechanical system overview Critical parts of the lifting chains are highlighted.

  • Page 43: K3 Array With K3-Bump And K3-Bar

    Inspection and preventive maintenance K3 array with K3-BUMP and K3-BAR Refer to Rigging part inspection (p.42). Ball-locking pins (p.50) Shackles (p.52) Ball-locking pins (p.50) Rigging check (p.53) the screw of the grill Ball-locking pins (p.50) locking system is present K3 owner's manual (EN) version 1.0...

  • Page 44: K3 Array With K3-Bump And Karadownk3

    Inspection and preventive maintenance K3 array with K3-BUMP and KARADOWNK3 Refer to Rigging part inspection (p.42). Shackles (p.52) Ball-locking pins (p.50) Rigging check (p.53) Ball-locking pins (p.50) the screw of the grill locking system is present Ball-locking pins (p.50) Refer to the Kara II owner's manual.

  • Page 45: K3 Array With K3-Rigbar As Pullback

    Inspection and preventive maintenance K3 array with K3-RIGBAR as pullback Shackles (p.52) Ball-locking pins (p.50) Rigging check (p.53) the screw of the grill Ball-locking pins (p.50) locking system is present Ball-locking pins (p.50) Shackles (p.52) K3 owner's manual (EN) version 1.0...

  • Page 46: K3 Array With K3-Bar, La-Rakmount, And K3-Bump

    Inspection and preventive maintenance K3 array with K3-BAR, LA-RAKMOUNT, and K3-BUMP Refer to Inspection references (p.50). Shackles (p.52) Ball-locking pins (p.50) Refer to the LA-RAK II AVB owner's manual. screws are tightened Ball-locking pins (p.50) Ball-locking pins (p.50) Rigging check (p.53) Ball-locking pins (p.50)

  • Page 47: K3 Array With K3-Chariot And K2-Jack

    Inspection and preventive maintenance K3 array with K3-CHARIOT and K2-JACK Refer to Rigging part inspection (p.42). the screw of the grill locking system is present Ball-locking pins (p.50) Rigging check (p.53) rear rigging arms rotate correctly turn the hand wheels: the central part is raised (clockwise) or lowered (counter-clockwise)

  • Page 48: K3 Stacked On K3-Tilt And Ks28 With Ks28-Outrig

    Inspection and preventive maintenance K3 stacked on K3-TILT and KS28 with KS28-OUTRIG Refer to Rigging part inspection (p.42). the screw of the grill Ball-locking pins (p.50) locking system is Rigging check (p.53) present Shackles (p.52) the rear rigging arms Ball-locking pins (p.50) can move freely the rigging arms...

  • Page 49: K3 Stacked On K3-Chariot With K3-Chariotcov And K3-Chariotlid

    Inspection and preventive maintenance K3 stacked on K3-CHARIOT with K3-CHARIOTCOV and K3-CHARIOTLID Refer to Rigging part inspection (p.42). Ball-locking pins (p.50) Rigging check (p.53) cover is not damaged rear rigging arms rotate correctly K3 owner's manual (EN) version 1.0...

  • Page 50: Inspection References

    Inspection and preventive maintenance Inspection references Ball-locking pins Reference pictures tether (K3-BUMP) tether (K3-BAR) tether (K3) tether (K3) K3 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.42)
  • Page 52 • Runners are not worn out. • Screws are tightened. Reference pictures KS28 ground runner and corner stops KS28 corner stop KS28-OUTRIG runner Contact your L-Acoustics representative for repair instructions. Related tasks Rigging part inspection (p.42) K3 owner's manual (EN) version 1.0...

