LA4S datasheet
Christie LA4S
Line array surround speaker
Revolutionary
line array surround
The Christie® LA4S line array surround speaker combines
advanced ribbon driver technology with a unique coaxial
articulated line array design to provide greatly enhanced
clarity, dramatically reduced distortion and ultra-fast transient
response. The extremely low mass of the ribbon driver
diaphragm allows Christie LA4S to respond very quickly to
signals. This eliminates the effects of high frequency breakup
and power compression, while enabling extended high
frequency response and the accurate reproduction of the
original source material. Providing perfect timbre-matching
with our Christie LA4 and LA5 Series speakers, the Christie
LA4S is the premium solution for leading immersive audio
applications in 400± seat auditoriums.
Key features
Christie exclusive single enclosure
coaxial articulated line array design
4 x 6" ribbon drivers, plus 4 x 6.5"
paper/Kevlar mid-bass drivers
Dramatically higher RMS to peak
max SPL ratio than compression
driver systems
Extremely even coverage, typically
varying by less than 6dB throughout
entire audience area
Approximately four times
the optimal listening area
than typical systems
Enhanced voice intelligibility,
low distortion and highly
controlled dispersion
Limited five year warranty
[15.7]
399
Powerful and versatile surround effects
Front view
Featuring very wide 120° horizontal dispersion and controlled
60° vertical dispersion patterns, the Christie LA4S places
sound exactly where it is needed. It can be combined with
a subwoofer for bass management, making it ideal as a wall
surround or a front and back ceiling surround speaker for
400± seat auditoriums. Extremely versatile with a range of
applications and installation options, from being wall
or ceiling mounted to flown.
[10.6]
268
[11.3]
287
[1.7]
43
[24.0]
609
[7.5]
191
COG
[15.7]
399
[7.3]
185
Side view
Specifications
System type
Driver components
Crossover
Frequency response1
Maximum SPL2
System coverage3⁴
Sensitivity1, 1W/1m
Power handling2
Recommended amplifier power
Rated impedance
Input connectors
Enclosure
Mounting options
Accessories (optional)
Dimensions
Net weight
Warranty
1
articulated, ribbon driver line array, 2-way passive,
in a single ported enclosure
• 4 x 6" ribbon drivers with Kapton® diaphragm and Neodymium magnets
• 4 x 6.5" paper/Kevlar composite mid-bass drivers
• Linear phase, passive, symmetric crossover @ 1.5kHz, 24dB/octave
• 60Hz-20kHz @ - 6dB
• 128.5dB (AES) continuous • 140.5dB peak
• 120° horizontal dispersion • 60° vertical dispersion
• 100dB (200Hz-3kHz)
• 700W (AES) continuous • 1400W (IEC) short term
• 715-1165W (FTC) @ 3 ohms
• 3 ohms
[10.6]
[1.7]
• Screw terminal barrier strip
268
43
• Vented box alignment
• 18mm marine plywood [7.5]
191
• Heavily damped and braced
[15.7]
• Wall or ceiling mounted using
3994 x M8 points
• Flown using 2 x M10 on top and 1 x M8 on rear
• Allen Products MultiMount MM-024 (111-681207-01)
or MM-060 (111-682208-01) for wall mounting
• MM-3RDX-18 (111-683209-01) for ceiling mounting
• 3 x Allen Products RK-1C Rigging Kit 1 x Cable (111-686202-01) for flying4
• (LxWxH) 15.71 x 10.6 x 23.4" (411 x 268 x 595mm)
• 51lbs (23kg)
[11.3]
• Limited five year warranty
[8.5]
216
[11.3]
287
• Coaxial
[5.0]
127
[24.0]
609
[7.3]
185
Top view
[10.6]
268
[15.7]
399
Back view
[11.3]
287
[8.5]
216
287
SPL response averaged in 200Hz-3kHz range and scaled back to 1m.
AES refers to AES2-2012 standard. IEC refers to IEC 60268-5 standard. Max continuous SPL calculated based on sensitivity
and AES power handling. IEC short-term power tested using IEC pink noise with 9dB crest factor. The crest
factor was specifically
COG
increased to reflect real-life parameters of digital cinema sound tracks. Maximum peak SPL calculated using peak voltage during
IEC short-term power test.
3 Averaged in 500Hz-16kHz range, at -6dB
[7.3]
4 3 cables required when flown. See User Manual for details.
[24.0]
609
[5.0]
127
COG
2
185
Worldwide offices
Christie Digital Systems USA, Inc.
USA – Cypress
ph: 714 236 8610
Australia
ph: +61 (0) 7 3624 4888
Christie Digital Systems Canada Inc.
Canada – Kitchener
ph: 519 744 8005
Brazil
ph: +55 (11) 2548 4753
China (Beijing)
ph: +86 10 6561 0240
China (Shanghai)
ph: +86 21 6278 7708
Eastern Europe and
Russian Federation
ph: +36 (0) 1 47 48 100
France
ph: +33 (0) 1 41 21 44 04
Germany
ph: +49 2161 664540
India
ph: +91 (080) 6708 9999
Japan (Tokyo)
ph: 81 3 3599 7481
United Arab Emirates
ph: +971 4 3206688
Korea (Seoul)
ph: +82 2 702 1601
United Kingdom
ph: +44 (0) 118 977 8000
Republic of South Africa
ph: +27 (0)11 510 0094
Singapore
ph: +65 6877 8737
Spain
ph: +34 91 633 9990
[1.7]
43
[7.5]
191
[24.0]
easured at distances of 4m and 8m, in free field and on ground plane. Sensitivity is calculated
M
based on measured
609
Corporate offices
4 X M8
MOUNT
POINTS
COG
Independent sales
consultant offices
Italy
ph: +39 (0) 2 9902 1161
For the most current specification information, please visit www.christiedigital.com
Copyright 2015 Christie Digital Systems USA, Inc. All rights reserved. All brand names and product names are trademarks, registered trademarks
or tradenames of their respective holders. Christie Digital Systems Canada Inc.’s management system is registered to ISO 9001 and ISO 14001.
Performance specifications are typical. Due to constant research, specifications are subject to change without notice.
Printed in Canada on recycled paper. 3930 Jan 15
4 X M8
MOUNT
POINTS
[2.8]
70
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