NHT Car Speaker SW 10 User Manual

Users M anual  
M odel  
SW 10 ll SW 12  
Powered Subwoofer  
Thank you foryourpurchase ofthe NHT  
SW 10llorSW 12poweredsubwoofer.  
istorememberthatlow frequenciesproducesoundswith  
long wavelengths,which interactin complexwayswith  
room boundaries,such a walls and corners,and other  
largeobjectsaswell.  
Like allNHT loudspeakers,the SW 10 lland SW 12's  
developmenthas been guided by the study ofhuman  
hearing,itsdesignrigorouslytested,anditscomponents  
optimizedto deliverclean,clearmusicalsound.  
Placingthesubwooferneartoaroom boundarywilltend  
to increase its apparentbass output,butmayresultin  
"boomy"or"muddy"sound.Conversely,placingitfarther  
away from room boundaries willtend to decrease its  
apparent bass output, but may result in improved  
articulationandclarity.  
Since the quality ofyourspeakers is one ofthe most  
importantfactorsinmaximizingthesoundyou'llgetfrom  
yourmusic and home theatersystem,we're sure that  
you'llfind yourpurchase ofthe SW 10 lland SW 12 a  
goodinvestment,andinviteyourcomments.  
W hen possible, place the subwoofer in the same  
horizontalplane and along the same wallas the main  
speakers.  
Ifyou find yourexperience with the SW 10 lland SW 12  
assatisfyingaswebelieveyouwill,andwishtoenjoyits  
highqualitysoundthroughyourentiresystem,you'llfind  
information aboutothersonically matched NHT Super  
Seriesloudspeakersonthebackofthismanual.  
Andsincesmallchangesinsubwooferpositioncanhave  
a significanteffecton sound,experimenting with the  
effectsofdifferentplacementsinyourownlistening/view-  
ingroom isthekeytofindingthesoundyoulike best.  
Background  
SW 10llandSW 12Features& Controls  
The NHT SW 10 lland SW 12 Powered Subwooferis a  
compact,versatile and powerfulamplified subwoofer  
designedtoprovidelow frequencyreinforcementforhigh  
performanceaudioandhometheatersystems.  
Volume:Thiscontrolallowsyoutoadjustthegainofthe  
Subwooferrelative totherestofyoursystem. Manylis-  
tenersmakethemistakeofsettingsubwooferstooloud,  
which can cause excess bloatand loss ofdetailand  
musicality.Aproperlycalibratedsubwooferblendsinwith  
the speakers and does notcallattention to itself. To  
properlysetvolume:  
TheSW 10llandSW 12features:  
line-levelandspeaker-levelinputs,for connectionwith  
alltypesofreceiversorotheraudio components  
•TurndownthevolumecontrolontheSW 10llorSW12  
toitslowestposition(counter-clockwise).  
independentgain,phaseandlow passfiltercontrols  
• Turn on youraudio system,including the SW 10 llor  
SW 12.Playsome music you are familiarwith and set  
yourreceiver/preamplifiervolume to a comfortable lis-  
teninglevel.  
•boundarycontrolforadjustingsystem soundforvarious  
room placement  
Please take a few minutesto read through thisowner's  
manualbeforesettingupyourspeakers;thisinformation  
willhelpyougetthemostoutofthem.Also,pleasekeep  
the SW 10 llorSw12s packaging to use in case you  
moveor transportthem.  
•SlowlyincreasethevolumeoftheSW 10llorSW 12,lis-  
tening forproperfrequency balance.W hen balanced,  
youwillhearimprovedbassextension,butnotbeaware  
thatitis comingfrom thesubwoofer.  
Ifyou have questionsatanytime during setup oruse,  
feel free to callyour NHT dealer or our Toll-Free  
CustomerHotlineat1-800-NHT-9993.  
From this point on, the volume control on your  
receiver/preamplifierwillcontrolthe overallvolume of  
yoursystem,includingthesubwoofer.  
