EAW | DSA250i | RD0383 (A) DSA250i SPEC.qxp

D S A 2 5 0 i
S p e c i f i c a t i o n s
2-WAY FULL-RANGE DIGITALLY STEERABLE ARRAY
See TABULAR DATA notes for details
CONFIGURATION
Subsystem
Transducer
LF 8x 4 in cone
HF 8x 1 in dome
Operating Mode
Amplifier Channels
Self-powered 16x high efficiency
Loading
Direct radiating
Horn loaded
External Signal Proc.
None
ACOUSTICAL PERFORMANCE
Operating Range
Nominal Beawidth
78 Hz to15 kHz
Horz
Vert
120°
Digitally variable
ELECTRONIC PERFORMANCE
Analog
Amplifier Output (ea)
Input (Audio A and B):
Configuration
Nominal Sensitivity
Maximum Signal
Input Routing
Digital
A to D/ D to A
Processor
Propagation Time
28.3 V
50 W @ 16 ohm
Balanced differential
0.9 V / 1.25 dBu
For full output
12.2 V / 24 dBu
A + B, A or B, priority B over A
48 kHz, 24 bit
32 bit dual SHARC (Super Harvard Architecture Computer)
4.3 ms
INPUT SIGNAL PROCESSING
Features
Filters
• 2-Way, full-range loudspeaker for voice and music applications
• Vertical coverage pattern adjustable to fit the audience area
• Integral signal processing and amplification
• Built-in electronic driver protection
• Wall Mounting hardware included
Parametric
6 or 12 dB Lo Shelf
6 or 12 dB Hi Shelf
HPF and LPF
Compression
Threshold
Ratio
Attack (ms)
Release (ms)
Gain
Mute
Signal Delay
Meters
Input
Output
Gain Reduction
Description
The DSA250i is a unique, column-type loudspeaker for full-range
FGM (foreground music) and voice applications. It also functions
with additional DSA Series loudspeakers to provide increased
performance. For example, a DSA250i used with the DSA230
extends directivity to and increases the output at lower frequencies.
The DSA250i has the remarkable versatility of a user-adjustable,
vertical beamwidth. This is made possible because each transducer
has its own DSP (digital signal processing) and power amplifier.
Built-in networking provides for remote PC operation and control.
Intended to be flat-mounted to a wall, the user directs the DSA250i's
output from this position to the desired coverage area using the
supplied DSAPilot software. Pattern asymmetry provides similar
sound levels to both near and far listeners. Each of the two inputs
has user-adjustable EQ, delay, and compression.
DSA loudspeakers are engineered as a solution for applications
with difficult acoustics, physical mounting limitations, precise
vertical coverage requirements, and difficult aesthetic
requirements. They can replace typical horn/woofer or column-type
loudspeakers in small to medium venues. These include houses of
worship, auditoriums, theaters, concert halls, conference rooms,
transportation centers, athletic facilities, classrooms, museums,
shopping malls, and theme parks. The enclosure profile and
appearance reduces architectural impact.
Warranty: five years loudspeaker components; two years electronics.
Frequency
10 to 24000 Hz
10 to 24000 Hz
10 to 24000 Hz
10 to 24000 Hz
-40 to +24 dBu
1.2:1 to inf:1
slow (64) / med (16) / fast (2)
slow (256) / med (64) / fast (8)
-60 dB to +10 dB
on/off
300 ms maximum
-40 to +20 dBu
-30 to 0 dB
ref 0 dB = full output
0 dB to -60 dB (compression)
CONNECTIONS
Computer Network
Standard EIA-485
Optional CobraNet (requires EAW CM-1 Interface Card accessory)
Fault Supervision
Form C dry contact relay
AC Mains
Voltage / Frequency
DSA250i (115 V) 100 to 120 V / 50 to 60 Hz
DSA250i (230 V) 220 to 240 V / 50 to 60 Hz
Maximum Current
4A
4A
ORDERING DATA
Description
DSA250i White 115 V
DSA250i White 230 V
Optional Accessories
CM-1 CobraNet Interface Card
DSA Fly-Bar Kit
DSA Enclosure Connecting Kit
Part Number
0015158-00
0015158-01
0005987
0007445
0007446
COMPLIANCES
Part 15
Boost/Cut
Q
+15/-15 dB
0.25 to 64
+15/-15 dB
+15/-15 dB
12/18/24 dB/oct L-R, BW, Bessel
CM
EN 60065:2002, EN 55103-1:1997, EN 55103-2:1997, EN55103-1, EN55103-2, EN60065
C
US
Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0383 (A) DSA250i SPEC
February 2007
D S A 2 5 0 i
S p e c i f i c a t i o n s
ENCLOSURE
Material Rear: extruded aluminum, Front baffle: PVC
Finish Powder-coated white
Grille Powder-coated perforated steel
5.88
C
L
NOTES:
1. SYMBOL
INDICATES CENTER OF BALANCE.
