L-acoustics X15 HIQ User Manual
X15 HIQ
user manual (EN)
Document reference: X15 HiQ user manual (EN) version 5.0
Distribution date: June 12, 2018
©
2018 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.
Contents
Safety................................................................................................................................................................ 4
Instructions................................................................................................................................................4
Symbols................................................................................................................................................... 4
Welcome........................................................................................................................................................... 5
System components.............................................................................................................................................6
Loudspeaker cables................................................................................................................................... 7
Technical description........................................................................................................................................... 8
Low-latency preset.....................................................................................................................................8
Directivity................................................................................................................................................. 8
Monitor angles......................................................................................................................................... 9
Loudspeaker congurations................................................................................................................................ 10
X15 HiQ point source........................................................................................................................... 10
X15 HiQ point source with LF..................................................................................................................11
X15 HiQ stage monitor...........................................................................................................................12
X15 HiQ stage monitor with LF................................................................................................................13
Loudspeaker connection.................................................................................................................................... 14
Connectors............................................................................................................................................. 14
Connection to LA4X................................................................................................................................ 15
Connection to LA8.................................................................................................................................. 17
Connection to LA12X.............................................................................................................................. 17
Preset description..............................................................................................................................................20
Recommendation for speaker cables...................................................................................................................21
Maintenance.................................................................................................................................................... 22
Disassembly and Reassembly procedures.................................................................................................. 22
D/R - Grill....................................................................................................................................23
D/R - Waveguide..........................................................................................................................24
D/R - Coaxial loudspeaker............................................................................................................ 28
D/R - HF diaphragm..................................................................................................................... 29
Acoustical check........................................................................................................................... 30
Specications................................................................................................................................................... 34
X15 HiQ specications............................................................................................................................34
SB18 specications................................................................................................................................. 36
3
Safety
Safety
Instructions
Inspect the system before any deployment.
Perform safety related checks and inspections before any deployment.
Perform preventive maintenance at least once a year.
Refer to the preventive maintenance section for a list of actions and their periodicity.
Insufcient upkeep of the product can void the warranty.
If any safety issue is detected during inspection, do not use the product before performing
corrective maintenance.
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.
Do not store the product on an unstable cart, stand, tripod, bracket, or table.
Beware of sound levels.
Do not stay within close proximity of loudspeakers in operation.
Loudspeaker systems are capable of producing very high sound pressure levels (SPL) which can instantaneously
lead to permanent hearing damage to performers, production crew and audience members. Hearing damage
can also occur at moderate level with prolonged exposure to sound.
Check the applicable laws and regulations relating to maximum sound levels and exposure times.
Intended use
This system is intended for use by trained personnel for professional applications.
Read the RIGGING MANUAL before installing the system.
Use the rigging accessories described in the rigging manual and follow the associated procedures.
Read the maintenance section of this document before servicing the product.
Do not expose the product to extreme conditions.
Do not expose the product to rain or sea spray.
Do not expose the product to moisture (mist, steam, humidity, condensation…) or excessive heat (direct sun,
radiator…) for a long period of time.
Contact L-Acoustics for advanced maintenance.
Any unauthorized maintenance operation will void the product warranty.
Symbols
The following symbols are used in this document:
This symbol indicates a potential risk of harm to an individual or damage to the product.
It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of
the product.
This symbol noties the user about instructions that must be strictly followed to ensure proper installation or
operation of the product.
This symbol noties the user about complementary information or optional instructions.
4 X15 HiQ user manual (EN) version 5.0
Welcome
Welcome
Thank you for purchasing the L-Acoustics X15 HiQ.
This document contains essential information on using the system properly.
As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to
change the specications 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.
X15 HiQ reference stage monitor
The X15 HiQ is an active coaxial system designed as a reference stage monitor. The enclosure features a 3" diaphragm
compression driver coaxially-loaded by a low frequency transducer in a bass-reex cabinet. The L-Vents laminar vented
ports reduce turbulence and port noise at high levels to increase LF efciency.