The Boundary EQ:This is a feature unique to NHT  
Evolution products. Reflective boundaries (such as  
walls)reinforce a speakers bass output(3dB fortwo  
walls,6dB fora corner)ifthe subwooferis placed near  
them. Conversely,placingasubwooferoutintheroom  
resultsinarelativedecreaseinbassoutput. Boundary  
reinforcementmaylead to low frequencyresponse that  
Placement  
Note:To preventthe SW 10 lland SW 12 subwoofer  
amplifierfrom overheating,always be sure to provide  
adequatespaceforproperventilation.Donotplacethe  
subwoofer directlyagainstthewalloranyothersurface.  
Thekeytoplacingyoursubwooferforoptimalenjoyment  
is uneven. Som e frequencies willsound exaggerated  
relative to others,orthe subwooferwillsound thin and  
lack impact. The Boundary EQ controlallows you to  
compensate forthe effects ofroom boundaries on the  
frequencyresponse  
Two tipsonusingtheLow PassFilter:  
Asastarting point,setLow PassFilterto the 1 oclock  
position.Thiswillresultinan80Hzlow pass.Astheset-  
ting is typicalformostDolbyDigital/DTS applications.  
Note:TheLFE inputbypassestheadjustable12dB Low  
PassFilter.  
ofthe subwoofer. Adjusting the controlenablesyou to  
achieve smooth low frequency outputfrom the sub-  
wooferregardlessofitslocationinyourroom.  
See the Fine-Tuning section for further adjustment  
guidelines.  
ThefollowingdiagramsshowninFig.1show thecorre-  
lationbetweensubwooferplacementandBoundaryEQ.  
These diagrams are guidelines only. Your room  
acousticsand personaltasteswillultimately dictate the  
finalsetting.  
SUBWOOFER PHASE: This switch sets the phase of  
thesubwooferateitherthe0°position(normalphase)or  
the 180° position (reverse phase) to achieve the  
smoothestpossiblebassresponseinyoursystem.  
Thisphase-reversingoptionisimportantbecauseifbass  
frequenciescomefrom boththesubwooferandthemain  
speakers,peaksanddipsinthefrequencyresponsecan  
occuratthelisteningposition.Inthesecases,reversing  
thesubwooferphasecanimproveblendingandbalance.  
Fig.1  
Boundary  
+3dB  
Half  
0
Space  
-3dB  
To properlysettheSubwooferPhase:  
•Playfamiliarmusic,reversingphasesettings.Andlisten  
from yourusualposition.  
•Avoidevaluatingwhilestandingabovethesubwooferor  
amplifier; sound at the listening position willbe  
significantlydifferent.  
Boundary  
Quarter/  
Half  
Space  
+3dB  
0
-3dB  
•Thecorrectsettingistheoneinwhich thebassisthe  
loudestatthelisteningposition.  
POWER MODE: This feature automatically switches  
yourSW 10 llorSW 12 into minimum-powermode (ie,  
sleep)wheneverno signalis presentfor20 minutes.  
W henasignalisreceived,itimmediatelyturnsonagain.  
AsAUTOMode isautomatic,itrequiresno adjustment,  
noristhereaneedtoturntheSW 10llorSW 12onand  
offevery time itis used.W hen in ON Mode,the sub-  
wooferisalwayson.  
Boundary  
Half/  
Whole  
Space  
+3dB  
0
-3dB  
LOW PASS FILTER:Thiscontroldeterminestheupper-  
limit frequency the subwoofer willreproduce. For  
example, setting the filter at 100Hz willcause the  
subwooferto reproduce only frequenciesbelow 100Hz.  
The Low Pass Filteris continuously variable between  
40Hz (low bass) and 180Hz (upper bass), to  
accommodatedifferentspeakers.  
