EAW LS832 User Manual
A
C
O
U
S
T
I
C
A
L
P
E
R
F
O
R
M
A
N
C
E
P
A
R
T
N
E
R
S
H
I
P
TECHNICAL SPECIFICATIONS LS832
• Line source loudspeakers with coherent, intelligble, consistent 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 summation of the multiple drivers
• Line source coupling effects k eep vertical coverag e narr ow
throughout the vocal range
• Direct radiatin g d rivers pr ovide extr a wi d e h orizon tal coverage
• Low ceiling, hard floor – no problem
DESCRIPTION
EAW’s LS832 line sour ce loudspeak er system brings the classic column speaker up-to-date . Sophisticated frequency shading 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 maintain s a well behaved nominal vertical coverage pattern of 20° to below 630Hz. Even at 500 Hz, the
vertical pattern is still 45°. With the enclosur e baffle defining a gentle ar c, the drivers f orm a curved line source to help
prevent the verti cal pattern from collapsing in th e crossover
region.
At the same time, the drivers act as direct radiators in the
horizontal plane , giving the system an e xtra-wide 140° horizontal coverage pattern with response that meets professional 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 sign al to perf orm critical equalization functions.
APPLICATION
Like the classic column speak ers of th e ‘50s and 60’s , th e LS
Series was designed to solve speech-only installation problems in highly reverber ant spaces with low ceilings an d hard
floors. These might include small houses of worship, libraries or other civic spaces, and transportation hubs.
The 44.08-in tall, 6.25-in wide enclosure fits nicely on architectural columns and can be custom pain ted to blen d in
with any decor . Th e enclosure in cludes a compr ehensive system of 1/4”-20 threaded mounting points for easy installation.
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
EASTERN ACOUSTIC WORKS
Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 0158 8 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web http://www.eaw.com • email info@eaw.com
One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email info@eaw.com • 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
A
C
O
U
S
T
I
C
A
L
P
E
R
F
O
R
M
A
N
C
E
P
A
R
T
N
E
R
S
H
I
P
TECHNICAL SPECIFICATIONS LS832
DIMENSIONAL DRAWING ARCHITECTURAL SPECIFICATIONS
DIMENSIONAL DRAWINGS
CABINET TO BE SYMMETRICAL ABOUT CENTERLINE DESIGNATIONS.
LS832
6.25
44.08
FRONT
MOUNTING POINT 1/4-20 THREADED HOLE.
CENTER OF BALANCE.
INPUT
7.00
2.05
2.12
BACK
C
L
3.25
6.00
C
L
SIDES
3°
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
C
L
3.25
1.12
TOP/BOTTOM
510691 (D)
exp 8/24/98 shb
The two-way full range loudspeaker systems shall incorporate eight 4-in LF tr ansducers and thr ee 1-in soft dome tweeter
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 frequency shading filter set shall maximize ben eficial line source
coupling while minimizing grading lobes. An internal passive filter network shall provid e fourth order acousti cal crossover and system equalization between th e low and high fr equency 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 Soun d 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 han dle 200 Watts o f amplifier power
(AES Standard) and shall have a nominal impedance of 12
Ohms.
The loudspeaker en closure shall be rectangular in shape with
a convex arc to the front baffle. It shall be constructed of
15mm thickness void-fr ee cross-grain-laminated Balti c birch
plywood and shall employ extensive in ternal bracing. It shall
be finished in black catalyzed polyurethane. Input connectors shall be two-terminal barrier strip. A total of 6x 1/4"-20
threaded mountin g/suspen si on poin ts (1 each top, bottom,
4 back) shall be provided . The fr ont o f the lou dspeaker shall
be covered with a vinyl coated perforated steel grill.
The 2-way full range loudspeaker shall be the EAW model
LS832.
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
Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 0158 8 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web http://www.eaw.com • email info@eaw.com
A
C
O
U
S
T
I
C
A
L
P
E
R
F
O
R
M
A
N
C
E
P
A
R
T
N
E
R
S
H
I
P
FREQUENCY RESPONSE
0
)
0
PERFORMANCE SPECIFICATIONS LS832
120
LS832 Axial Response
100
dB SPL
80
B
K
60
50 100 1000 10000 2000
Frequency (Hz
INPUT IMPEDANCE
LS832 Input Impedance (Magnitude)
40
35
30
25
20
Ohms
15
10
5
B
K
0
20 100 1000 10000 2000
Frequency (Hz)
Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 0158 8 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web http://www.eaw.com • email info@eaw.com
A
C
O
U
S
T
I
C
A
L
P
E
R
F
O
R
M
A
N
C
E
P
A
R
T
N
E
R
S
H
I
P
PERFORMANCE SPECIFICATIONS LS832
0
y
BEAMWIDTH
LS832 Beamwidth vs Frequency
360
330
300
270
240
210
180
Degrees
150
120
90
60
B
30
0
200 1000 1000
K
Frequency (Hz)
Horizontal Beamwidth (1/3 Octave)
Vertical Beamwidth (1/3 Octave)
Q & DIRECTIVITY INDEX (DI)
LS832 Q and Directivity
100
10
Q
1
B
K
0.1
200 1000 10000
Horizontal Q and Directivity (1/3 Octave)
Vertical Q and Directivity (1/3 Octave)
Total Q and Directivity (1/3 Octave)
Frequency (Hz)
Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 0158 8 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web http://www.eaw.com • email info@eaw.com
100
10
1
0.1
Index
Directivit
A
C
O
U
S
T
I
C
A
L
P
E
R
F
O
R
M
A
N
C
E
P
A
R
T
N
E
R
S
H
I
P
0
)
POWER RESPONSE
120
100
dB SPL
80
PERFORMANCE SPECIFICATIONS LS832
LS832 Beamwidth Delimited Power Response
B
K
60
200 1000 10000 2000
Frequency (Hz
Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 0158 8 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web h ttp://www.eaw.com • email info@eaw.com
A
C
O
U
S
T
I
C
A
L
P
E
R
F
O
R
M
A
N
C
E
P
A
R
T
N
E
R
S
H
I
P
PERFORMANCE SPECIFICATIONS LS832
Q & DIRECTIVITY & BEAMWIDTH BY FREQUENCY
Frequency Hor Beamwidth Ver Beam width Hor Q & Dir Ver Q & Dir T ot Q & Dir
100 360 360 1.2 1.6 1.3
125 360 360 0.7 1.3 0.8
160 351 360 1.7 2.5 2.0
200 360 360 1.4 2.4 1.8
250 360 360 1.9 4.5 2.7
315 360 360 1.9 7.2 3.0
400 360 360 2.5 10.4 4.0
500 186 193 2.4 10.3 3.9
630 188 32 2.5 15.9 4.3
800 202 27 2.4 17.3 4.3
1000 186 22 3.3 24.3 5.8
1250 128 31 4.2 25 7.2
1600 125 24 4.6 37.7 8.2
2000 121 52 5.1 22.2 8.3
2500 133 62 5.1 10.8 7.0
3150 160 46 3.3 10.1 5.0
4000 143 34 2.5 15.1 4.9
5000 133 30 4.5 20.1 7.4
6300 115 21 7.6 15.1 10.1
8000 92 17 8.7 19.5 12.1
10000 87 82 9.4 25.3 13.8
12500 66 63 13.3 31.5 18.7
16000 50 54 20.8 20.7 20.8
20000 37 44 29.7 21.3 24.8
Acoustic Performance Partnership Eastern Acoustic Works LS832
One Main Street, Whitinsville MA, 0158 8 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web http://www.eaw.com • email info@eaw.com
Loading...