  • Page 53: Rigging Check

    Inspection and preventive maintenance Rigging check Procedure 1. Position one K3 on top of another one. 2. Secure the front rigging arms at the LINK holes. • The front rigging arms can be deployed with some resistance, and rotate correctly. •...
  • Page 54 Inspection and preventive maintenance 3. Secure the rear rigging arms at the LINK holes. • The rear rigging arms can be deployed with some resistance, and slide correctly. • The ball-type plunger protrudes out the rigging system. K3 owner's manual (EN) version 1.0...
  • Page 55 Inspection and preventive maintenance 4. Secure the rear rigging arms at one of the inter-enclosure holes. 5. Press the button to activate the automatic locking system. • The latch slightly retracts when the button is pushed (yellow label visible). 6. Hold and lift the array to lock the inter-enclosure angles. •...
  • Page 56 Inspection and preventive maintenance 7. Disassemble the two enclosures. Risk of trapping ngers When disassembling the enclosures, hold the top one by the handles. 8. Repeat the procedure with the other enclosures. K3 owner's manual (EN) version 1.0...

  • Page 57: Acoustical Check

    Inspection and preventive maintenance Acoustical check Enclosure check This feature is available on: LA4X LA12X ENCLOSURE CHECK measures impedance at the reference frequencies for the connected loudspeaker family. The measured impedance is compared to the expected range allowing for fast detection of loudspeakers presenting circuit continuity issues.
  • Page 58 Inspection and preventive maintenance 7. Depending on the displayed results, follow the instructions in the table. result interpretation instructions measured impedance is within expected range enclosure is in working order electrically unsupported preset family only supported enclosures should be tested Not Connected if cables are connected: a.
  • Page 59 Inspection and preventive maintenance Listening test enclosure preset usable bandwidth [K3 70] 42 Hz - 20 kHz Kara II [KARA II 70] 55 Hz - 20 kHz KS28 [KS28_100] 25 Hz - 110 Hz KS21 [KS21_100] 31 Hz - 100 Hz Procedure 1.
  • Page 60 Inspection and preventive maintenance Troubleshooting for HF drivers One or more HF driver produces high-frequency harmonic distortions, strange vibrations or weak sound. Possible causes • There are foreign particles on the air gap. • The diaphragm is not centered correctly. •...

  • Page 61: Rigging Procedures

    Rigging procedures Rigging procedures Preparing a block of four K3 Type of deployment stacked array Rigging accessory K3-CHARIOT Min number of operators Procedure 1. Prepare K3-CHARIOT. Fully rotate the rear rigging arms of K3-CHARIOT to attach a rst K3. 2. Position a rst K3 on K3-CHARIOT. K3 owner's manual (EN) version 1.0...
  • Page 62 Rigging procedures 3. Secure the enclosure at the front using the LINK hole. 4. Lift the rear of the enclosure and rotate the dolly rear rigging arm in its upward position. 5. Secure the enclosure using the LINK hole. K3 owner's manual (EN) version 1.0...
  • Page 63 Rigging procedures 6. Position another K3 on the rst one. Keep holding the enclosure with the handles until the front rigging arm is secured. 7. While holding the handle, rotate the front rigging arm and secure it with both LINK pins. K3 owner's manual (EN) version 1.0...
  • Page 64 Rigging procedures 8. Slide the rear rigging arm and secure it with both pins, in the LINK and 10° holes. 9. Make sure the automatic locking system button is unloaded. If the button has been pressed, pull to disengage the latch. 10.

  • Page 65: Pre-Setting The Inter-Enclosure Angles

    Rigging procedures Pre-setting the inter-enclosure angles Procedure 1. On both sides, remove the pin from its current angle hole. 2. Position the pin at the chosen angle hole and slide the rigging arm until the pin goes in. K3 owner's manual (EN) version 1.0...
  • Page 66 Rigging procedures 3. Press the lock button to lock the inter-enclosure angle. K3 owner's manual (EN) version 1.0...