9
8
7
4
ConnectingTheSW 10IIOR SW12  
3
5
Line  
Input  
LFE  
Low Pass  
Filter  
Volume  
I
n
L
Caution:Before connecting the SW 10IIOR SW 12 to  
youraudio system,itisimportanttounplugorturnoff  
allAC power connections to connected components  
such asreceivers,amplifiers,preamplifiers,andproces-  
sors. Do notplug in orconnectthe SW 10IIOR SW12  
subwoofertoAC poweruntilallconnectionshavebeen  
made.  
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
0
Auto  
-3dB  
+
L
-
-
R
+
6
1
2
Green  
-
On  
Standby  
Protect  
Amber  
-
Red  
On  
-
10  
11  
Power  
Off  
Powered  
Subwoofer  
IntegratingtheSW 10IIorSW 12intoyoursurroundsys-  
tem is simple and straightforward when using this con-  
nection method. Your AV Receiver willcontrolall  
crossoverfunctionsandtheSW 10IIorSW 12willcontrol  
Subwoofergain,phaseandboundaryequalization.  
T3.0AL 250V  
For 115  
V
Input Voltage  
115  
T2.0AL 250V  
For 230V  
115V 60Hz  
230V 50Hz~  
300W  
/
12  
CAUTION: FOR CONTINUED PROTECTION AGAINST  
FIRE, REPLACE ONLY WITH SAME TYPE 250V FUSE  
WARNING:  
TO REDUCE THE RISK OF FIRE OR ELECTRIC  
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.  
CONFORMS TO  
ULSTD.6500  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
CERTIFIED TO  
CAN/CSA  
STD.E60065  
2001228  
WARNING: SHOCK HAZARD-DO NOT OPEN.  
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.  
ConnecttheSubwoofer/LFEOutputonyourAVReceiver  
13  
totheLFE IN onthebackoftheSW 10IIorSW 12.(Fig.  
2)  
BackofSubwoofer(refertodiagram above)  
Main Speakers  
Reciever  
(1)PowerMode-LeavesSubwooferinpermanantlyon  
(ON),orputsthesubwooferinautomaticstandbymode  
(AUTO).  
SPEAKER OUTPUTS  
LFE  
/
Sub  
L
R
+
(2)PowerIndicator-The lightis green when the sub-  
wooferison.Thelightisamberwhenthesubwooferisin  
stand-bymode.Thelightisredwhenthesubwooferisin  
protection.  
SW10 / SW12  
Back of Subwoofer  
(3)VolumeControl-Adjusts the loudnessofthe sub-  
wooferindependentlyofthemainspeakers.  
Line  
Input  
LFE  
Low Pass  
Filter  
Volume  
I
n
L
(4)Low-Pass Filter-Continuously variable low-pass  
crossovercontrol.  
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
0
Auto  
-3dB  
Fig.2  
+
L
-
-
R
+
(5)BoundarySwitch -Selects response mode ofsub-  
woofer,dependingonplacement.  
(6)SubwooferPhase Selector-2-position selectable  
phasecontrolforsubwoofer.(0-180)  
In the eventyourreceiverorpre-amp doesnothave a  
LFE orSubwooferoutputthe SW 10II/SW 12 has two  
additionalconnectionmethods:  
(7)LineInput-Low levelRCAinputjacksforL/R signals  
(8)LFEIn/Out-Low levelRCAinputjackforLFEorsub-  
woofersignal.Outisan unbuffered passthrough used  
formultiplesubwoofers.  
1)LineLevel  
Useif:  
(9)HiLevelInput-Speakerlevelinputconnector.  
(10)PowerSwitch -Turnstheunitonandoff  
(11)FuseHolder-locationoftheuserservicablefuse  
YouhaveanamporreceiverwithPre-Outjacksbutno  
LFE/Subwooferjacks.  
