Owner's Manual

38.1mm(1.5in.).Theexternalwiring
shallbevia4positionceramicter-
minalstripacceptingupto12-gauge
wire.
Themaximumbackcandimension
shallbenomorethan146.8mm(5.78
in.)inheightby95.3mm(3.75in.)
indiameter.Themaximumvisible
dimensionsshallbenomorethan8.4
mm(0.33in.)inheightby190.5mm
(7.5in.)indiameter.Theunitisfac-
torypresettothe20-wattsettingin
the70.7-voltmodewithatapswitch
locatedonthefrontbaffle.
 ThesystemshallbetheSoundTube
CM42-EZs-IIforbothlow-high-
impedanceapplications.
SoundTube Entertainment
6430 Business Park Loop Road
Park City, Utah 84098
Phone [phone]
Fax [phone]
Toll Free 800.647.TUBE
www.soundtube.com
All SoundTube products come
with a 5-year limited warranty.
AlldataforSoundTubespeakersare
independentlycollectedfromandveri-
fiedbyNWAALabs(www.nwaalabs.
com)usingtheirproprietaryMACHtest-
ingsystem.Alldataarecollectedand
analyzedaccordingtoASTM,ISOand
AESstandardsusingEASERA,TEFand
MLSSA.Fullballoondataincludingboth
phaseandmagnitudeiscompiledinto
avarietyofformatsincludingEASE4.x,
GLLandCLF.
Architectural Specifications
Theloudspeakershallconsistofone
102mm(4in.)low-frequencytrans-
ducerandone19mm(0.75in.)high-
frequencytransducerwithafrequency
dividingnetworkinstalledinasealed
enclosure.Thelow-frequencyvoice
coildiametershallbe13mm(0.50in.).
Thelow-frequencytransducershall
haveatreatedfiberconematerialwith
clothsurround.Thehigh-frequency
transducershallbeconstructedofsilk
materialusingabalanced-domecon-
figuration.
 Performancespecificationsofa
typicalproductionunitshallbeasfol-
lows:Usablefrequencyrangeshall
extendfrom125Hz-22kHz,-10
dB.Theloudspeakershallinclude
aselectable25/70.7/100-voltand16
ohmtransformerbypassposition.The
frequency-dividingnetworkshallhave
acrossoverfrequencyof5.0kHz.Rated
powercapacityofthecomponentsand
networkshallbeatleast20wattsRMS
andconformtoEIA-426-Btesting.
Maximumcontinuousoutputat1meter
shallbeatleast100.5dBSPL.
 Thebackcanshallbeconstructedof
galvanizedsteelwithanABSplastic
baffle.Thegrilleshallbeconstructed
ofpaintedsteel.Shippedcompletewith
UL-listedflexconduitclamp,color-
codedtilebridge(tomatchcolor-coded
backcan),grille,wirenuts,cut-outtem-
plateandpaintshield,theintegrated
in-ceilingspeakerisengineeredfor
highperformanceandrapidinstalla-
tioninplenumspaces.Theunitincor-
poratesthreeadditionalattachment
pointsforaddedsecurity,orcodesatis-
factionwhererequired.
 Installationforthespeakershallbe
bytwo-screw,blind-mount,constant-
tensionwingedassemblywithaclamp-
ingallowancefrom0.00mm(0.0in.)to
seriesincludesacolor-coded(orange)
tilebridge,optionalpre-construction
bracket,andasix-positiontapswitchfor
25-,70.7-and100-voltapplicationswith
transformerbypassposition.
Applications
Developedspecificallyforthepag-
ingandbackgroundmusicapplica-
tionswherecost,qualityandfitare
paramount,theCM42-EZs-IIisideal
forhotels,retailstores,restaurants,
airports,churches(undereave),medi-
calfacilitiesorboardrooms.Indeed,the
entireCM-EZ-IIseriesisengineeredfor
installationswherehigh-efficiencyand
rapidinstallationarecriticalattributes.
Forapplicationsrequiringadditional
bassresponse,SoundTube’sCM1001d-
Tsubwooferprovidestruelow-end
responsedownto50Hz.
Patented SoundTube
Technologies
SoundTubeEntertainmentandthe
MSEAudioGroupconstantlydevelop
newtechnologiesthatenhanceaudio
productperformance.SoundTubeEnter-
tainmentinnovationsareprotectedby
multipleU.S.andinternationalpatents,
whichexplicitlycoverSoundTubedome,
enclosureanddispersiontechnolo-
gies.TheMSEAudioGroupactively
defendsitspatentsinordertoprotect
SoundTuberesellersandend-users.
Technical Data and
Specification Tools 
Technical Data
SoundTubeEntertainmentstrivesto
providecompleteandeffectivetechnical
informationanddatatodealers,engi-
neersanddesigners.Alldataareavail-
ablefromSoundTubeEntertainmentorat
www.soundtube.com.
 Technicaldataanddownloadsinclude:
EASE™data–3-Dpolarplots.
EASE™Address–2-Dmodelingfordis-
tributedsystems
Autodesk®Revit®software
TechSheets–Technicalinformationand
architecturalspecsforsystemengineers
SoundTubeSPEC™–Proprietaryspeaker
placementsoftware
Independent Data
Acquisition and Verification
CM42-EZs-II
In-Ceiling Speaker
Preliminary Technical Information