  • Page 67: Flying

    Rigging procedures Flying Flying an array with K3-BUMP and K3-BAR Type of deployment own array Rigging accessory K3-BUMP 2 × Ø19 mm shackles WLL 3.25 t (provided) K3-BAR Min number of operators Prerequisite Preset inter-enclosure angles Preset the inter-enclosure angles before performing this procedure. Refer to Pre-setting the inter-enclosure angles (p.65).
  • Page 68 Rigging procedures b) Secure K3-BAR to K3-BUMP with the pins. c) Lift K3-BUMP using the motor. K3 owner's manual (EN) version 1.0...
  • Page 69 Rigging procedures 3. Lower K3-BUMP to facilitate the connection between the enclosures and the rigging frame. 4. Secure K3-BUMP on top of the array. a) Attach the front rigging arm on both sides. Rotate the arm and secure it with the K3-BUMP pin. K3 owner's manual (EN) version 1.0...
  • Page 70 Rigging procedures b) Lower the K3-BUMP and secure the connection with the K3 pin. If the pin resists, move the frame back and forth. c) Lower the rear of the K3-BUMP. d) Attach the rear rigging arm to the frame. e) Slide the arm to its 5°...
  • Page 71 Rigging procedures g) Secure the arm with the K3-BUMP pin. 5. Raise the array to lock the inter-enclosure angles. SHLAK! SHLAK! SHLAK! SHLAK! K3 owner's manual (EN) version 1.0...
  • Page 72 Rigging procedures 6. Remove the chariot from the array. a) Hold the chariot with one hand. Remove the back pin on both sides. b) Hold the chariot with one hand. Remove the front pin on both sides. K3 owner's manual (EN) version 1.0...

  • Page 73: Adding A Pullback With K3-Rigbar

    Rigging procedures Adding a pullback with K3-RIGBAR Type of deployment own array Rigging accessory K3-RIGBAR 2 × Ø19 mm shackles WLL 3.25 t (provided) Min number of operators Pickup points must be aligned with the linking points. under K3-RIGBAR under K3-BAR Procedure Optionally, secure another K3-RIGBAR on the top enclosure to replace K3-BUMP as the main lifting accessory.
  • Page 74 Rigging procedures The additional safety must either be: A two-leg bridle sling with a pickup Two safety slings. point higher than the LA-SLING2T. 5. Attach the K3-RIGBAR to the bottom enclosure. Do not use the rear rigging middle hole. K3 owner's manual (EN) version 1.0...
  • Page 75 Rigging procedures Use the rear rigging hole. 6. Adjust the height of the pickup-point. Do not raise the rear pick-up point above the front pick-up point. The chains must be as vertical as possible. Under K3-RIGBAR Under K3-BAR K3 owner's manual (EN) version 1.0...

  • Page 76: Rigging A Kara Ii DownLl Array Under A K3 Array With Karadownk3

    Rigging procedures Rigging a Kara II downll array under a K3 array with KARADOWNK3 Type of deployment own array Rigging accessory KARADOWNK3 Min number of operators About this task Reference rigging manuals This procedure is complementary to the rigging instructions available in the main system rigging manuals. Refer to the Kara II owner's manual for more details.
  • Page 77 Rigging procedures b) Slide up the rear rigging arms and select the same inter-element angle, from 0° to 10°. 2. Secure a KARADOWNK3 on top of the Kara II array. Position the higher ledge at the rear. Secure the Kara II rigging arms inside the slits with the ball-locking pins. K3 owner's manual (EN) version 1.0...
  • Page 78 Rigging procedures 3. Lower the K3 array as close as possible to the assembly without resting on it. 4. Disconnect the rear rigging between the two top Kara II enclosures. 5. Connect KARADOWNK3 to the bottom of the K3 array. Risk of crushing injury.
  • Page 79 Rigging procedures b) Secure the front KARADOWNK3 tabs to the K3 rigging. Slightly lower the K3 array if necessary. c) Reconnect the top Kara II at the rear to the assembly. 6. Raise the array. Do not implement a pullback on a K3 array with a Kara II downll. 7.

