EAW SB528zR User manual

EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: RD0229 (A) SB528zR April 2005
SB528zR Specifications group · S
DESCRIPTION
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,engineeredbyEAW,providethehighestoutputandbest
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
constructionarerequired.
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,largehousesofworship,largeauditoriums/theaters,arenas,
concert touring, f/x reinforcement, large dance clubs, and drum-
fillmonitoring.
The SB528zR is designed to be used with today's sophisticated
digitalsignalprocessingtooptimizetheLFresponse.EAW'sMX
Series processors are recommended for the required crossover
andequalization.
SixYearWarranty.
DUAL 18 INCH SUBWOOFER
See NOTES TABULAR DATAfor details, half space = floor-mounted
CONFIGURATION
Subsystem Transducer Loading
SUB 2x18incone Vented
Operating Mode AmplifierChannels ExternalSignalProcessing
Single-amp LF1/LF2 DSPw/1-wayfilter
Dual-amp LF1,LF2 DSPw/1-wayfilter
PERFORMANCE 1
Operating Range 27Hzto147Hz
Nominal Beamwidth
Horz 360°
Vert 360°
Axial Sensitivity (SPL)
LF1/LF2(wholespace) 97dB 27Hzto147Hz
(halfspace) 103dB 27Hzto147Hz
Input Impedance (ohms)
Nominal Minimum
LF1/LF2 4 3.9@131Hz
LF1,LF2 8(each) 7.8@131Hz(each)
Recommended High Pass Filter
HighPass =>25Hz,12dB/octaveButterworth
Accelerated Life Test 2
System LF1/LF2 75V 1400W@4ohm
LF1,LF2 75V(each) 700W@8ohm(each)
Transducer(AES) 1000W(each)
CalculatedAxial Output Limit (SPL)
Average Peak
LF1/LF2(wholespace)129dB 135dB
(halfspace) 135dB 141dB
ORDERING DATA
Description Part Number
SB528zRDual 18 inch Subwoofer Black 997152
SB528zRDual 18 inch Subwoofer White 997152-0000
OptionalAccessories
Caster Kit (set of 4 blue swivel casters) 255027
1Toachieve specifiedperformance,the listedexternalsignal processingwithEAW-providedsettingsis required.
2Forrecommendations toselectpower amplifiersize refer to: “HOW MUCHAMPLIFIERPOWER DOI NEED?” onthe EAWweb site.

EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: RD0229 (A) SB528zR April 2005
SB528zR Specifications group · S
ENCLOSURE
Material Balticbirchplywood
Finish Wearresistant textured black paint
Grille Powder-coatedperforatedsteel
2X 10.75
2X 2.75
RIGHT SIDE
DIMENSIONS APPLY
TO BOTH SIDES
[1287.5]
50.69
3.00
GRILLE PARTIALLY SHOWN
FRONT
50.25
29.75
30.19
[766.8]
[755.6]
[1276.4]
20.37
4X HANDLE
[517.5]
[76.2]
[2X 161.9]
C
L
2X 6.38
NOTES:
1. SYMBOL INDICATES CENTER OF BALANCE. 2. WEIGHT APPROX. 215 lb [97.5 kg] 3. SHIPPING WEIGHT APPROX. 242 lb [109.8 kg]
TOP/BOTTOM
L
10.50
[266.7]
C
8X METAL CORNERS
24.56
[623.8]
[168.4]
6.63
41.56
4X OPTIONAL CASTER Ø 7.00 SWIVEL
INPUT
PRODUCTION
17.62
[447.5]
[153.3]
6.03
[2X 273.1]
C
L
[1055.6] [400.1]
EASTERN ACOUSTIC W ORKS
BACK
15.75
L
C[89.5]
3.50
[88.9]
3.53
SB528zR
[2X 69.8]
NOTE: Thisdrawinghas beenreduced.Donotscale.

EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: RD0229 (A) SB528zR April 2005
SB528zR Specifications group · S
PERFORMANCE DATA
See NOTES GRAPHIC DATA for details
Frequency Response: Processed
LF1/2 Whole Space = green
SPL(dB)
Frequency Response: Unprocessed
LF1/2 Whole Space = green
SPL(dB)
Frequency Response: Digital Signal Processor
LF = green
dB re 0.775 V
Impedance Magnitude
LF1/2 = green LF1 or LF 2 = orange
Ohms
120
110
100
90
80
70
60
100
10
1
10 100 1000 20000
Frequency (Hz)
10
0
-10
-20
-30
-40
-50
20
10
0
-10
-20
-30
-40
10 100 1000 20000
Frequency (Hz)
10 100 1000 20000
Frequency (Hz)
10 100 1000 20000
Frequency (Hz)

