EAW Speaker SB528zR User Manual

S B 5 2 8 z R S p e c i f i c a t i o n s  
group · S  
DUAL 18 INCH SUBWOOFER  
See NOTES TABULAR DATA for details, half space = floor-mounted  
CONFIGURATION  
Subsystem  
Transducer  
Loading  
SUB 2x 18 in cone  
Vented  
Operating Mode  
Amplifier Channels  
External Signal Processing  
DSP w/1-way filter  
Single-amp LF1/LF2  
Dual-amp LF1, LF2  
DSP w/1-way filter  
PERFORMANCE 1  
Operating Range  
27 Hz to 147 Hz  
Nominal Beamwidth  
Horz 360°  
Vert 360°  
Axial Sensitivity (SPL)  
LF1/LF2 (whole space) 97 dB  
(half space) 103 dB  
Input Impedance (ohms)  
Nominal  
27 Hz to 147 Hz  
27 Hz to 147 Hz  
Minimum  
LF1/LF2  
4
3.9 @ 131 Hz  
7.8 @ 131 Hz (each)  
LF1, LF2 8 (each)  
Recommended High Pass Filter  
High Pass =>25 Hz, 12 dB/octave Butterworth  
Accelerated Life Test 2  
System LF1/LF2 75 V  
LF1, LF2 75 V (each)  
DESCRIPTION  
1400 W @ 4 ohm  
700 W @ 8 ohm (each)  
The SB products are EAW's premium subwoofers designed for  
the most demanding professional applications. Abroad range of  
capabilities and sizes provide the designer with selections that  
can be specifically matched to their application. Top quality  
drivers, engineered by EAW, provide the highest output and best  
sonic performance possible for a given form factor. All SB  
models are direct radiating, with optimally tuned, vented  
enclosures. SB subwoofers are the choice where the best sonic  
performance, highest reliability, and most robust physical  
construction are required.  
Transducer (AES)  
1000 W (each)  
Calculated Axial Output Limit (SPL)  
Average  
Peak  
135 dB  
141 dB  
LF1/LF2 (whole space)129 dB  
(half space) 135 dB  
ORDERING DATA  
Description  
Part Number  
997152  
SB528zR Dual 18 inch Subwoofer Black  
SB528zR Dual 18 inch Subwoofer White  
Optional Accessories  
997152-0000  
The SB528zR is a high output, large-format subwoofer system.  
This versatile, all-purpose subwoofer is designed for portable  
use where the fatter-sounding output of dual 18 inch drivers is  
desired. The SB528zR works well with most full-range  
loudspeakers in a variety of applications including: band/club  
PA, large houses of worship, large auditoriums/theaters, arenas,  
concert touring, f/x reinforcement, large dance clubs, and drum-  
fill monitoring.  
Caster Kit (set of 4 blue swivel casters)  
255027  
The SB528zR is designed to be used with today's sophisticated  
digital signal processing to optimize the LF response. EAW's MX  
Series processors are recommended for the required crossover  
and equalization.  
Six Year Warranty.  
1 To achieve specified performance, the listed external signal processing with EAW-provided settings is required.  
2 For recommendations to select power amplifier size refer to : “HOW MUCHAMPLIFIER POWER DO I NEED?” on the EAW web site.  
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: RD0229 (A) SB528zR April 2005  
Download from Www.Somanuals.com. All Manuals Search And Download.  
S B 5 2 8 z R S p e c i f i c a t i o n s  
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PERFORMANCE DATA  
See NOTES GRAPHIC DATA for details  
Frequency Response: Processed  
LF1/2 Whole Space = green  
10  
0
-10  
-20  
-30  
-40  
-50  
10  
100  
1000  
20000  
Frequency (Hz)  
Frequency Response: Digital Signal Processor  
LF = green  
Frequency Response: Unprocessed  
LF1/2 Whole Space = green  
120  
110  
100  
90  
20  
10  
0
-10  
-20  
-30  
80  
70  
60  
-40  
10  
10  
100  
1000  
20000  
100  
1000  
20000  
Frequency (Hz)  
Frequency (Hz)  
Impedance Magnitude  
LF1/2 = green LF1 or LF 2 = orange  
100  
10  
1
10  
100  
1000  
20000  
Frequency (Hz)  
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: RD0229 (A) SB528zR April 2005  
Download from Www.Somanuals.com. All Manuals Search And Download.  
S B 5 2 8 z R S p e c i f i c a t i o n s  
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INPUT PANEL  
SIGNAL DIAGRAM  
SB528zR  
1-Way, Single-Amp (LF1/LF2)  
S/N  
WHITINSVILLE, MA USA  
DSP  
EQ  
HPF  
LF  
LF  
LIECHTENSTEIN  
LIECHTENSTEIN  
AMP  
LPF  
PIN 1--...LF1--  
PIN 1+...LF1+  
PIN 2--...LF2--  
PIN 2+...LF2+  
NL4 MPR  
NL4 MPR  
1-Way, Dual-Amp (LF1, LF2)  
AMP  
LF  
LF  
DSP  
EQ  
HPF  
LPF  
AMP  
LEGEND  
DSP:  
HPF:  
LPF:  
User-supplied Digital Signal Processor.  
High Pass Filter for crossover or specified High Pass Filter.  
Low Pass Filter for crossover.  
LF/MF/HF: Low Frequency / Mid Frequency / High Frequency.  
AMP:  
XVR:  
User-supplied Power Amplifier.  
Passive LPFs, HPFs, and EQ integral to the loudspeaker.  
NOTES  
TABULAR DATA  
1. Measurement/Data Processing Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.  
2. Microphone Systems: Earthworks M30; Brüel & Kjær 4133  
3. Measurements: Dual channel FFT; length: 32 768 samples; sample rate: 48 kHz; logarithmic sine wave sweep.  
4. 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. SPLis referenced to other distances using the Inverse Square Law.  
7. Volts: Measured rms value of the test signal.  
8. 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.  
9. SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL= 20 microPascals.  
10. Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.  
11. 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.  
12. Operating Range: Range where the processed Frequency Response stays within -10 dB SPLof the power averaged SPLwithin this range; measured on the geometric axis. Narrow band  
dips are excepted.  
13. Nominal Beamwidth: Design angle for the -6 dB SPLpoints, referenced to 0 dB SPLas the highest level.  
14. Axial Sensitivity: Power averaged SPLover 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.  
15. 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.  
16. High Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.  
17. Accelerated Life Test: System: Maximum test input voltage applied with an EIA-426B defined spectrum; measured with specified signal processing; Transducer:AES2-1984 R 1997.  
18. CalculatedAxial Output Limit: Highest average and peak SPLs possible during theAccelerated Life Test. The Peak SPLrepresents the 2:1 (6 dB) crest factor of the Life Test signal.  
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. 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 8 above).  
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: RD0229 (A) SB528zR April 2005  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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