Atlas Sound 100V User manual

AtlasSound.com

1/4

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.

TELEPHONE: (800) 876-3333

FAX (800) 765-3435

Strategy Series

II In-Ceiling 70.7V / 100V / 8 Ω Subwoofer System

FAPSUB

Speciﬁcations

Woofer Size: 8" (203mm)

Woofer Impedance: 8Ω Direct Coupled (Nominal)

Transformer Taps at 70.7V: 1.9, 3.8, 7.5, 15, 30, & 60 Watts

Power Handling: 100 Watts RMS

Sensitivity (1 W / 1 M): 89dB Average

Frequency Response: 45Hz – 120Hz (±10dB),

55Hz – 100Hz (±6dB)

Dispersion: Omni

Low Pass Filter: Three Pole Design 18dB / octave @ 120Hz

Magnet Weight: Nominal, 20oz (580g)

VC Diameter: 35.5mm

VC Material: Copper

VC Former Material: Kapton

Cut-out Diameter: 14" (355mm)

Height: 12

⁄4" (324mm)

Diameter: 15

⁄4" (400mm)

Features

• TunedandPorted,LongExcursion8"SubwooferSystemProduces

AmazingExtendedLowFrequencyResponseinAnyCeilingSpeaker

System

• HighEfficiency,PassiveCrossoverNetworkEliminatestheNeedfor

Dedicated Amplifier and/or Active Crossover

• LowCrossoverPointGreatlyReducesLocalization(AbilityofListener

toIdentifytheSubwooferLocation)

• FrontMountedTapSelectorSwitchforEasySystemTuning

Adjustment Includes Transformer Bypass Setting for 8Ω / Direct

Coupled Operation

• EasyInstallationinDropTileorSheetrockCeilingsViaC-Ring/V-Rail

Tile Bridge and "Dog Leg" Mounting System (Included)

• UniquelyDesigned,EasyAccessInputPanelDesignAllowsforThru

ConduitRunsUsingFlexibleorRigidConduit

• Detachable,PhoenixStyle,Locking,Four-poleEuroConnectorsfor

EasyDaisyChainWiring

• AttractiveStudMountGrilleMatchesAestheticsofOtherAtlas

Sound FAP Series

• ULListed–1480

Applications

Inrecentyears,therehasbeenashiftinmarketdemandforcommer-

cial sound systems to deliver higher fidelity sound. Retail, restaurant,

and hospitality owners and managers are finding that their customers

areexpectingthequalityoftheirshoppingordiningexperiencetobe

enhancedbymusicreproducedatnearlythesamesoundqualitythey

expectintheirhometheatersandcarstereos.Businessownersnow

realizethattheexcitementcausedbyaqualityaudiosystemcanturninto

increasedcustomersatisfaction.TheFAPSUB,whenusedinconjunction

withotherAtlasSoundfull-rangespeakers,providesgreatsoundingback-

ground/foregroundmusicreproductionsuitabletotheseapplications.

FAPSUB

(back)

(preliminary)

AtlasSound.com

2/4

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.

TELEPHONE: (800) 876-3333

FAX (800) 765-3435

General Description

TheFAPSUBconsistsofahighlyefficient8”subwooferdesignedfor

optimal performance in its included enclosure system. The woofer fea-

turesanextended,ventedpolepieceforhigherexcursionandbetterheat

dissipation and a Kapton

voice coil former for increased power handling.

Ahighlyefficient,3-polefilteringnetworkeliminatesunwantedhigh

frequencies from the woofer, while the 937 in

, tuned and ported, deep

drawn steel enclosure provides frequency response down to 45Hz

(±10dB).Aspeciallydesignedrippledspeakerdustcaphelpseliminate

nearly all frequency artifacts emanating from the center of the woofer

cone.

A special low saturation 70.7V / 100V transformer is included with pri-

mary taps at 1.9, 3.8, 7.5, 15, 30, and 60 watts (@70.7V) to match and

balancethesubwooferwithfullrangespeakerswithouttheneedforsep-

arate amplification. A convenient front mounted selector switch allows

tapselectionwithouttheneedtoremovethespeakerfromtheceiling.

Thistapselectorswitchalsoincludesatransformerbypasssettingfor8Ω

/ direct coupled applications.

Mounting is simplified with Strategy Series

style"DogLeg"tabsthat

allow easy installation into drop tile or drywall ceilings with the provided

tilebridgeassembly.Thetilebridgeconsistsoftwo“V”shapedformed

mountingrailsandaC-Ringassembly.TheC-Ringcanbeattachedtothe

railswiththescrewsprovidedtoextendsupporttotheT-Bargridinsus-

pended ceiling applications. Multiple hole locations are provided to allow

theC-Ringtobepositionedtotheouteredgethetileifnecessary.

