L-Acoustics X8 Owner's Manual
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L-Acoustics X8 Owner's Manual

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Summary of Contents for L-Acoustics X8

  • Page 1 owner's manual (EN)
  • Page 2 Document reference: X8 owner's manual (EN) version 1.0 Distribution date: December 7, 2021 © 2021 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

    X8 point source............................23 X8 point source with LF...........................24 X8 stage monitor............................ 25 Low-latency preset......................... 25 Paired X8 monitors with LFC......................25 X8 stage monitor with LF......................... 26 Inspection and preventive maintenance....................... 27 How to do preventive maintenance......................27 Rigging part inspection........................... 27...
  • Page 4 Flying with X-US8 or X-UL8......................50 Flying with X-UL8i......................... 56 Flying with X-BAR..........................58 Pole-mounting............................62 Pole-mounting with X-US8.......................62 Connection to LA amplied controllers........................ 67 Corrective maintenance............................. 68 Introduction.............................68 X8................................. 69 Specications..............................74 X8................................. 74 X-UL8..............................78 X-UL8i..............................79 X-US8..............................80 X-BAR..............................81 X-UTILT..............................82 EMBi..............................83...

  • 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

    The L-Vents laminar vented ports reduce turbulence and port noise at high levels to increase LF efciency. The X8 operates from 60 Hz to 20 kHz. The coaxial transducer arrangement and its partial horn produce a 100° axisymmetric directivity output with a smooth tonal response free of secondary lobes over the entire frequency range.

  • Page 8: Revision History

    Information about the connection of the enclosures to the LA amplied controllers is given in this document. Refer to the LA4X / LA8 / LA12X owner's manual for detailed instructions about the whole cabling scheme, including modulation cables and network. Rigging elements X-UL8 Long U-bracket for X8 X8 owner's manual (EN) version 1.0...
  • Page 9 System components X-UL8i Long U-bracket for X8 (installation version) X-US8 Short U-bracket for X8 X-UTILT U-bracket wallmount for X series with tilt adjustment X-BAR Rigging bar for 1 enclosure EMBi Pole mount socket: 8XTi/12XTi and X series CLAMP250 Clamp certied for 250 kg...
  • Page 10 System components X-UTILT X-BAR EMBi CLAMP250 X8 owner's manual (EN) version 1.0...

  • Page 11: Electro-Acoustical Description

    −40 −60 −80 −100 −120 −140 −160 −180 1 000 10 000 Frequency (Hz) Dispersion angle diagram of a single X8 using lines of equal sound pressure at -3 dB, -6 dB, -12 dB. X8 owner's manual (EN) version 1.0...

  • Page 12: Preset Description

    OUT 3 OUT 4 Connectors SpeakON connectors can be used interchangeably as IN or LINK connector. 2 × 4-point speakON Internal pinout for L-Acoustics 2-way passive enclosures SpeakON points Transducer connectors + Not linked Not linked X8 owner's manual (EN) version 1.0...

  • Page 13: Rigging System Description

    Rigging system description Rigging system description X8 features a M8 DIN580 threaded insert designed to implement a secondary safety. The logo on the enclosure front can be rotated to adapt to every conguration. X8 features an ergonomic handle for easy transportation.

  • Page 14: Elements For Ying And Wall-Mounting

    Elements for ying and wall-mounting X-US8 and X-UL8 X8 can be tted with a short U-bracket, X-US8, or a long U-bracket, X-UL8. The brackets are secured in the enclosure inserts with two threaded knobs. A spring-lock safety mechanism secures the knobs in the U-brackets.
  • Page 15 Rigging system description When using the additional hole, consider the maximum site angle available. Maximum angles (p.54). X-US8 features an additional hole on the sides to closely t the enclosure and to minimize visual impact. X8 owner's manual (EN) version 1.0...
  • Page 16 Rigging system description The knobs shall be stored in the U-brackets. X8 owner's manual (EN) version 1.0...

  • Page 17: X-Ul8I

    Rigging system description X-UL8i X-UL8i is a long U-bracket for wall-mounting, ceiling-mounting, or ying X8 in xed installation applications. It is secured to X8 with two M10 screws and washers (provided). Fasteners for wall-mounting or ceiling-mounting Secure the bracket with two M8 screws.
  • Page 18 X-UTILT, and hole 2 to secure the rigging arm. Hole 3 is reserved for storage (0° site angle). When using X-US8, the bracket must be secured with the label on top. label Fasteners for wall-mounting Secure X-UTILT with two M10 screws. Select screw length and anchors applicable to the wall properties. X8 owner's manual (EN) version 1.0...