EasternAcoustic Works One Main Street Whitinsville, MA01588 tel [phone] fax [phone] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: RD0229 (A) SB528zR April 2005
SB528zR Specifications group · S
INPUT PANEL
SB528zR
WHITINSVILLE, MA USA S/N
NL4 MPR
NL4 MPR
LIECHTENSTEIN
NL4 MPR
NL4 MPR
LIECHTENSTEIN
PIN 1--...LF1--
PIN 1+...LF1+
PIN 2--...LF2--
PIN 2+...LF2+
NOTES
TABULAR DATA
1. Measurement/DataProcessingSystems: Primary-FChart: proprietaryEAWsoftware;Secondary- Brüel& Kjær2012.
2. MicrophoneSystems: EarthworksM30; Brüel&Kjær4133
3. Measurements: DualchannelFFT;length:32 768 samples;samplerate:48 kHz; logarithmicsinewavesweep.
4.Measurement System Qualification(includesalluncertainties):SPL:accuracy+/-0.2 dB@1kHz,precision +/-0.5dB20Hzto 20kHz,resolution0.05dB; Frequency:accuracy+/-1%,
precision+/-0.1Hz,resolution the largerof1.5Hzor1/48octave;Time:accuracy+/-10.4µs,precision+/-0.5µs,resolution 10.4µs;Angular: accuracy +/-1°,precision+/-0.5°,resolution0.5°.
5. Environment: Measurementstime-widowedandprocessed toeliminateroomeffects,approximatingananechoic environment.Dataprocessedasanechoicor fractionalspace,asnoted.
6. MeasurementDistance: 7.46m.Acoustic responses represent complexsummationofthesubsystems at20m.SPLisreferencedtootherdistancesusingtheInverseSquareLaw.
7. Volts: Measuredrmsvalue ofthe testsignal.
8. Watts: Per audioindustry practice,“loudspeaker watts”are calculatedas voltage squared dividedby ratednominal impedance. Thus,these arenot TrueWattunitsof energyas definedby
InternationalStandard.
9. SPL: (SoundPressureLevel) Equivalentto theaverage levelof a signalreferenced to0 dBSPL=20 microPascals.
10.Subsystem: Thisliststhe transducer(s)and theiracoustic loadingfor each passband.Sub = Subwoofer, LF =Low Frequency,MF = MidFrequency,HF =High Frequency.
11.Operating Mode: Userselectableconfigurations.Betweensystemelements,acomma(,)=separateamplifierchannels;aslash (/) = singleamplifierchannel.DSP=DigitalSignalProcessor.
IMPORTANT:Toachievethe specified performance,the listedexternal signalprocessing mustbe used withEAW-providedsettings.
12.Operating Range: Range wherethe processedFrequency Responsestayswithin -10 dBSPLofthe poweraveraged SPLwithin thisrange; measuredon thegeometric axis.Narrow band
dipsareexcepted.
13.Nominal Beamwidth: Designanglefor the-6 dBSPLpoints,referencedto0 dBSPLasthe highest level.
14.Axial Sensitivity: Power averagedSPLoverthe Operating Rangewith aninput voltagethat wouldproduce 1W at thenominal impedance;measured withno externalprocessing onthe
geometricaxis,referenced to1 m.
15.Nominal Impedance: Selected 4,8, or16 ohmresistancesuch that theminimum impedancepoint isno morethan 20%below thisresistanceover theOperating Range.
16.High Pass Filter: Thishelpsprotect theloudspeaker fromexcessive input signallevels atfrequencies belowthe OperatingRange.
17.Accelerated Life Test: System:Maximum test inputvoltageapplied withan EIA-426Bdefined spectrum;measured with specifiedsignal processing;Transducer:AES2-1984 R1997.
18.CalculatedAxial OutputLimit: Highest averageand peakSPLs possibleduring theAccelerated LifeTest. The Peak SPLrepresentsthe2:1(6 dB)crest factor ofthe LifeTestsignal.
GRAPHICDATA
1.Resolution:Toremoveinsignificant finedetails,1/12 octavecepstralsmoothing was appliedto acousticfrequency responsesand 1/3octave cepstral smoothing wasapplied tothe
beamwidthandimpedancedata. Othergraphs areplotted usingraw data.
2.Frequency Responses: Variationinacousticoutputlevelwithfrequencyforaconstantinputsignal.Processed:normalizedto 0 dB SPL.Unprocessedinputs:2V(4ohmnominalimpedance),
2.83V(8 ohmnominal impedance),or 4V (16 ohmnominal impedance)referenced toa distanceof 1 m.
3.Processor Response: The variationin output levelwith frequencyfor aconstant input signalof 0.775V =0 dBreference.
4.Impedance: Variationin impedance magnitude,in ohms,with frequencywithout regardto voltage/currentphase.Thismeans theimpedance valuesmay not
beusedto calculateTrueWatts(see 8above).
DSP
EQ
HPF
LPF
1-Way, Single-Amp (LF1/LF2)
LF
AMP
LF
DSP
EQ
HPF
LPF
AMP
1-Way, Dual-Amp (LF1, LF2)
LF
AMP LF
SIGNAL DIAGRAM
LEGEND
DSP: User-supplied Digital Signal Processor.
HPF: High Pass Filter for crossover or specified High Pass Filter.
LPF: Low Pass Filter for crossover.
LF/MF/HF: Low Frequency / Mid Frequency / High Frequency.
AMP: User-supplied PowerAmplifier.
XVR: Passive LPFs, HPFs, and EQ integral to the loudspeaker.