To connectfora Line Levelsignal(Fig.3),keep your  
main speakers connected as usual,butuse RCA line-  
levelcablestoconnectasfollows:  
(12)PowerInlet-ForuniversalAC lineinputconnection  
(13)InputVoltage Switch -Selects 115 VAC or230  
VAC mainsvoltage.  
PreampswithLineOutjacks:connectonepairofLine  
OutcablestoyourmainamptopoweryourmainL& R  
speakers,and a second pairto the SW 10IIOR SW12  
LINELEVELINPUT.Ifyourpreamphasonlyonepairof  
Line Outjacks,you can use a pairof"Y"connector  
cords,availablethroughyourNHTdealer.  
component's speaker outputterminals to the L & R  
speakers,and a second pairfrom the same outputter-  
minalstotheSW 10IIOR SW 12'sHigh-Levelinput.The  
SW 10IIOR SW 12'sinputdoesnotpresentasignificant  
loadtothereceiver,andwillnotcompromiseitsoutputto  
theL&R speakers. Ifyoufindthatyourreceiverwillnot  
accommodatemorethanonecableperoutputterminal,  
check with yourNHT dealerforalternative methods of  
connection.  
Main Speakers  
Reciever  
SPEAKER OUTPUTS  
Pre Out  
L
R
L
+
R
Main Speakers  
Reciever  
SPEAKER OUTPUT  
LEFT  
SPEAKER OUTPUT  
RIGHT  
+
+
SW10 / SW12  
Back of Subwoofer  
Line  
Input  
LFE  
Low Pass  
Filter  
Volume  
I
n
L
SW10 / SW12  
Back of Subwoofer  
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
0
Auto  
-3dB  
Fig.3  
Line  
Input  
+
L
-
-
R
+
LFE  
Low Pass  
Filter  
Volume  
I
n
L
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
Amps and receivers with Pre-Outjacks:connectthe  
SW 10IIOR SW 12from thePre-OutintotheSW 10IIOR  
SW 12'sLineInput.  
0
Auto  
-3dB  
Fig.4  
+
L
-
-
R
+
2)Hi-Level  
Useif:  
With allsignalconnections complete,itis now time to  
apply AC power.Plug the powerchord into the power  
inletinthebackofthesubwoofer,plugtheotherendinto  
into the walloutletand switch the subwooferspowerto  
theON position.  
Yourreceiverhas no Pre OutorSubwoofer/LFE Out  
jacks  
ToconnectforaHigh-Levelsignal(Fig.4),usetwoaddi-  
tionalpairsofspeakercables,andconnectasfollows:  
ForampsandreceiverswithseparateA andB speak-  
eroutputs,connectonepairofspeakercablesfrom your  
receiver'sSpeakerA outputstoyourmainL& R speak-  
ers,and a second pairfrom yourreceiver'sSpeakerB  
outputstotheSW 10IIOR SW 12'sHigh-LevelInput.Use  
thismethodonlyifbothA&Bspeakeroutputscanoper-  
atesimultaneously.  
Forampsand receivers with onlyone setofspeaker  
outputterminals,simplyfeedthesamesignal,inparallel,  
to both yourmain L & R speakersand the SW 10IIOR  
SW 12. Connectonepairofspeakercablesfrom your  
The frequencychartbelow lists some termscommonly  
used to describe different bands of the frequency  
spectrum. Listentoyoursystem andmakeadjustments  
to achieve a seamless blend between your main  
speakersandtheSW 10llorSW 12.Fourcommonprob-  
lemsareoutlinedbelow.Follow theflow charttocorrect  
these.Seetheglossaryforanytermsyouareunfamiliar  
with.  
FineTuningtheSubwoofer  
The key to good subwoofer /speaker integration is  
repeated listening,followed by making smallre-adjust-  
ments ofthe subwoofercontrols.The mostimportant  
basstuningfunctionsyouwillcontrolaretheLOW -PASS  
FILTER,followed by the VOLUME CONTROL settings  
andthenPHASE SELECTOR.  