  • Page 19: X-Bar

    Rigging system description X-BAR X-BAR is a rigging bar for ying X8. The rigging system consists of a threaded axis with a cam lever. X-BAR is secured to the dedicated inserts on the enclosure, in front or rear extension position.

  • Page 20: Elements For Pole-Mounting

    EMBi is a pole-mount adapter for X-US8 (35 mm pole). The site angle can be adjusted with the U-bracket. Risk of damaging the bracket safety mechanism When using X-US8 and EMBi for pole-mounting X8, always use the additional holes on the bracket. Do not use X-UL8 with EMBi.

  • Page 21: Subwoofer

    Rigging system description Do not use EMBi with X-UL8i. In pole-mounting position, the screws are not maintained by the bracket hooks. Subwoofer SB15m features a 35 mm pole socket. X8 owner's manual (EN) version 1.0...

  • Page 22: Mechanical Safety

    Mechanical safety Mechanical safety The X8 rigging system complies with EN 62368-1: 2014 Audio/video, information and communication technology equipment — Part 1: Safety requirements. The deployments described in this manual achieve a safety factor of 5. Conguration Rigging accessory Maximum / Safe limit...

  • Page 23: Loudspeaker ConGurations

    Loudspeaker congurations X8 point source Deployed as a standalone point source, an X8 system operates over the nominal bandwidth of the X8 enclosure. The [X8] preset delivers a reference frequency response in short throw applications. The X8 enclosure is driven by the LA4X / LA8 / LA12X amplied controllers.

  • Page 24: X8 Point Source With Lf

    The X8 and SB15m enclosures are driven by the LA4X / LA8 / LA12X amplied controllers. X8 with SB15m With SB15m, the X8 system contour is reinforced by 8 dB at 100 Hz and the bandwidth is extended down to 40 Hz. Enclosure X8...

  • Page 25: X8 Stage Monitor

    Low-latency preset A low-latency preset is available for the X8 enclosure used as a monitor ([X8_MO]). It reduces latency from 3.84 ms down to 1.18 ms (LA8) and 0.84 ms (LA4X / LA12X). If the monitor is combined with a subwoofer, a custom preset must be used.

  • Page 26: X8 Stage Monitor With Lf

    The X8 and the SB15m enclosures are driven by the LA4X / LA8 / LA12X amplied controllers. X8 stage monitor with SB15m With SB15m, the X8 system contour is reinforced by 8 dB at 100 Hz and the system bandwidth is extended down to 40 35°...

  • Page 27: Inspection And Preventive Maintenance

    • fasteners used for assembling two products together such as ball-locking pins, rigging axes, rigging screws, threaded knobs, and safety pins 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.
  • Page 28 Place the rigging part on a at surface or hold a level against it. 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. X8 owner's manual (EN) version 1.0...

  • Page 29: Mechanical System Overview

    Threaded knobs (p.32) the inserts are not damaged X8 with X-UL8i the washers are present the supporting screws are tightened the screws are tightened the inserts are not damaged X8 owner's manual (EN) version 1.0...
  • Page 30 X8 owner's manual (EN) version 1.0...
  • Page 31 Inspection and preventive maintenance X8 pole-mounted the pole socket is not damaged X8 pole-mounted with X-US8 and EMBi on SB15m the inserts are not damaged Threaded knobs (p.32) the screws are tightened the wing knob is tightened Pole-mount socket (p.32)

  • Page 32: Inspection References

    Pole-mount socket • Pole-mount socket is not damaged or bent. • Screws are tightened. • Socket plug is present. Reference pictures Contact your L-Acoustics representative for repair instructions. Related tasks Rigging part inspection (p.27) X8 owner's manual (EN) version 1.0...

  • Page 33: 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. X8 owner's manual (EN) version 1.0...
  • Page 34 • 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. X8 owner's manual (EN) version 1.0...
  • Page 35 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. X8 owner's manual (EN) version 1.0...
  • Page 36 Apply the recommended torque. 5. Repeat the listening test. If a buzzing sound is still audible, it might be necessary to add an extra shim on the air gap. If the problem persists, replace the driver. X8 owner's manual (EN) version 1.0...