The X15 HiQ operates from to . The coaxial transducer arrangement and its ellipsoid waveguide produce a ×
directivity pattern with a smooth tonal response free of secondary lobes over the entire frequency range. As a result, X15
HiQ boasts an exceptional immunity to feedback.
The L-Acoustics amplied controllers ensure the advanced crossover functions, time alignment, linearization and L-Drive
protection of the transducers.
With a cabinet combining the properties of birch and beech plywood, X15 HiQ weighs a mere and features ergonomic
handles for a solid grip and efcient handling. Its elegance and ultra-low prole make for an easy integration into the set.
It provides a stage monitoring angle setting of with regard to vertical or thanks to its built-in risers. For special narrow
ll applications, the X15 HiQ can be pole-mounted using the integrated socket or own and tilted in various orientations
using its rigging accessories.
The X15 HiQ combines all the qualities of a reference stage monitor. It offers power (SPL) in beamwidth, an excellent
acoustic isolation with its narrow ellipsoid directivity of × , a high immunity to feedback, an ultra-low prole and low
weight for integration and handling, a rugged build and an active design with low latency preset. In addition, sound
designers can take advantage of its directivity for narrow ll applications.
The X15 HiQ can be pole-mounted using the integrated socket. Other deployments such as wall-mounted, ceilingmounted or own are quick and easy, with a complete range of rigging accessories that offer multiple set-up options and
various orientations.
X15 HiQ user manual (EN) version 5.0 5
System components
System components
Loudspeaker enclosures
X15 HiQ 2-way active coaxial enclosure: 15'' LF + 3'' HF diaphragm
SB18 High power compact subwoofer: 1 x 18''
SB18 / SB18i / SB18m
In this document, the SB18 term and illustrations refer equally to SB18, SB18i or SB18m.
Powering and driving system
LA4X / LA8 / LA12X Amplied controller with DSP, preset library and networking capabilities
LA-RAK Touring rack containing three LA8 and power, audio and network distribution
LA-RAK II Touring rack containing three LA12X, LA-POWER II for power distribution and LA-PANEL II for
audio and network distribution
Refer to the LA4X / LA8 / LA12X user manual for operating instructions.
Loudspeaker cables
SP cables 4-point speakON loudspeaker cables (4mm² gauge)
SP cables come in four sizes: SP.7 (0.7m/2.3ft), SP5 (5m/16.4ft), SP10 (10 m/32.8ft) and
SP25 (25m/82ft)
SP-Y1 breakout cable for two passive enclosures (2.5mm² gauge) provided with a CC4FP adapter
4-point speakON to 2 × 2-point speakON
DO 8-point PA-COM loudspeaker cables (4mm² gauge)
DO cables come in three sizes: DO.7 (0.7m/2.3ft), DO10 (10m/32.8ft) and DO25
(25m/82ft)
DOSUB-LA8 breakout cable for four passive enclosures (4mm² gauge)
8-point PA-COM to 4 × 2-point speakON
DOFILL-LA8 breakout cable for two 2-way active enclosures (4mm² gauge)
8-point PA-COM to 2 x 4-point speakON
DO3WFILL breakout cable for one 2-way active enclosure and two passive enclosures (4mm² gauge)
8-point PA-COM to 1 x 4-point speakON and 2 x 2-point speakON
Information about the connection of the enclosures to the LA amplied controllers is given in
this document.
Refer to the LA4X / LA8 / LA12X 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 X15 HiQ rigging manual.
6 X15 HiQ user manual (EN) version 5.0
Software applications
Soundvision 3D acoustical and mechanical modeling software
LA Network Manager Software for remote control and monitoring of amplied controllers
Refer to the Soundvision help.
Refer to the LA Network Manager help.