Forexistingdry-wallapplications,thetilebridgeC-Ringandsupportrails

canbeinsertedintotheholecutfortheFAPSUB.Foreasypositioning,

the“V”shapedsupportrailsmatchtheshapeoftheC-Ringtabsforeasy

maneuveringandlocationwhenworking"blindly"abovethedeck.

For new construction drywall ceiling applications, the optional FAP82-TR

trimringisavailable.Thisunitprovidesamarkedlocationfordrywall

installers to cut around, essentially reserving the desired location in the

ceilinguntilfinalinstallationofFAPSUB.Mountingholesareprovidedto

accommodate 16" or 24" OC stud / joist mounting.

AsupportringisalsoprovidedonthetopoftheFAPSUBenclosureto

facilitateanauxiliarysupportcable.

NOTE: IT IS MANDATORY THAT THIS SECONDARY SUPPORT

BE UTILIZED IN DROP CEILINGS FOR SAFETY AND SEISMIC

CONSIDERATIONS.

System Design Considerations

Howmanysubwooferstouse,wheretoplacethem,andatwhat

wattagetotapthemwillbedifferentinalmosteverysituation.

Variablesinclude:

Size of the Room

 SpeakerMounting(Ceiling)Height

 AmbientNoiseLevel

Type of Music

 AvailableSpeakerLocations

Generallyspeaking,separateelectroniccrossoversandamplification

arenotnecessaryfortheFAPSUB.However,incertainhighSPLsitua-

tionstheincreasedefficiencygainedbyusinganactivecrossoverand

dedicatedamplifierisbeneficial.Manyamplifiermanufacturersoffer

plug-in cards to provide this function on their products. A very cost effec-

tivein-lineelectroniccrossoverisalsoavailablefromRDLLabs(Model

ST-CX1W) for use with dedicated amplifiers.

Forcontemporarymusicreproduction,theminimumsubwooferlevel

shouldbesettomatchthevolumeofthefullrangespeakers;however,

forsomehighenergymusicapplicationsthemaximumlevelcouldbeas

muchas10dBlouderthanthefullrangespeakers.

Likeanyspeaker,useoftheboundaryeffectwillincreasetheoutputof

theFAPSUB.Placingtheloudspeakerwithin3'ofawallwillincreasethe

outputby3dB.Placementwithin3'ofacornerwillincreasethelevel

another 3dB (6dB total).

FAPSUB

C-Ring / V-Rails

FAP82-TR

(preliminary)

AtlasSound.com

3/4

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.

TELEPHONE: (800) 876-3333

FAX (800) 765-3435

Subwoofers and the Inverse Square Law

Eventhoughfrequenciesbelow200Hzarerelativelyomni-directional,

listenerscanstill"localize"thesubwooferfromthevolumeproduced.To

avoid"hotspots"itmaybenecessarytousetwoormoresubwoofers

tapped at a lower setting spread throughout the room instead of a single

subwoofertappedatmaximumwattage.

Ratio of Subwoofers to Full Range Speakers

Duetothemanypotentialvariables,itisdifficulttogiveaccuratesugges-

tionsonsystemdesign.Itisimportantforthesystemdesignertolookat

therequiredSPLatearlevel,ambientnoiseintheroom,speaker/trans-

former efficiency, and transformer insertion loss to determine the num-

berofspeakersandamplifierpowerrequired.In70.7V/100Vsystems,

careshouldbetakensothetotalspeakerpowertapsdonotexceedthe

amplifier's70.7Voutputcapability.

Thefollowing“ruleofthumb”informationandexamplesareofferedto

provide a starting point for system design.

For“good”lowfrequencyaugmentationinafullrangesystem(allfull

rangespeakersandFAPSUBsonthesameamplifier),asingleFAPSUB

shouldbeusedforeveryfourfullrangespeakers.

For“excellent”lowfrequencyaugmentationinafullrangesystem

(allfullrangespeakersandFAPSUBsonthesameamplifier),asingle

FAPSUBshouldbeusedforeverytwofullrangespeakers.

Ampliﬁer Limitations

EvenwiththeextremeefficiencyoftheFAPSUBitwillnotovercomethe

limitations of an underpowered system. Be sure to allow sufficient head-

roombyusingbasicsystemdesignparametersinchoosinganamplifier.