  • Page 37: Rigging Procedures

    The same procedure applies for X-UL8 in vertical position or in ceiling-mounting conguration and X-US8 in horizontal or vertical position or in ceiling-mounting conguration. Assembly Procedure 1. Drive the knobs in the inserts on the enclosure. Stop when the threading is halfway in. X8 owner's manual (EN) version 1.0...
  • Page 38 3. Lift the enclosure by the knobs and place it inside the U-bracket. Adjust the knobs on both sides so that the safety washer is between the hook and the enclosure. 4. Push until the knobs are locked inside the spring-lock safety mechanism. SHLAK! X8 owner's manual (EN) version 1.0...
  • Page 39 Rigging procedures 5. Set the site angle. Use the screw as a reference point to read the label. 6. Tighten the knobs. Make sure the enclosure is steady. X8 owner's manual (EN) version 1.0...
  • Page 40 Do not unscrew the knobs all the way. 2. On both sides, pull on the safety mechanism while lifting the enclosure by the knobs to release it. 3. Remove the U-bracket from the wall. X8 owner's manual (EN) version 1.0...

  • Page 41: Using X-Us8 Or X-Ul8 With X-Utilt

    Use X-UTILT only vertically and for negative site angles. Fasteners for wall-mounting Secure X-UTILT with two M10 screws. Select screw length and anchors applicable to the wall properties. The procedure is shown with X-UL8 The same procedure applies for X-US8. X8 owner's manual (EN) version 1.0...
  • Page 42 1. Secure X-UTILT to the wall using M10 screws. Position X-UTILT with the holes for angle selection at the top. 2. Secure the U-bracket to X-UTILT. When using X-US8, the bracket must be secured with the label on top. label X8 owner's manual (EN) version 1.0...
  • Page 43 X-US8 and X-UL8 have three holes for assembling with X-UTILT. Use hole 1 (furthest from the label) to secure the U-bracket to X-UTILT, and hole 2 to secure the rigging arm. Hole 3 is reserved for storage (0° site angle). X8 owner's manual (EN) version 1.0...
  • Page 44 Stop when the threading is halfway in. 6. Lift the enclosure by the knobs and place it inside the U-bracket. Adjust the knobs on both sides so that the safety washer is between the hook and the enclosure. X8 owner's manual (EN) version 1.0...
  • Page 45 Rigging procedures 7. Push until the knobs are locked inside the spring-lock safety mechanism. SHLAK! 8. Set the azimuth angle. Use the screw as a reference point to read the label. X8 owner's manual (EN) version 1.0...
  • Page 46 Do not unscrew the knobs all the way. 2. On both sides, pull on the safety mechanism while sliding the enclosure out of the U-bracket. 3. Remove the U-bracket and X-UTILT from the wall. X8 owner's manual (EN) version 1.0...

  • Page 47: Mounting On X-Ul8I

    The same procedure applies for X-UL8i in horizontal position or in ceiling-mounting conguration. Assembly Procedure 1. Drive the M10 screws with washers in the inserts on the enclosure. Stop when the threading is halfway in. X8 owner's manual (EN) version 1.0...
  • Page 48 Select screw length and anchors applicable to the wall or ceiling properties. 2. Secure the U-bracket to the wall using two M8 screws. 3. Lift the enclosure and place it inside the U-bracket. Place the washers between the screw heads and the hooks. X8 owner's manual (EN) version 1.0...
  • Page 49 Rigging procedures 4. Set the azimuth or site angle. Use a digital level or an inclinometer if necessary. 5. Tighten the screws. Apply a 7 N.m. torque. Make sure the enclosure is steady. X8 owner's manual (EN) version 1.0...

  • Page 50: Flying

    When ying an enclosure, use the M8 DIN580 threaded insert to implement a secondary safety. The procedure is shown with X-US8. The same procedure applies for X-UL8. Assembly Procedure 1. Drive the knobs in the inserts on the enclosure. Stop when the threading is halfway in. X8 owner's manual (EN) version 1.0...
  • Page 51 Adjust the knobs on both sides so that the safety washer is between the hook and the enclosure. 3. Push down until the knobs are locked inside the spring-lock mechanism. SHLAK! Alternatively, use the additional hole on the U-bracket. X8 owner's manual (EN) version 1.0...
  • Page 52 The hooks on the bracket must be oriented towards the front of the enclosure. Make sure the safety washer goes through the hole on the bracket. 4. Tighten the knobs and y the enclosure with a clamp. X8 owner's manual (EN) version 1.0...
  • Page 53 Rigging procedures 5. Loosen the knobs to set the site angle. Use the screw as a reference point to read the label. X8 owner's manual (EN) version 1.0...
  • Page 54 Rigging procedures 6. Tighten the knobs. Make sure the enclosure is steady. Maximum angles When using the additional hole on the U-bracket, consider the maximum negative site angle available. -28° X8 owner's manual (EN) version 1.0...
  • Page 55 Rigging procedures Disassembly Procedure 1. Place the enclosure on a at surface. 2. Loosen the knobs. 3. Pull on the safety mechanism and remove the U-bracket from the enclosure. X8 owner's manual (EN) version 1.0...

