EAW SB528zP 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: RD0313 (A) SB528zP April 2005
SB528zP Specifications group · M
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 SB528zP is a high output, large-format subwoofer system.
Thisversatile, all-purposesubwoofer isdesigned for permanent
installation where the fatter-sounding output of dual 18 inch
drivers is desired. The SB528zPworks well with most full-range
loudspeakersin a varietyof applications including:largehouses
of worship, large auditoriums/theaters, f/x reinforcement,
cinemas,andlarge danceclubs.
The SB528zP 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 DATA for 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
SB528zPDual18inchSubwoofer Black 997150
SB528zPDual18inchSubwoofer White 997150-0000
SB528zPDual18inchSubwoofer Black WP 997151
OptionalAccessories
3/8-16 Forged Shoulder Eyebolt 104001
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: RD0313 (A) SB528zP April 2005
SB528zP Specifications group · M
ENCLOSURE
Material Balticbirchplywood
Finish Wearresistant textured black paint
Grille Powder-coatedperforatedsteel
RIGHT SIDE
DIMENSIONS APPLY TO
BOTH SIDES
[49.5]
(1.95)
50.25
[1276.4]
GRILLE PARTIALLY SHOWN
FRONT
29.75
[755.6] [656.3]
25.84
C
L
[1182.9]
TOP/BOTTOM
46.57
NOTES:
1. SYMBOL INDICATES MOUNTING POINT,
3/8-16 THREADED HOLE (PI ANGLE).
2. SYMBOL INDICATES CENTER OF BALANCE. 3. WEIGHT APPROX. 220 lbs [99.8 kgs] 4.SHIPPING WEIGHT APPROX. 240 lbs [108.9 kgs]
10.50
(1.84)
[46.7]
[623.8]
[266.7]
24.56
CC
LL
[91.9]
[449.3]
3.62
17.69
[101.6]
4.00
4.75
15.25
BACK
PRODUCTION
[387.4]
EASTERN ACOUSTIC W ORKS
5.00
INPUT
[127.0]
L
C
[120.6]
SB528zP
NOTES: Thisdrawinghas beenreduced.Donotscale.
ForWPversion, add0.25 in/6.4mm tothe outside dimensions =0.125in/ 3.2 mmallaround.

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: RD0313 (A) SB528zP April 2005
SB528zP Specifications group · M
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: RD0313 (A) SB528zP April 2005
SB528zP Specifications group · M
INPUT PANEL
WHITINSVILLE, MA USA S/N
-- +-- +
-- +-- +
LF1 LF2
LF1 LF2
LOOP THRU
SB528zP
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.