EAW LS832 User manual

Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 01588 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • Web http://www.eaw.com • email [e-mail]
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TECHNICAL SPECIFICATIONS LS832
EASTERN ACOUSTIC WORKS
One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email [email protected] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB# LS832-888139 (A)/2 pp/2/1/99 • Printed In USA
DESCRIPTIVE DATA
Configuration 2-way, Full Range
Powering Passive (LF/HF Crossover)
LF Subsystem 8x 4-in Woofer
HF Subsystem 3x 1-inSoft Dome Tweeter
Coverage Angles (h°x v°) 140 x 20
Cabinet Type (shape) Rectangular
Enclosure Materials Baltic Birch Plywood
Finish Black Polyurethane
Connectors 2-Terminal Barrier Strip
Suspension Hardware 6 1/4”-20 Threaded Mounting/
Suspension Points (1 each Top,
Bottom, 4 Back)
Grill Vinyl Coated Perforated Steel
Options FC142 Forged Shoulder Eyebolt
Dimensions inches millimeters
Height 44.08 111:
Width 6.25 159
Depth (Max) 6.00 152
Depth (Top) 5.25 133
Depth (Bottom) 5.25 133
Weights pounds kilograms
Net Weight 30 13.7
Shipping Weight 35 15.9
• Line source loudspeakers with coherent, intelligble, con-
sistent coverage from 200 Hz to 20 kHz
• System includes 8x 4-in woofers and 3x 1-in soft dome
tweeters
• Sophisticated frequency shading produces coherent sum-
mation of the multiple drivers
• Line source coupling effects keep vertical coverage narrow
throughout the vocal range
• Direct radiating drivers provide extra wide horizontal cov-
erage
• Low ceiling, hard floor – no problem
DESCRIPTION
EAW’s LS832 line source loudspeaker system brings the clas-
sic column speaker up-to-date. Sophisticated frequency shad-
ing integrates the 8x 4-in woofers and 3x 1-in soft dome
tweeters, maximizing the benefits of line source coupling
while eliminating grading lobes.
The system maintains a well behaved nominal vertical cov-
erage pattern of 20°to below 630Hz. Even at 500 Hz, the
vertical pattern is still 45°. With the enclosure baffle defin-
ing a gentle arc, the drivers form a curved line source to help
prevent the vertical pattern from collapsing in the crossover
region.
At the same time, the drivers act as direct radiators in the
horizontal plane, giving the system an extra-wide 140°hori-
zontal coverage pattern with response that meets profes-
sional standards for fidelity and intelligibility.
The internal passive crossover/filter network uses complex,
asymmetrical slopes to integrate the subsystems and goes
beyond merely dividing the signal to perform critical equal-
ization functions.
APPLICATION
Like the classic column speakers of the ‘50s and 60’s, the LS
Series was designed to solve speech-only installation prob-
lems in highly reverberant spaces with low ceilings and hard
floors. These might include small houses of worship, librar-
ies or other civic spaces, and transportation hubs.
The 44.08-in tall, 6.25-in wide enclosure fits nicely on ar-
chitectural columns and can be custom painted to blend in
with any decor. The enclosure includes a comprehensive sys-
tem of 1/4”-20 threaded mounting points for easy installa-
tion.

Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 01588 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • Web http://www.eaw.com • email [e-mail]
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TECHNICAL SPECIFICATIONS LS832
DIMENSIONAL DRAWINGS
DIMENSIONAL DRAWING ARCHITECTURAL SPECIFICATIONS
The two-way full range loudspeaker systems shall incorpo-
rateeight 4-inLF transducers and three 1-in soft dometweeter
HF transducer.
All eleven drivers shall be mounted in a vertical column to
create a line source. The LF drivers shall be mounted four
each above and below the three HF drivers. An internal fre-
quency shading filter set shall maximize beneficial line source
coupling while minimizing grading lobes. An internal pas-
sive filter network shall provide fourth order acoustical cross-
over and system equalization between the low and high fre-
quency sections.
System frequency response shall vary no more than ±3 dB
from 200 Hz to 20 kHz measured on axis. The system shall
produce a Sound Pressure Level (SPL) of 97 dB SPL on axis at
1 meter with a power input of 1 Watt, and shall be capable
of producing a peak output of 126.0 dB SPL on axis at 1
meter. The system shall handle 200 Watts of amplifier power
(AES Standard) and shall have a nominal impedance of 12
Ohms.
The loudspeaker enclosure shall be rectangular in shape with
a convex arc to the front baffle. It shall be constructed of
15mm thickness void-free cross-grain-laminated Baltic birch
plywood and shall employ extensive internal bracing. It shall
be finished in black catalyzed polyurethane. Input connec-
tors shall be two-terminal barrier strip. A total of 6x 1/4"-20
threaded mounting/suspension points (1 each top, bottom,
4 back) shall be provided. The front of the loudspeaker shall
be covered with a vinyl coated perforated steel grill.
The 2-way full range loudspeaker shall be the EAW model
LS832.
SERVICE ITEMS
LF: Complete Cone Driver
EAW Part No. 804082
HF: Complete Compression Driver/Tweeter
EAW Part No. 805015
Filter/Crossover Network
Complete Assembly: EAW Part No. 225396
NOMINAL DATA
Frequency Response (1 Watt @ 1m)
±3 dB 200 Hz to 20 kHz
-10 dB 100Hz
Axial Sensitivity (dB SPL, 1 Watt @ 1m)
Full Range 97
Impedance (Ohms)
Full Range 12
Power Handling, AES Standard (Watts)
Full Range 200
Calculated Maximum Output (dB SPL)
Full Range Peak 126.0
Full Range Long Term 120.0
L
C
L
C
INPUT
L
C
7.00
6.25
3.25
TOP/BOTTOM
FRONT BACK
2.12
3.25
1.12
44.08
3°
SIDES
6.00
2.05
MOUNTING POINT 1/4-20 THREADED HOLE.
CENTER OF BALANCE.
510691 (D)
exp 8/24/98 shb
LS832 CABINET TO BE SYMMETRICAL ABOUT CENTERLINE DESIGNATIONS.