  • Page 80: Securing La-Rak Ii Avb On La-Rakmount

    Rigging procedures Securing LA-RAK II AVB on LA-RAKMOUNT Type of deployment own array Rigging accessories LA-RAKMOUNT (2 rails for 1 LA-RAK II AVB 8 M8×30 screws (provided with LA-RAKMOUNT) K3-BUMP LA-RAK II AVB Additional accessories electric screwdriver with torque selector Min number of operators Procedure 1.
  • Page 81 Rigging procedures 2. Install two K3-BAR on both sides of the K3-BUMP. 3. Remove the LA-RAK II AVB coupling bars. Turn the bars to release the spring-loaded safety and slide them out. K3 owner's manual (EN) version 1.0...
  • Page 82 Rigging procedures 4. Position the LA-RAK II AVB on the rails. 5. Secure the LA-RAK II AVB with the coupling bars. Insert the spring-loaded safety in the LA-RAK II AVB rails, give a quarter turn and slide the bar until the safety locks into place.

  • Page 83: Stacking

    Rigging procedures Stacking Stacking K3 on KS28 with K3-TILT Type of deployment stacked array Rigging accessory K3-TILT KS28-OUTRIG Min number of operators Stacking KS28 Refer to KS28 documentation for more information. Procedure 1. Secure KS28-OUTRIG under KS28. Risk of crushing injury. Keep ngers away from the contact area between the ledge and the cabinet.
  • Page 84 Rigging procedures 2. Optionally, secure an additional KS28 on top. Connect each enclosure on both sides before adding the new one. SHLAK! K3 owner's manual (EN) version 1.0...
  • Page 85 Rigging procedures 3. Place the K3-TILT on top of KS28. 4. Secure the K3-TILT to KS28. K3 owner's manual (EN) version 1.0...
  • Page 86 Rigging procedures 5. Place one K3 on KS28. Align the enclosure to the arms of K3-TILT. K3 owner's manual (EN) version 1.0...
  • Page 87 Rigging procedures 6. Secure K3 to the K3-TILT. a) Secure the front arms of K3-TILT to the bottom front of the enclosure. Connect the K3 ball-locking pin to the front arms of K3-TILT. b) Secure the rear arms of K3-TILT to the bottom rear of the enclosure. Connect the K3 ball-locking pin to the rear sliding arms of K3-TILT.
  • Page 88 Rigging procedures Remove the ball-locking pin of the sliding arms and lift the enclosure to set the angle. Set the angle and secure the sliding arm with the ball-locking pin. Multiple angles are available: 5° 20° 12.5° 17.5° 2.5° 10° 15°...

  • Page 89: Attaching K2-Jack Stabilizers To K3-Chariot

    Rigging procedures Attaching K2-JACK stabilizers to K3-CHARIOT Type of deployment stacked array Rigging accessory K2-JACK K3-CHARIOT Min number of operators Procedure 1. Attach the K2-JACK to the K3-CHARIOT: a) Insert the K2-JACK studs through the K3-CHARIOT. b) Raise and turn the K2-JACK handles to secure the locking system. K3 owner's manual (EN) version 1.0...
  • Page 90 Rigging procedures Dust During the K2-JACK stabilizers rst use dust will come off the threaded rod. It is expected and does not indicate a malfunction. 2. Prepare the K2-JACK stabilizers. Rotate the threaded rod counter-clockwise so the central part of the stabilizer is closest to the base. 3.
  • Page 91 Rigging procedures 4. Rotate the feet clockwise to raise the K3-CHARIOT off the ground. Stop raising the stack as soon as the wheels get off the ground. K3 owner's manual (EN) version 1.0...

  • Page 92: Adjusting The K3-Chariot Site Angle

    Rigging procedures Adjusting the K3-CHARIOT site angle Type of deployment stacked array Rigging accessory K2-JACK K3-CHARIOT Min number of operators Procedure 1. Verify the wheels are as close as possible to the ground without touching it. 2. Loosen one stabilizer bolt and tighten the other one depending of the target site angle. Tighten the bolt by hand only.
  • Page 93 Rigging procedures 3. Adjust the site angle: Tipping hazard Adjust either the stabilizer at the front or at the back of the stack. Do not adjust both the front and back of the stack. With the back screw jacks With the front screw jacks for a positive site angle. for a negative site angle.