2. WEIGHT APPROX. 84 LB.
3. SHIPPING WEIGHT APPROX. 100 LB.
INPUT PANEL
SIGNAL END
TOP
LED
2X 14°
2X 20°
50.80
26.00
GRILLE PARTIALLY SHOWN
FRONT
BACK
RIGHT SIDE
DIMENSIONS APPLY
TO BOTH SIDES
DRAWING NO.
0015158-00
0015158-01
9.32
DESCRIPTION
CABINET/FINISHED/WHITE/DSA250i/115 V
CABINET/FINISHED/WHITE/DSA250i/230 V
VOLTAGE
115 V
230 V
9.34
BOTTOM
DSA250i
INPUT PANEL
POWER END
PRODUCTION
EASTERN ACOUSTIC WORKS
NOTE: This drawing has been reduced. Do not scale.
Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0383 (A) DSA250i SPEC
February 2007
D S A 2 5 0 i
S p e c i f i c a t i o n s
DSA250 1/3 OCTAVE POLAR RESPONSES: 40° Vertical Beamwidth
315 / 400 / 500 / 630 Hz
800 / 1000 / 1250 / 1500 Hz
2000 / 2500 / 3150 / 4000 Hz
5000 / 6300 / 8000 / 10000 Hz
(brown / blue / green / red)
HORIZONTAL
VERTICAL
STEERING ANGLES
+15°
0°
-15°
-30°
-45°
Referenced to 20 m, 1/3 octave smoothing, 5° resolution, 1 dB / division
NOTE: The DSA250i’s acoustical performance varies with the steering and beamwidth settings as well as whether it is used
singly or in clusters with other DSAi loudspeakers. The above graphs are only an example of the wide range of steering possibilities.
Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0383 (A) DSA250i SPEC
February 2007
D S A 2 5 0 i
S p e c i f i c a t i o n s
INPUT PANEL
SIGNAL DIAGRAM
SIGNAL END
2-WAY SELF-POWERED
EIA-485
INPUT A USER
DSP
DSP
INPUT B
AMP
HF
USER
DSP
AC MAINS
6 ADDITIONAL
DSP/AMP/HF
POWER END
DSP
AMP
HF
DSP
AMP
LF
US
DSP
AMP
LF
F
E
E
F
6 ADDITIONAL
DSP/AMP/LF
US
LEGEND
DSP:
LF/MF/HF:
PWR AMP:
Σ:
Digital Signal Processing for EQ, limiting, and delay.
Low Frequency / Mid Frequency / High Frequency.
Power Amplifier.
Summing Amplifier
NOTES
TABULAR DATA
1.
2.
3.
4.
Measurement/Data Processing Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.
Microphone Systems: Earthworks M30; Brüel & Kjær 4133
Measurements: Dual channel FFT; length: 32 768 samples; sample rate: 48 kHz; logarithmic sine wave sweep.
Measurement System Qualification (includes all uncertainties): SPL: accuracy +/-0.2 dB @ 1 kHz, precision +/-0.5 dB 20 Hz to 20 kHz, resolution 0.05 dB; Frequency: accuracy +/-1 %,
precision +/-0.1 Hz, resolution the larger of 1.5 Hz or 1/48 octave; Time: accuracy +/-10.4 µs, precision +/-0.5 µs, resolution 10.4 µs; Angular: accuracy +/-1°, precision +/-0.5°, resolution 0.5°.
5. Environment: Measurements time-widowed and processed to eliminate room effects, approximating an anechoic environment. Data processed as anechoic or fractional space, as noted.
6. Measurement Distance: 7.46 m. Acoustic responses represent complex summation of the subsystems at 20 m. SPL is referenced to other distances using the Inverse Square Law.
7. Enclosure Orientation: For beamwidth and polar specifications, as shown in Mechanical Specification drawing.
8. Volts: Measured rms value of the test signal.
9. Watts: Per audio industry practice, “loudspeaker watts” are calculated as voltage squared divided by rated nominal impedance. Thus, these are not True Watt units of energy as defined by
International Standard.
10. SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL = 20 microPascals.
11. Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.
12. Operating Mode: User selectable configurations. Between system elements, a comma (,) = separate amplifier channels; a slash (/) = single amplifier channel. DSP = Digital Signal Processor.
IMPORTANT: To achieve the specified performance, the listed external signal processing must be used with EAW-provided settings.
13. Operating Range: Range where the processed Frequency Response stays within -10 dB SPL of the power averaged SPL within this range; measured on the geometric axis. Narrow band
dips are excepted.
14. Nominal Beamwidth: Design angle for the -6 dB SPL points, referenced to 0 dB SPL as the highest level.
15. Axial Sensitivity: Power averaged SPL over the Operating Range with an input voltage that would produce 1 W at the nominal impedance; measured with no external processing on the
geometric axis, referenced to 1 m.
16. Nominal Impedance: Selected 4, 8, or 16 ohm resistance such that the minimum impedance point is no more than 20% below this resistance over the Operating Range.
17. Accelerated Life Test: Maximum test input voltage applied with an EIA-426B defined spectrum; measured with recommended signal processing and Recommended Protection Filter.