FrequencyChart  
Low Bass MidBass UpperBass LowerMid Mid UpperMid  
High  
Below 50Hz  
50Hz-100Hz  
100Hz-180Hz  
180Hz-300Hz 300Hz-700Hz  
700Hz-3K  
3K andabove  
Fine Tuning Flow Chart  
"Boomy"  
Too Much  
Mid / Upper  
Bass  
Lacks  
Mid / Upper Bass:  
Lean But With  
Weight  
Lacks  
Low  
Bass  
Excessive  
Low  
Bass  
Weight  
Weight  
Decrease  
Boundary  
EQ  
Adjust  
Subwoofer  
Phase  
Adjust  
Subwoofer  
Phase  
Adjust  
Subwoofer  
Phase  
0-90  
(Continuously  
Add)  
0-90  
(Continuously  
Add)  
Switch  
0-180  
Move  
Subwoofer  
Farther  
FromWall  
Increase  
Boundary  
EQ  
Lower  
Low Pass  
X-Over  
If this makes  
it worse,  
try  
If the sound  
improves  
Raise  
Low-Pass  
Setting  
Listen  
Frequency  
Move  
Subwoofer  
Closer to  
Wall  
Lower  
Subwoofer  
Volume  
Adjust  
Subwoofer  
Volume  
Adjust  
Subwoofer  
Volume  
Listen  
Adjust  
Subwoofer  
Phase  
Listen  
Listen  
Listen  
appropriatetype.  
Operation  
reinstallthefuseholder  
WerecommendthattheSW 10llorSW 12powerbeleft  
on,whichwillallow thebuilt-inAutoModefeaturetodis-  
ablethesubwooferwhennotinuse.  
Always replace the fuse with one ofthe exactsame  
specifications.  
Everyspeaker,haslimits,andit'simportanttolistenfor  
them.Speakerdamagemostoftenresultsnotfrom brief  
loudmusicalpeaks,butfrom sustainedhighvolumelev-  
SW 10ll:  
Forsystemsoperatingat115volts,useonlya5x20mm,  
T3A,250-voltslow-blow fuse.  
els in some orallfrequencies. Forthis  
reason,  
extreme volume settingsand excessive bass,treble or  
equalizerboostsarenotrecommended.  
Forsystemsoperatingat230volts,useonlya5x20mm,  
T2.0A,250-voltslow-blow fuse.  
Ifyouhearunusualdistortionorbreakup,ornotice heat  
coming from the woofer,decrease volume immediately,  
neutralize any excess bass,treble orequalizerboosts,  
andavoidsettinganycontrolstosimilarextremesagain.  
SW 12:  
Forsystemsoperatingat115volts,useonlya5x20mm,  
T5A,250-voltslow-blow fuse.  
Maintenance  
Forsystemsoperatingat230volts,useonlya5x20mm,  
T2.5A,250-voltslow-blow fuse.  
YourSW 10llandSW 12isdesignedforyearsofusewith  
noorminimalmaintenance,aslongasyouavoidexpos-  
ing itto directsunlight,high temperatures,ormoisture.  
Cleancabinets,whennecessary,usingadampclothor  
a mild,non-abrasive cleaner;to clean grilles,remove  
from speakerand use a softbrush ora vacuum on its  
lowestsetting. Donotattempttocleantheactualdriv-  
er.  
Troubleshooting  
Ifthe SW 10 llorSW 12 fails to operate atallwhen the  
PowerSwitch isturnedon,thoroughlycheckthepower  
cord,inputandoutputconnections  
Ifthe SW 10 llorSW 12 turnson butthe LED indicator  
failstoilluminate,mis-wiringorapowersurgemayhave  
causedtheprotectionfusetoblow.Replaceitwithoneof  
correcttypeandvalue.  
9.8ChangingtheLineVoltageSetting  
TheSW 10llandSW 12weredesignedtooperateontwo  
linevoltagesettings,115VAC and230VAC.Intheevent  
thatitis necessary to change the line voltage setting,  
begin by turning the powerswitch to the offposition.  