  • Page 94: Transporting

    Rigging procedures Transporting Stacking multiple K3-CHARIOTLID on K3-CHARIOT Type of deployment stacked array Rigging accessory K3-CHARIOTLID K3-CHARIOT Min number of operators Prerequisite The rear rigging arms of K3-CHARIOT are on storage position. Procedure 1. Position one K3-CHARIOTLID on K3-CHARIOT. The longer side must be on the rear rigging arms of K3-CHARIOT. 2.
  • Page 95 Rigging procedures Storing multiple K3-CHARIOTLID on K3-CHARIOT Alternate the position of each K3-CHARIOTLID. 4. Repeat steps 1 to 3 until each K3-CHARIOTLID is stacked on K3-CHARIOT. K3 owner's manual (EN) version 1.0...

  • Page 96: Mounting K3-Chariotlid To K3

    Rigging procedures Mounting K3-CHARIOTLID to K3 Type of deployment stacked array Rigging accessory K3-CHARIOTLID K3-CHARIOT Min number of operators Prerequisite An array of four K3 is stacked on K3-CHARIOT. Procedure 1. Prepare the top enclosure for K3-CHARIOTLID. a) Lift the front rigging arms and secure the ball-locking pin to the LINK position. b) Lift the rear rigging arms and secure the ball-locking pin to 0.25°...
  • Page 97 Rigging procedures 2. Put K3-CHARIOTCOV on K3. Open the top aps to pull out the front and rear rigging arms of the top enclosure. 3. Position one K3-CHARIOTLID on K3. K3 owner's manual (EN) version 1.0...
  • Page 98 Rigging procedures 4. Connect the front rigging arms of K3 Secure the ball-locking pin to the front rigging arm. 5. Position the back of K3-CHARIOTLID on the rear rigging arms. The rear rigging arm must be in the notch of K3-CHARIOTLID. K3 owner's manual (EN) version 1.0...
  • Page 99 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 enclosure per controller (refer to the footnote). LA4X LA12X per output / total per output...
  • Page 100 Connection to LA amplied controllers Cabling schemes for KS28 Two-channel speakON output CH(1) SP-Y1 CC4FP CH(2) 1+/1- 2+/2- Four-channel CA-COM output SPK1 SPK2 SPK3 SPK4 K3 owner's manual (EN) version 1.0...
  • Page 101 Specications Specications K3 specications Description ® 2-way active WST enclosure: 2 x 12" LF + 4" HF diaphragm, amplied by LA4X / LA8 / LA12X Usable bandwidth (-10 dB) 42 Hz - 20 kHz ([K3 70]) Maximum SPL 143 dB ([K3 70]) Nominal directivity (-6 dB) horizontal: 70°...
  • Page 102 Specications K3 dimensions 950 mm / 37.4 in 402 mm / 15.8 in K3 owner's manual (EN) version 1.0...
  • Page 103 Specications KS28 specications Description Flyable subwoofer 2 x 18'' , amplied by LA12X Low frequency limit (-10 dB) 25 Hz ([KS28_100]) Maximum SPL 143 dB ([KS28_100]) Directivity standard or cardioid Transducers 2 × 18" neodymium cone drivers Acoustical load bass-reex, L-Vents Nominal impedance 4 Ω...
  • Page 104 Specications KS21 specications Description High power compact subwoofer: 1x21'' , amplied by LA4X / LA8 / LA12X Low frequency limit (-10 dB) 31 Hz ([KS21_100]) Maximum SPL 138 dB ([KS21_100]) Nominal directivity (-6 dB) standard or cardioid conguration Transducers 1 × 21" neodymium cone driver Acoustical load bass-reex, L-Vents Nominal impedance...
  • Page 105 Specications KS21 dimensions 764 mm / 30 in 602 mm / 23.7 in 752 mm / 29.6 in K3 owner's manual (EN) version 1.0...
  • Page 106 Specications K3-BUMP specications Description Flying frame for K3 Weight (net) 35 kg / 77 lb Material high grade steel with anti-corrosion coating K3-BUMP dimensions 985 mm / 38.7 in K3 owner's manual (EN) version 1.0...