18. Calculated Axial Output Limit: Highest average and peak SPLs possible during the Accelerated Life Test. The Peak SPL represents the 2:1 (6 dB) crest factor of the Life Test signal.
19. High Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.
GRAPHIC DATA
1. Resolution: To remove insignificant fine details, 1/12 octave cepstral smoothing was applied to acoustic frequency responses and 1/3 octave cepstral smoothing was applied to the
beamwidth and impedance data. Other graphs are plotted using raw data.
2. Frequency Responses: Variation in acoustic output level with frequency for a constant input signal. Processed: normalized to 0 dB SPL. Unprocessed inputs: 2 V (4 ohm nominal impedance),
2.83 V (8 ohm nominal impedance), or 4 V (16 ohm nominal impedance) referenced to a distance of 1 m.
3. Processor Response: The variation in output level with frequency for a constant input signal of 0.775 V = 0 dB reference.
4. Beamwidth: Average angle for each 1/3 octave frequency band where, starting from the rear of the loudspeaker, the output first reaches -6 dB SPL referenced to 0 dB SPL as the highest
level. This method means the output may drop below -6 dB SPL within the beamwidth angle.
5. Impedance: Variation in impedance magnitude, in ohms, with frequency without regard to voltage/current phase. This means the impedance values may not
be used to calculate True Watts (see 9 above).
6. Polar Data: Horizontal and vertical polar responses for each 1/3 octave frequency band 100 Hz to 16 kHz or Operating Range.
Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0383 (A) DSA250i SPEC
February 2007
D S A 2 5 0 i
S p e c i f i c a t i o n s
DSA SERIES PERFORMANCE MATRIX
Cluster
DSA230
DSA250i
DSA230 / DSA250i
DSA230 / DSA230 / DSA250i
Height (in/mm)
36.5/927
50.8/1290
87.6/2224
124.3/3158
Width (in/mm)
9.3/237
9.3/237
9.3/237
9.3/237
Depth (in/mm)
9.3/237
9.3/237
9.3/237
9.3/237
Weight (in/mm)
62/28.1
84/38.1
146/66.2
208/94.3
120
120
120
120
800 Hz to 4.5 kHz
800 Hz to 10 kHz
800 Hz to 10 kHz
800 Hz to 10 kHz
Nominal Horizontal Beamwidth
Beamwidth Range
20° NOMINAL VERTICAL BEAMWIDTH
Beamwidth Range
1 kHz to 8 kHz
1 kHz to 15 kHz
400 Hz to 15 kHz
270 Hz to 15 kHz
Frequency Range (+/- 3 dB tolerance)
90 Hz to 6.5 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
Operating Range (-10 dB frequencies)
78 Hz to 10 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
SPL Limit (avg)
116.0
117.2
123.4
126.5
SPL Limit (peak)
122.0
123.2
129.4
132.5
40° NOMINAL VERTICAL BEAMWIDTH
Beamwidth Range
500 Hz to 10 kHz
500 Hz to 15 kHz
200 Hz to 15 kHz
130 Hz to 15 kHz
Frequency Range (+/- 3 dB tolerance)
90 Hz to 6.5 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
Operating Range (-10 dB frequencies)
78 Hz to 10 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
SPL Limit (avg)
115.6
116.2
121.7
124.1
SPL Limit (peak)
121.6
122.2
127.7
130.1
60° NOMINAL VERTICAL BEAMWIDTH
Beamwidth Range
300 Hz to 10 kHz
300 Hz to 15 kHz
135 Hz to 10 kHz
90 Hz to 10 kHz
Frequency Range (+/- 3 dB tolerance)
90 Hz to 8.2 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
Operating Range (-10 dB frequencies)
78 Hz to 10 kHz
78 Hz 15 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
SPL Limit (avg)
114.2
115.5
119.9
120.8
SPL Limit (peak)
120.2
121.1
125.9
126.8
80° NOMINAL VERTICAL BEAMWIDTH
Beamwidth Range
225 Hz to 5.5 kHz
225 Hz to 10 kHz
110 Hz to 10 kHz
80 Hz to 10 kHz
Frequency Range (+/- 3 dB tolerance)
90 Hz to 8.2 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
90 Hz to 13 kHz
Operating Range (-10 dB frequencies)
78 Hz to 10 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
78 Hz to 15 kHz
SPL Limit (avg)
113.1
114.1
118.3
119.7
SPL Limit (peak)
119.1
120.1
124.3
125.7
NOTES
1. Beamwidth and Frequency data is referenced to 20 m on axis, including air losses; steering at 0 degrees.
2. Beamwith Range is where the pattern widens to more than 1.5 times nominal below the low frequency and narrows to less than 0.67 times nominal above the high frequency.
3. Avg SPL Limits are referenced to 1 m at an output equivalent to 0.5 times rated amplifier power at nominal impedance.
4. Peak SPL Limits are reference to 1 m at an output equivalent to maximum peak amplifier power at nominal impedance.
Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0383 (A) DSA250i SPEC
February 2007
Download PDF