L-Acoustics X8 User Manual
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L-Acoustics X8 User Manual

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user manual 2.0 (EN)

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Summary of Contents for L-Acoustics X8

  • Page 1 user manual 2.0 (EN)
  • Page 2 Document reference: X8 user manual (EN) version 2.0 Distribution date: November 23, 2015 © 2015 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...

  • Page 3: Table Of Contents

    Loudspeaker configurations..........................9 X8 point source............................9 X8 point source with LF...........................10 X8 with SB15m..........................10 X8 stage monitor............................ 11 X8 stage monitor with LF......................... 12 X8 with SB15m..........................12 Loudspeaker connection............................ 13 Connectors............................. 13 Connection to LA4X..........................14 Using SP cables with passive enclosures..................15 Using SP-Y1 cables........................
  • Page 4 D/R - X8 DIAPHRAGM........................28 Illustrations............................... 31 Loudspeaker cables..........................31 X8 specifications...............................32...

  • Page 5: Safety

    Safety Safety Instructions Never incorporate equipment or accessories not approved by L-Acoustics. Read all the related PRODUCT INFORMATION documents shipped with the products before exploiting the system. Beware of sound levels. Do not stay within close proximity of loudspeakers in operation and consider wearing earplugs.

  • Page 6: Welcome

    RAL color program means that it can melt into any architecture. The X8 is an ideal live monitor capable of accurately translating the signature of large systems at FOH position or in control rooms. The X8 features a pristine L-Acoustics sonic signature, a high SPL capability and extended LF resources in a compact format.

  • Page 7: System Components

    Refer to the LA4X / LA8 user manual for detailed instructions about the whole cabling scheme, including modulation cables and network. Rigging elements Rigging elements or procedures are not presented in this document. Refer to the X8 rigging manual. Software applications Soundvision 3D acoustical and mechanical modeling software...

  • Page 8: Technical Description

    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 1.19 ms (LA8) and 0.76 ms (LA4X). If the monitor is combined with a subwoofer, a custom preset must be used.

  • Page 9: Loudspeaker Configurations

    Loudspeaker configurations X8 point source Deployed as a standalone point source, a X8 system operates over the nominal bandwidth of the X8 enclosure. The [X8] preset allows for a reference frequency response in short throw applications. The X8 enclosure is driven by the LA4X / LA8 amplified controllers.

  • Page 10: X8 Point Source With Lf

    The X8 and SB15m enclosures are driven by the LA4X / LA8 amplified controllers. X8 with SB15m With SB15m, the X8 system contour is reinforced by 8 dB contour at 100 Hz and the bandwidth is extended down to 42 Hz. Enclosure Preset...

  • Page 11: X8 Stage Monitor

    Loudspeaker configurations X8 stage monitor Deployed as a stage monitor, an X8 system operates over the nominal bandwidth of the X8 enclosure. The [X8_MO] preset allows for a reference frequency response in stage monitoring applications. The X8 enclosure is driven by the LA4X / LA8.

  • Page 12: X8 Stage Monitor With Lf

    The X8 and the SB15m enclosures are driven by the LA4X / LA8 amplified controllers. X8 with SB15m With SB15m, the X8 system contour is reinforced by 8 dB contour at 100 Hz and the system bandwidth is extended down to 42 Hz.

  • Page 13: Loudspeaker Connection

    Loudspeaker connection Loudspeaker connection Connectors LINK Internal pinout for L-ACOUSTICS 2-way passive enclosures speakON points Transducer connectors + Not linked Not linked SB15m IN LINK Internal pinout for L-ACOUSTICS subwoofers speakON points Transducer connectors LF + LF - Not linked Not linked X8 user manual (EN) version 2.0...

  • Page 14: Connection To La4X

    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. Impedance load for: — X8 — SB15m number of enclosures in parallel nominal impedance 8 Ω 4 Ω X8 user manual (EN) version 2.0...

  • Page 15: Using Sp Cables With Passive Enclosures

    — If necessary, use SP cables to connect identical enclosures in parallel with the first ones. Refer to the cabling schemes below for more instructions. OUT1 OUT3 OUT2 OUT4 SB15m OUT1 OUT3 OUT4 OUT2 X8 user manual (EN) version 2.0...

  • Page 16: Using Sp-Y1 Cables

    — If necessary, use SP cables to connect identical enclosures in parallel with the first ones. Refer to the cabling schemes below for more instructions. SP-Y1 CC4FP OUT1/OUT2 OUT3/OUT4 SP-Y1 CC4FP SB15m SP-Y1 CC4FP OUT1/OUT2 OUT3/OUT4 SP-Y1 CC4FP X8 user manual (EN) version 2.0...

  • Page 17: Connection To La8

    Impedance load for: — X8 — SB15m number of enclosures in parallel nominal impedance 8 Ω 4 Ω 2.7 Ω X8 user manual (EN) version 2.0...