  • Page 107 Specications K3-RIGBAR specications Description Rigging bar and pullback for K3 (includes LA-SLING2T) Weight (net) 18 kg / 40 lb Material high grade steel with anti-corrosion coating K3-RIGBAR dimensions 199 mm / 7.8 in 945 mm / 37.2 in K3 owner's manual (EN) version 1.0...
  • Page 108 Specications LA-SLING2T specications Description Lifting chain (DIN EN 818-4) 2-leg , 8 mm Material high grade steel with anti-corrosion coating Weight (net) 3.7 kg / 1.2 lb Lifting chain (DIN EN 818-4) 2-leg, 8 mm Steel grade Nominal length incl. hooks 3.7 kg / 1.2 lb Maximum sling angle β...
  • Page 109 Specications KARADOWNK3 specications Description Interface for ying Kara below K3 Weight (net) 13 kg / 29 lb Material high grade steel with anti-corrosion coating KARADOWNK3 dimensions 941 mm / 37 in 68 mm / 2.7 in 90 mm / 3.5 in K3 owner's manual (EN) version 1.0...
  • Page 110 Specications LA-RAKMOUNT specications Description Mounting cradles for LA-RAK Weight (net) 7 kg / 15 lb Material high grade steel with anti-corrosion coating LA-RAKMOUNT dimensions 161.9 mm / 6.3 in 60 mm / 2.4 in K3 owner's manual (EN) version 1.0...
  • Page 111 Specications DELTA 1.5T specications Description Azimuth angle tuning accessory 1.5T Weight (net) 8 kg / 18 lb Material high grade steel with anti-corrosion coating DELTA 1.5T dimensions 606 mm / 23.9 in 41 mm / 1.6 in 23 mm / 0.9 in K3 owner's manual (EN) version 1.0...
  • Page 112 Specications K3-TILT specications Description Rigging element for stacking K3 on KS28 Weight (net) 14 kg / 31 lb Material high grade steel with anti-corrosion coating K3-TILT dimensions 402 mm / 15.8 in 30 mm / 1.1 in 227 mm / 8.9 in 113 mm / 4.4 in 202 mm / 7.9 in K3 owner's manual (EN) version 1.0...
  • Page 113 Specications K3-BAR specications Description Extension bar for K3-BUMP Weight (net) 16 kg / 35 lb Material high grade steel with anti-corrosion coating K3-BAR dimensions 1014 mm / 39.9 in 65 mm / 2.5 in K3 owner's manual (EN) version 1.0...
  • Page 114 Specications BPCHAIN 1.5T specications Description Extension sling 1.5 tons (included in K3-BUMP) Weight (net) 4 kg / 9 lb Material high grade steel with anti-corrosion coating BPCHAIN 1.5T dimensions 1280 mm / 50.4 in 19 mm / 0.7 in 98 mm / 3.8 in 19 mm / 0.7 in 112 mm / 4.4 in K3 owner's manual (EN) version 1.0...
  • Page 115 Specications KS28-OUTRIG specications Description 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 K3 owner's manual (EN) version 1.0...
  • Page 116 Specications K3-CHARIOT specications Description Chariot for up to 4 K3 Weight (net) 47 kg / 104 lb K3-CHARIOT dimensions 1063 mm / 41.8 in K3 owner's manual (EN) version 1.0...
  • Page 117 Specications K2-JACK specications Description 4 tilt adjustment screw jacks + bar for K2-CHARIOT Weight (net) 10.1 kg / 22.3 lb (for one stabilizer) Material high grade steel with anti-corrosion coating K2-JACK dimensions 1278 mm / 50.3 in 124 mm / 4.9 in K3 owner's manual (EN) version 1.0...
  • Page 118 Specications K3-CHARIOTLID specications Description Protective lid for K3-CHARIOT Weight (net) 11 kg / 24 lb Material high grade steel with anti-corrosion coating K3-CHARIOTLID dimensions 1031 mm / 40.5 in K3 owner's manual (EN) version 1.0...
  • Page 119 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 120 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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K3

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