Removealltheconnectionsfrom theamplifier,including  
the detachable powercord. Using a flatblade screw-  
driver,slide the switch to the correctposition. Use the  
115VAC position for110 to 120 VAC,and the 230VAC  
positionfor220to240VAC. Nextyouwilllikelyneeda  
powercordthatfitstheAC receptacleandyouwillneed  
toreplacethefuse(see"ChangingtheFuse"below)  
IftheSW 10llorSW 12turnsonbutitsstatusLED stays  
red,the unitisgone into protectmode,which could be  
caused by incorrectwiring,shortcircuits,orexcessive  
volume.TurnoffthePowerSwitch onthesubwooferfor  
two ormore seconds to reset,and double check all  
speakercablestobesurethatnosmallmetalstrandsare  
shortingtheterminals.  
Ifthesestepsdon'trestoretheSW 10llorSW 12tooper-  
ation,contactyourlocalAuthorizedNHTDealerorNHT  
forassistance.  
ChangingtheFuse  
Satisfaction  
TheSW 10llandSW 12amplifier'sfuseisuser-servicea-  
ble.  
Yoursatisfaction with yournew NHT SW 10 llorSW12  
Subwooferisimportanttous. Pleasenotethematched  
productsandaccessoriesweprovideforthem,andyour  
warranty,printedonthebackofthismanual.Ifyouhave  
anyquestionsregardingyourspeakers'use,feelfreeto  
callNHT at1-800-NHT-9993. Enjoyyourlistening and  
viewing!  
To replaceit:  
turnthepowerOFF  
unplugthepowercord  
removethefuseholdercover(abovetothepowerinlet)  
withaflatbladescrewdriver  
removethefusefrom theholderandreplaceitwiththe  
the back ofa receiver,integrated amplifierorpower  
amplifier.  
Glossary  
Active:Useselectricalpower.  
Midrange:Thefrequencyspaninthemiddleoftheaudio  
range,roughly180Hz-3000Hz. Alsousedtodescribe  
thedriverthatreproducesthesefrequencies.  
Ohm:Aunitofelectricalresistance.Thatwhichopposes  
anelectriccurrentinaconductor.Inaudio,ameasureof  
theloadpresentedbyadevice toanelectricalsource.  
Out-of-Phase:The polarity ofan audio signalwhen  
connectedasfollows:(+)to(-)and(-)to(+).  
Passive:Usesnoelectricalpower.  
Amplifier:An electronicdevice thatincreasesthe cur-  
rentand/orvoltage ofa signal,providing powerto the  
loudspeakers (i.e.poweramplifier,integrated amplifier,  
receiver).  
Bass:The range ofaudio frequencies below 180Hz,  
characterizedbylow pitch.  
Crossover:An electronic circuitthatdivides an audio  
signalintodifferentfrequencyranges.  
Distortion:Anydeviationfrom theoriginalsignal.  
Driver:Themovingpartofaloudspeaker,whichradiates  
soundenergy.  
Phase:Anexpressionoftherelativepolaritiesoftwosig-  
nals.  
PowerHandling:Theabilityofaloudspeakertooperate  
withoutlargeincreasesindistortionwhengivenvarying  
amountsofinputpower.  
Dynamics:Variationsinloudnessofsound.  
Frequency:A rate ofvibration,which corresponds to  
musicalpitch,expressedinHertz(Hz).  
Preamplifier:An electronicdevice thatselects sources  
andpassesline-levelsignalstoanamplifier.  
Pre-Out:A preampline-levelRCA outputonthebackof  
areceiver,integratedamplifierorpreamplifier.  
Receiver:A preamplifier,amplifierand tunerbuiltinto  
onechassis.  
FullRange: A signalencompassing the entire audible  
frequencyspectrum.  