  • Page 56: Flying With X-Ul8I

    1. Drive the screws in the inserts on the enclosure. Stop when the threading is halfway in. 2. Place the U-bracket around the assembly. Place the washers between the screw heads and the hooks. X8 owner's manual (EN) version 1.0...
  • Page 57 3. Tighten the screws and y the enclosure with a truss clamp. 4. Loosen the screws to set the site angle. Use an inclinometer or a digital level if necessary. 5. Tighten the screws. Apply a 7 N.m. torque. Make sure the enclosure is steady. X8 owner's manual (EN) version 1.0...

  • Page 58: Flying With X-Bar

    28° 1° 5° -15° 16° 14° -5° -6° 3° 27° -14° 3° -11° 37° -23° 13° -24° 47° -31° 22° Assembly Procedure 1. Lay the enclosure on a at surface. X8 owner's manual (EN) version 1.0...
  • Page 59 Rigging procedures 2. Drive the X-BAR in the insert. 3. Rotate the X-BAR until perpendicular to the front grill. Use the screws as reference points. X8 owner's manual (EN) version 1.0...
  • Page 60 Lift the lever and rotate it counter-clockwise, release the lever and rotate it clockwise. Repeat until the X-BAR is tightly secured. b) Finally, store the lever on the right. 5. Position the shackle or CLAMP250 to select the site angle. Refer to Site angles with X-BAR (p.58). X8 owner's manual (EN) version 1.0...
  • Page 61 6. Lift the assembly. Disassembly Procedure 1. Take down the assembly. 2. Lift the lever and rotate it clockwise. 3. Release the lever and rotate it counter-clockwise. 4. Repeat until the X-BAR can be removed. X8 owner's manual (EN) version 1.0...

  • Page 62: Pole-Mounting

    13 mm wrench min number of operators Risk of damaging the bracket safety mechanism When using X-US8 and EMBi for pole-mounting X8, always use the additional holes on the bracket. Do not use X-UL8 with EMBi. Do not use EMBi with X-UL8i.
  • Page 63 1. Secure EMBi to the U-bracket with the provided bolts and nuts. 10 mm 13 mm 2. Secure the U-bracket to the enclosure using the additional holes. The hooks on the bracket must be oriented towards the front of the enclosure. X8 owner's manual (EN) version 1.0...
  • Page 64 Rigging procedures Make sure the safety washer goes through the hole on the bracket. 3. Tighten the knobs, reverse the assembly and mount it on a pole. 4. Tighten EMBi. X8 owner's manual (EN) version 1.0...
  • Page 65 5. Loosen the knobs to set the site angle. Consider the maximum positive site angle available. Maximum angles +28° 6. Tighten the knobs. Make sure the enclosure is steady. The assembly can be mounted on a tripod or on a subwoofer. X8 owner's manual (EN) version 1.0...
  • Page 66 About this task Remove the assembly from the pole before disassembling the enclosure and the bracket. Procedure 1. Loosen EMBi to remove the assembly from the pole. 2. Remove the bracket from the enclosure. X8 owner's manual (EN) version 1.0...

  • Page 67: Connection To La AmpliEd Controllers

    SPK3 SPK4 For passive loudspeakers, the value corresponds to the number of enclosures in parallel on the output. For active loudspeakers, the value corresponds to the number of sections in parallel on the output. X8 owner's manual (EN) version 1.0...

