Peavey SP 118 Car Speaker User Manual


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Description
TheSP118isasubwooferdesignedto
enhancethelowendinSPandother
full-rangespeakersystems.Otheruses
includebassguitar,keyboardanddrum
monitoring.
TheenclosureisconstructedofAspen
hardwoodplywoodwithinternal
bracingcoveredinaheavy-duty,
texturedHammertex
™
covering.
Apowder-coated,perforatedsteel
grillecoversthefrontoftheenclosure.
Recessedsteelhandlesoneitherside
provideportability.Apoleguidefor
supportofapole-mounted,high-pass
enclosureisprovidedonthetopface
oftheSP118.Rubberfeetareprovided
onthebottomandalsoononesidefor
horizontaluse.
Inputsareattherearoftheenclosure,
and consist of two 1/4" jacks and
one four-pin twist lock connector. All
inputs are in parallel, with the +1 and
–1 pins of the Neutrik jack connected
to the Pro Rider
®
driver and other
jacks.
Thislowfrequencyenclosureis
comprisedofasingle18"ProRider
subwooferdriverinaventedalignment.
TheProRiderdriverdeliverssuperior
performanceduetoitsadvanced
coolingsystem,large4"voicecoil
withedge-woundaluminumwireand
Kevlar
®
compositecone.Thisdesign
providesstrongbassextensionand
highpowerhandlingtocomplementa
full-rangesoundsystem.
AstheSP118doesnotincludea
passivesubwoofercrossover,input
shouldbeelectronicallyfilteredfor
subwooferapplications.Inaddition,
forhighpoweroperation,ahigh-pass
filtersetat35to40Hzand12to24dB
Butterworthshouldbeusedtoimprove
performanceandreliability.
Frequency response
Thismeasurementisusefulin
determininghowaccuratelyagiven
unitreproducesaninputsignal.The
frequencyresponseoftheSP118is
measuredatadistanceof1meter
usinga1watt(intothenominal
impedance)swept-sineinputsignalin
ananechoicenvironment.Asshown
infigure1,theselecteddriversin
theSP118combinetogiveasmooth
frequencyresponsefrom
49Hzto300Hz.
Power handling
Therearemanydifferentapproaches
topowerhandlingratings.Peavey
ratesthisloudspeakersystem’spower
handlingusingamodifiedformofthe
AESStandard2-1984.Using40Hzto
400Hzpinknoisewithpeaksoffour
timestheRMSlevel,thisstrenuous
testsignalassurestheuserthatevery
portionofthissystemcanwithstand
today’shightechnologymusic.This
ratingiscontingentuponhavinga
minimumof3dBavailableamplifier
headroom.
Harmonic distortion
Secondandthirdharmonicdistortions
vs.frequencyareplottedinfigures3
&4fortwopowerlevels:tenpercent
(10%)ofratedinputpowerandeither
onepercent(1%)ofratedinput
poweror1Watt,whicheverisgreater.
Distortionisreadfromthegraphasthe
differencebetweenthefundamental
signal(frequencyresponse)andthe
desiredharmonic.Asanexample,a
distortioncurvethatisdown40dB
fromthefundamentalisequivalentto
1%distortion.
Architectural & engineering
specifications
Theloudspeakersystemshallhavean
operatingbandwidthof49Hzto300
Hz.Thenominaloutputlevelshallbe
98.0dBwhenmeasuredatadistance
ofonemeterwithaninputofoneWatt.
Thenominalimpedanceshallbe8.0
Ohms.
Themaximumcontinuouspower
handlingshallbe600watts,maximum
programpowerof1,200wattsanda
peakpowerinputofatleast2,400
watts,withaminimumamplifier
headroomof3dB.
Theoutsidedimensionsshallbe32.29
incheshighby20.80incheswideby
29.88inchesdeep.Theweightshallbe
107lbs.Theloudspeakersystemshall
beaPeaveymodelSP118.
3 + 2 Year Limited Warranty
NOTE:Fordetails,refertothewarranty
statement.Copiesofthisstatement
maybeobtainedbycontactingPeavey
ElectronicsCorporation,P.O.Box2898,
Meridian,Mississippi39301-2898.
SPECIFICATIONS SP
™
118
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