Hertz(Hz):Aunitequaltoonecyclepersecond,usedto  
measurethefrequencyofasignalorsound.  
High-PassFilter:A filterthatpassesonlyhighfrequen-  
ciesabovealowerlimit.  
Satellite:FrontL & R speakerswhen used with a sub-  
woofer.Also referredtoas"m ainspeakers".  
Sensitivity:A ratioofvoltageacrossthespeakerloadto  
theacousticpoweroutput,measuredindecibels.  
Sub Out:An line leveloutputforconnection to a sub-  
wooferorsubwoofersignalprocessor.  
Impedance:A measureofthetotaloppositiontocurrent  
flow inanalternatingcurrentcircuit,measuredinohms.  
InPhase:Thepolarityofanaudiosignalwhenconnect-  
edasfollows:(+)to(+)and(-)to(-).  
Integrated Amplifier:A preamplifierand amplifierbuilt  
intoonechassis.  
Subwoofer:A driverdesigned to operate overthe low  
bassportionoftheaudiorange.Alsoreferstoasystem  
consistingofawooferanditsenclosure,whicharephys-  
icallyseparatefrom theupperrangeloudspeakers.  
Surround Speakers:Speakers located in the side or  
rearforsurroundchanneleffects.  
InterconnectCable:A lengthofshieldedwirewithplugs  
atboth ends forfeeding signals from one electronic  
device toanother.  
L.F.E.:"Low FrequencyEffects";The.1channelofinfor-  
mationrecordedonmostmultichanneldigitalsoundfor-  
mats.  
Treble:Theupperpartofthefrequencyspectrum,con-  
sistingoffrequenciesaboveabout3000Hz.  
Tweeter:A smalldriverdesignedtoreproducehighfre-  
quencies.  
Line-LevelConnection:Low levelRCA/phono orXLR  
typeconnection.  
Load:A term used to describe the impedance thata  
speakerpresentstoanamplifier.  
Watt:A measureofelectricalpower,combiningthevolt-  
agewiththeelectricalcurrentrequiredtodrive theloud-  
speaker.  
Low-Pass Filter:A filterthatpasses only low frequen-  
ciesbelow ahigherlimit.  
Main Speakers:FrontL & R channelspeakers,some-  
timesreferredtoassatellites.  
Weight:Low frequenciesbelow 50Hz.  
Woofer:A driverdesignedtooperateoverthebasspor-  
tionoftheaudiorange.  
Main-In:A line-levelRCA/XLR poweramplifierinputon  
S p e c if ic a t io n s  
AllSuperSeriesproductsaresonicallymatchedforseamlessintegrationintomultichannelsystems.  
SuperSeries  
SB1  
SB2  
SB3  
ST4  
SC1  
SW10  
SW12  
SC2  
Vented/  
Powered-150watts  
ClassG Amplifier  
Vented/  
Powered-250watts  
ClassG Amplifier  
System Type  
2-WayAcoustic  
Suspension  
2-WayAcoustic  
Suspension  
2-WayAcoustic  
Suspension  
3-WayAcoustic  
Suspension  
2-WayAcoustic  
Suspension  
2-WayAcoustic  
Suspension  
DriverComplement  
Tweeter-  
1fluid cooled aluminum dome tweeterwith neodymium magnetstructure  
W oofer-  
5.25”  
Polypropylene  
6.5”  
Polypropylene  
6.5”  
Polypropylene  
6.5”and8”  
Polypropylene  
(8NotVideoShielded)  
(2)4.5”  
Polypropylene  
10”  
Aluminum  
(NotVideoShielded)  
12”  
Aluminum  
(NotVideoShielded)  
(2)5.25”  
Polypropylene  
Video ShieldedUnlessNoted  
Response  
68Hz-22kHz  
+/-3dB  
51Hz-22kHz  
+/-3dB  
39Hz-22kHz  
+/-3dB  
31Hz-22kHz  
+/-3dB  
78Hz-22kHz  
+/-3dB  
31Hz-180Hz  
+/-3dB  
73Hz-22kHz  
+/-3dB  
27Hz-180Hz  
+/-3dB  
Sensitivity  
Impedance  
86dB /2.83v  
86dB /2.83v  
86dB /2.83v  
86dB /2.83v  
86dB /2.83v  
87dB /2.83v  
8ohm nominal  
8ohm nominal  
8ohm nominal  
8ohm nominal  
8ohm nominal  
8ohm nominal  
Recommended  
AmplifierPower  
Minimum 15watts  
Minimum 15watts  
Minimum 15watts  
Maximum 150watts  
Minimum 15watts  
Maximum 125watts  
Minimum 15watts  
Maximum 150watts  
Minimum 15watts  
Maximum 175watts  
Maximum 175watts Maximum 200watts  
Weight  
8lbs.  