  • Page 18: Using Sp-Y1 Cables

    — If necessary, use SP cables to connect identical enclosures in parallel with the first ones. Refer to the cabling schemes below for more instructions. SP-Y1 CC4FP OUT1/OUT2 OUT3/OUT4 SP-Y1 CC4FP SB15m SP-Y1 CC4FP OUT1/OUT2 OUT3/OUT4 SP-Y1 CC4FP X8 user manual (EN) version 2.0...

  • Page 19: Using A Do Cable With A Dosub-La8

    — Use a DOSUB-LA8 to split the signal into four channels, each feeding one enclosure. — If necessary, use SP cables to connect identical enclosures in parallel with the first ones. Refer to the cabling schemes below for more instructions. CA-COM SB15m CA-COM X8 user manual (EN) version 2.0...

  • Page 20: Preset Description

    IN A 0 dB 0 ms [SB15_100_C] enclosure loudspeaker outputs channels routing gain delay polarity mute elements SB15m OUT 1 IN A 0 dB 0 ms SB15m OUT 2 SB15m OUT 3 SB15m OUT 4 X8 user manual (EN) version 2.0...

  • Page 21: Recommendation For Speaker Cables

    4 Ω load 2.7 Ω load For your installation projects, you can 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: http://www.l-acoustics.com/installation-outils-de-calcul-1367.html...

  • Page 22: Maintenance

    17704 X8 diaphragm assembly 100604 8" speaker gasket S182 M4x12 hexagon socket head cap screw S100033 M5x25 Tuflok coated flat countersunk head machine screw S342 M5x20 Tuflok coated hexagon socket head cap screw X8 user manual (EN) version 2.0...

  • Page 23: Disassembly And Reassembly Procedures

    Maintenance Disassembly and Reassembly procedures In order to operate, follow the order outlined here. START X8 GRILL X8 COAXIAL SPEAKER X8 DIAPHRAGM X8 user manual (EN) version 2.0...

  • Page 24: D/R - X8 Grill

    Maintenance D/R - X8 GRILL How to remove and reassemble the X8 grill. Tools Name Reference Distributor electric screwdriver with torque selector T25 Torx bit EX.625 FACOM Pre-requisite The enclosure is placed on its bottom face. X8 grill disassembly procedure Procedure 1.
  • Page 25 1. Position the grill. Make sure the logo is on the same side as the handle. 2. Secure the grill with the S100033 screws. Use the T25 Torx bit. Set the torque to 3 N.m. X8 user manual (EN) version 2.0...

  • Page 26: D/R - X8 Coaxial Loudspeaker

    Maintenance D/R - X8 COAXIAL LOUDSPEAKER How to remove and replace a X8 coaxial speaker. Tools Name Reference Distributor electric screwdriver with torque selector 4 mm hex bit EH.604 FACOM Pre-requisite Grill disassembled. X8 GRILL (p.24). The enclosure is placed on its bottom face.
  • Page 27 2. Connect the speaker cables and position the speaker. The LF speaker connectors are oriented downwards. 3. Secure the speaker with the S342 screws. Use the 4 mm hex bit. Set the torque to 3 Nm. X8 user manual (EN) version 2.0...

  • Page 28: D/R - X8 Diaphragm

    Maintenance D/R - X8 DIAPHRAGM How to remove and replace a X8 speaker diaphragm. Tools Name Reference Distributor electric screwdriver with torque selector 3 mm hex bit EH.603 FACOM Allen wrench n°3 Pre-requisite Grill disassembled. X8 GRILL (p.24). Coaxial speaker removed.
  • Page 29 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. X8 user manual (EN) version 2.0...

  • Page 30: Troubleshooting

    Pay close attention to the number of shims and the position of the diaphragm. Apply the recommended torque. 4. Repeat the acoustical check. If a buzzing sound is still audible, it might be necessary to add an extra shim on the air gap. X8 user manual (EN) version 2.0...

  • Page 31: Illustrations

    8-point PA-COM loudspeaker cable (0.7 m / 2.3 ft) DO10 8-point PA-COM loudspeaker cable (10 m / 32.8 ft) DO25 8-point PA-COM loudspeaker cable (25 m / 82 ft) DOSUB-LA8 breakout cable for four passive enclosures SP-Y1 breakout cable for two passive enclosures X8 user manual (EN) version 2.0...

  • Page 32: X8 Specifications

    X8 specifications X8 specifications Description passive 2-way coaxial enclosure, amplified by LA4X / LA8 Usable bandwidth (-10 dB) 60 Hz - 20 kHz ([X8]) Maximum SPL 127 dB ([X8]) Nominal directivity axisymmetric 100° Monitoring angle 35° Transducers 1 × 8" weather-resistant, bass-reflex laminar vents 1 ×...
  • Page 33 16.7 in / 9.8 in / 10.4 in Monitor H/W/D 278 mm / 424 mm / 306 mm 10.9 in / 16.7 in / 12 in 264 mm / 10.4 in 250 mm / 9.8 in 306 mm / 12 in X8 user manual (EN) version 2.0...

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