Loudspeaker cables
System components
0.7 m / 5 m / 10 m / 25 m
1 m
CH(1)
CH(2)
SP.7 / SP5 / SP10 / SP25 SP-Y1
0.7 m / 10 m / 25 m
DO.7 / DO10 / DO25 DOSUB-LA8
3.5 m
5 m
SPK1
SPK2
SPK3
SPK4
3.5 m
2W CH(A)
2WAY
SUB1
2W CH(B)
DOFILL-LA8 DO3WFILL
X15 HiQ user manual (EN) version 5.0 7
SUB2
Technical description
1 000 10 000
Technical description
Low-latency preset
A low-latency preset is available for the X15 HiQ enclosure used as a monitor ([X15_MO]). It reduces latency from
3.84ms down to 1.18ms (LA8) and 0.84 ms (LA4X / LA12X). If the monitor is combined with a subwoofer, a custom
preset must be used.
Directivity
X15 HiQ features a coaxial transducer arrangement coupled with an ellipsoid waveguide that generates an H/V
directivity pattern of 40° x 60°.
180
160
140
120
100
80
60
40
20
0
−20
Angle (°)
−40
−60
−80
−100
−120
−140
−160
−180
100 1 000 10 000
Frequency (Hz)
Dispersion angle diagram of a single X15 HiQ using lines of equal sound pressure at -3 dB, -6 dB, -12 dB.
8 X15 HiQ user manual (EN) version 5.0
Monitor angles
X15 HiQ features risers that allow to change the monitor angle from 35° to 55°.
Technical description
35°
55°
X15 HiQ user manual (EN) version 5.0 9
Loudspeaker congurations
Loudspeaker congurations
X15 HiQ point source
Deployed as a standalone point source, a X15 HiQ system operates over the nominal bandwidth of the X15 HiQ
enclosure.
The [X15] preset allows for a reference frequency response in short throw applications.
The X15 HiQ enclosure is driven by the LA4X / LA8 / LA12X amplied controllers.
Standalone X15 HiQ
Enclosure X15 HiQ
Preset [X15]
Frequency range (-10 dB) 55 Hz - 20 kHz
10 X15 HiQ user manual (EN) version 5.0
Loudspeaker congurations
X15 HiQ point source with LF
Deployed as a point source with SB18 subwoofers, an X15 HiQ system operates with augmented LF resources.
The [X15] preset allows for a reference frequency response in short throw applications.
The [SB18_100] preset provides the SB18 with an upper frequency limit at 100Hz for an optimal frequency coupling
with the X15 HiQ.
The X15 HiQ and SB18 enclosures are driven by the LA4X / LA8 / LA12X amplied controllers.
X15 HiQ with SB18
With SB18, the X15 HiQ system contour is reinforced by 5 dB at 100Hz and the system bandwidth is extended down to
32 Hz.
Enclosure X15 HiQ SB18
Preset [X15] [SB18_100]
Frequency range (-10 dB) 32 Hz - 20 kHz
Enclosure ratio 1 X15 HiQ : 1 SB18
Delay values
Do not forget to add the pre-alignment and geometric delays depending on the conguration.
Pre-alignment delays
[X15] + [SB18_100] X15 HiQ = 0 ms SB18 = 0 ms
X15 HiQ user manual (EN) version 5.0 11
Loudspeaker congurations
X15 HiQ stage monitor
Deployed as a stage monitor, an X15 HiQ system operates over the nominal bandwidth of the X15 HiQ enclosure.
The [X15_MO] preset allows for a reference frequency response in stage monitoring applications.
The X15 HiQ enclosure is driven by LA4X / LA8 / LA12X.
Standalone X15 HiQ
35°
55°
Enclosure X15 HiQ
Preset [X15_MO]
Frequency range (-10 dB) 52 Hz - 20 kHz
Paired X15 HiQ monitors with LFC
The Low Frequency Contour (LFC) tool implemented in LA Network Manager can compensate for coupling effects
between closely operating monitors. LFC allows to adjust the frequency response curve to obtain the desired low
frequency contour.
For paired X15 HiQ monitors, enter the following parameters to obtain the reference response curve of a single
enclosure:
180
-3.0
For more information about LFC, refer to the LA Network Manager Help (section: Group Control Panel) and to the
Array Morphing white paper, available on www.l-acoustics.com (Download Center).
12 X15 HiQ user manual (EN) version 5.0
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