13lbs.  
16lbs.  
47.5lbs.  
11 lbs.  
39.5lbs.  
47.5lbs.  
22lbs.  
Dimensions  
8.75x7.5x11.85  
10x8x13  
12x8x38  
6.63x16.54x5.63  
14x12x18  
6.75x6.25x10.25  
16x14x20  
8.5x19x6.5  
DepthxWidthxHeight”  
Finish  
WhiteorBlack  
HighGlossPiano  
Finish  
WhiteorBlack  
HighGlossPiano  
Finish  
Black  
HighGlossPiano  
Finish  
Black  
HighGlossPiano  
Finish  
Black  
HighGlossPiano  
Finish  
Black  
HighGlossPiano  
Finish  
Black  
HighGlossPiano  
Finish  
Black  
HighGlossPiano  
Finish  
Limited W arranty  
ValidOnlyintheU.S.A.  
W arrantyPeriod  
Foraperiodof5yearsforpartsand5yearsforlabor(1yearpartsand90dayslaborforelectronics)from thedatethisproductisfirstpurchasedfrom anauthor-  
izedNHTdealer,Now HearThis(NHT)warrantsthatifitfailstofunctionproperlyduetoamanufacturingdefect,despiteitsbeinginstalledandoperatedaccord-  
ingtotheseinstructionsandusedundernormalconditions,itwillbeeitherreplacedorrepairedwithnew orrebuiltparts(bothatNHT'soption)withaunitof  
comparablevaluewithoutchargetoyou.  
What'sNotCovered  
Altered,defaced orremoved serialnumbersvoidthisw arranty.  
Thiswarrantydoesnotcoveranyproductusedintrade,business,industrialorcommercialapplications.  
This warranty also doesnotcoverthe cabinetorappearance factors,orcosts,defects ordamage resulting from misuse,abuse,accident,impropermainte-  
nance,alterationsormodificationsnotauthorizedinwritingbyNHT,or partsorlaborfrom anysource otherthananauthorizedNHTservice location.  
Damageduetopowerexposureinexcessofthespeaker'spublishedpowerratings;ie,overpowering,lightningorpowersurges,arealso notcovered.  
YourRights  
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrightswhich varyfrom statetostate.  
NHTlimitsthiswarrantytothepurchaseprice oftheproduct,excludesincidentalorconsequentialdamages,andlimitsitsobligationsunderanyimpliedwar-  
rantiesunderstatelawstoaperiodnotexceedingtheirwarrantyperiods. As some statesdonotallow theabovelimitations,however,theymaynotapplyto  
you.  
To ObtainService  
To findthenameandaddressofthenearestauthorizedNHTservice location,callorwrite:  
CustomerServiceDepartment,NHT,527StoneRd.,Benicia,CA 94510,1-800-NHT-9993(648-9993),www.nhthifi.com  
Foryourfutureconvenience,pleasekeep thisw arrantywithyoursalesreceipt,andrecord dateandplaceofpurchaseforfurtherreference.  

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