 Example SmallSportsBar

Square Feet 1,500

 CeilingHeight 9'

 PeakAmbientNoiseLevel 75dB

Program Digital Music

Full Range Speakers

EightAtlasSoundFAP42Tspeakerstappedat4wattseach(32watts

total)willprovide90dBonaxisat3.5'earheight(15dBaboveambient).

13.5'spacingbetweenspeakersprovidesminimumoverlapcoverageat

4kHz.

Subwoofers

TwoAtlasSoundFAPSUBsubwooferstappedat30wattseach(60watts

total)willfilloutthelowfrequenciesat8dBabovethelevelofthefull

rangespeakers.Ifboundaryloadedintoonecorneroftheroomthelevel

willbeincreasedanother6dB(14dBabovethefullrangespeakers).

TotalWattage:92wattsx1.3Multiplier(forheadroom)=119.6watts

Amplifier Power Suggested: 120 Watts Atlas Sound AA120

Ampliﬁer Low Frequency Capability

Many70.7V/100Vpoweramplifiersonthemarkettodayarefromthe

erawhenbusinessmusicsystemsextendingdowntoonly100Hzwere

widelyaccepted.Theselessexpensiveamplifiersarenotcapableof

drivingtoday'shighfidelitysystemsthatrequiresoundbelow100Hz.

WhenspecifyingtheAtlasSoundFAPSUB,whichoperateswellbelow

100Hz,itisVERYIMPORTANTtouseapoweramplifiercapableoffull

outputdowntoandbelowthelowestfrequencygoingINTOtheamp,

whichisoftenaround50Hz.Anamplifierwithlow-frequencycapabilityis

absolutelycrucialwheneverthesystemincludesasubwooferandisvery

importantfortoday'shighfidelitybusinessmusicsystems.

Architect & Engineer Specﬁciations

TheloudspeakersystemshallbeAtlasSoundFAPSUBorapprovedequal.

Systemshallincludeahighperformance8"subwooferloudspeaker,

portedbassreflexenclosure,andstudmountgrilleforconventionalceil-

ing installation.

Frequencyresponseforthesystemshallbe45Hz–120Hz(±10dB)and

thesensitivityshallbe89dB(SPLat1W/1M).

Loudspeakershallbecomprisedofan8"lowfrequencyconetypedriver.

Magnetshallbeaminimumof20oz(580g)andthevoicecoildiameter

shallbe1".Transformershallbe70.7Vwithprimarytapsat1.9,3.8,7.5,

15,30,and60watts.Afrontmounttapselectorswitchshallbeincluded.

Thisswitchshallhaveatransformerbypasssettingfor8Ω / direct cou-

pled operation.

Enclosureshallbeadeepdrawn,937in

, steel enclosure design. To

facilitateconnectioninconduitsystems,enclosureshallbeequipped

with an access panel covering a recessed terminal cup. This cover shall

provideacombination

⁄4" (19mm inside diameter) / 1" (25mm inside diam-

eter)knock-outonthesideaccessandatopaccesscompressionfitting

/strainrelieftofacilitateflexibleconduitupto22mmoutsidediameter

or 1" (25mm inside diameter) conduit when the compression fitting is

removed.

Externalwiringshallbeaccomplishedviaaremovable,lockablewiring

connectorwithscrew-downterminalstoprovidebothsecurewire

terminationandprewiringcapabilitybeforeloudspeakerinstallation.

The4polelockingPhoenixStyle/Euroconnectorshallfacilitatein/out

connectionsandshallbelocatedintherecessedareabehindtheconduit

access panel.

Seismicsupporteyeshallbeprovidedontopofenclosureforadditional

suspension point when used in drop tile ceilings. Construction of enclo-

sureshallbeaminimumof18-gaugedeepdrawngalvanizedmetal.

Thesystemshallincludeasupportbackingplatetoreinforcetheceil-

ingmaterialandtilesupportrailsforuseoneither2'x4'(609mmx

1219mm)or2'x2'(609mmx609mm)suspendedceilingtiles.This

assemblycanallbeinstalledfrombeneaththeceilingtile.

Overallfrontfacediametershallnotexceed15

⁄4"(400mm);overalldepth

fromthebottomoftheceilingshallnotexceed12

⁄4"(323mm).Grilles

shallbeapressfitinstallation,manufactured24-gauge(perforatedmesh)

andfinishedinwhiteepoxy.

(preliminary)

AtlasSound.com

4/4

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.

TELEPHONE: (800) 876-3333

FAX (800) 765-3435

Frequency (Hz)

SPL in dB

FAPSUB Frequency Response

Frequency (Hz)

Ohms

FAPSUB Impedance (Ohms) vs Frequency

(preliminary)

Atlas Sound 100V, 70.7V User manual

Related papers

Other documents