  • Page 68: Corrective Maintenance

    Coaxial loudspeaker (p.71) • Diaphragm (p.72) For advanced maintenance, contact your L-Acoustics representative. Tools and consumables Before performing maintenance on this product, make sure all the tools listed are available. References are given for FACOM ® products in this table. Other manufacturers can be used.
  • Page 69 Corrective maintenance Disassembly and Reassembly procedures In order to operate, follow the order outlined here. Each assembly refers to the corresponding D/R procedure and the necessary repair kit. GRILL DIAPHRAGM G03174 COAXIAL SPEAKER G03170 X8 owner's manual (EN) version 1.0...
  • Page 70 Corrective maintenance D/R - Grill Tools • torque screwdriver • T25 Torx bit Repair kit G03170 - KR coaxial speaker X8 or G03174 - KR diaphragm X8 ×4 S100033 M5×25 Torx Exploded view For safety reasons, always use the new screws and spare parts provided in the KR.
  • Page 71 3046 100604 S342 8" coaxial speaker - 8 ohms 8" speaker gasket M5×20 hex * The screws and gaskets are also available in G03174 - KR diaphragm X8. Prerequisite Grill disassembled. Grill (p.70). Exploded view For safety reasons, always use the new screws and spare parts provided in the KR.
  • Page 72 Discard the paper disk to avoid parasitic vibrations. 6. Remove the cone. 7. Carefully remove the diaphragm holding it by the connectors. 8. If there are black spacers on the air gap, do not remove them. X8 owner's manual (EN) version 1.0...
  • Page 73 10. Secure the HF driver on the LF driver with the two screws. Use the 3 mm hex bit. Set the torque to 3 Nm. What to do next Perform the Acoustical check (p.33) procedures. X8 owner's manual (EN) version 1.0...

  • Page 74: SpeciCations

    X8 specications Description 2-way passive coaxial enclosure: 8'' LF + 1.5'' HF diaphragm, amplied by LA4X / LA8 / LA12X Usable bandwidth (-10 dB) 60 Hz - 20 kHz ([X8]) Maximum SPL 129 dB ([X8]) Nominal directivity (-6 dB) axisymmetric 100°...
  • Page 75 Specications X8 dimensions 264 mm / 10.4 in 250 mm / 9.8 in 306 mm / 12 in X8 owner's manual (EN) version 1.0...
  • Page 76 Pantone 426 C pure white RAL 9010 custom RAL code on special order IP55 Peak level at 1 m under half space conditions using pink noise with crest factor 4 (preset specied in brackets). X8 owner's manual (EN) version 1.0...
  • Page 77 Specications SB15m dimensions 520 mm / 20.5 in 580 mm / 22.8 in X8 owner's manual (EN) version 1.0...

  • Page 78: X-Ul8

    X-UL8 dimensions 526 mm / 20.7 in 200 mm / 7.9 in Ø 11 mm / 0.43 in 484 mm / 19.1 in 53 mm / 2.1 in 80 mm / 3.1 in X8 owner's manual (EN) version 1.0...

  • Page 79: X-Ul8I

    Specications X-UL8i specications Description Long U-bracket for X8 (installation version) Weight (net) 2 kg / 4.4 lb Material high grade steel with anti-corrosion coating X-UL8i dimensions 451 mm / 17.8 in 78 mm / 3.1 in 50 mm / 2 in 471 mm / 18.5 in...

  • Page 80: X-Us8

    X-US8 dimensions 355 mm / 14 in 100 mm / 3.9 in Ø 11 mm / 0.43 in 318 mm / 12.5 in 53 mm / 2.1 in 80 mm / 3.1 in X8 owner's manual (EN) version 1.0...

  • Page 81: X-Bar

    1 × Ø12 mm shackle WLL 1 t Weight (net) 1.1 kg / 2.4 lb Material high grade steel with anti-corrosion coating X-BAR dimensions 83 mm / 3.3 in Ø 13 mm / 0.5 in 185 mm / 7.3 in X8 owner's manual (EN) version 1.0...

  • Page 82: X-Utilt

    X-UTILT dimensions 300 mm / 11.8 in 88 mm / 3.5 in 65 mm / 2.6 in 200 mm / 7.9 in Ø 11 mm / 0.43 in X8 owner's manual (EN) version 1.0...

  • Page 83: Embi

    Pole mount socket: 8XTi/12XTi and X series Weight (net) 0.5 kg / 1 lb Material high grade steel with anti-corrosion coating EMBi dimensions 35 mm / 1.4 in 46 mm / 1.8 in 115.5 mm / 4.5 in X8 owner's manual (EN) version 1.0...

  • Page 84: Appendix: 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/installation-tools/...
  • Page 85 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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