MartinLogan EFXBK User Manual

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ContentsandIntroduction19

Contents and IntroduCtIon

Contents and Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

LowVoltage(DC)PowerConnection . . . . . . . . . . . . . . . . . . . 20

 SpeakerLevelConnection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

 Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Mounting the EFX On A Wall . . . . . . . . . . . . . . . . . . . . . . . . . 21

 ChangingtheDirectionofRotation. . . . . . . . . . . . . . . . . . . . . 23

Room Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

 YourRoom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

 Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

 RulesofThumb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

 DipolarSpeakersandYourRoom . . . . . . . . . . . . . . . . . . . . . . 24

Dispersion Interactions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

 ControlledHorizontalDispersion. . . . . . . . . . . . . . . . . . . . . . 25

 ControlledVerticalDispersion . . . . . . . . . . . . . . . . . . . . . . . . 25

 ThreeMajorTypesofDispersion . . . . . . . . . . . . . . . . . . . . . . 25

Home Theater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Electrostatic Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

FullRangeOperation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

MartinLogan Exclusives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

XStat™Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

 CLS™(CurvilinearLineSource). . . . . . . . . . . . . . . . . . . . . . . . 29

 Generation2Diaphragm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

 MicroPerfStator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

 VacuumBonding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

 AirFrame™Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Electrostatic Loudspeaker History . . . . . . . . . . . . . . . . . . . . . 30

Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . 32

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

 WarrantyandRegistration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

 SerialNumber. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Glossary of Audio Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Congratulations! You have invested in one of the world’s

premier loudspeaker systems.

TheMartinLoganEFXrepresentsanadvancedcombination

ofsonictechnologiesestablishinganunprecedenteddirection

foraudiophiledesign.Theresultofyearsofresearch,thenew

EFX™hybridelectrostaticloudspeakerfeaturesXStat™tech-

nology,dramaticallyreducingcabinetsize,yetestablishing

newstandardsforefficiency,dynamicsandprecision.

Housedwithinaradical,ultra-rigidextrudedaluminum

AirFrame™,theEFX’snewCLSXStat™transducerbuildsupon

thelegacyofMartinLogan’selectrostaticheritagewiththe

incorporationofadvancedvacuumbondingandMicroPerf

statpanels,providingevengreaterefficiencyandprecision.

Theintegrationelectricalinterfacetechnologydeveloped

byMartinLogan’sCLX™engineeringteamextendseffortless

dynamicsandpurity,resultinginevenhighersonicstandards

ofefficiencyandprecision.

Featuringanadvancedcrossovertopologyderivedfromthe

CLX™loudspeaker,eachEFX™crossoverutilizesprecision

audiophile-gradepolypropylenecapacitorsandhigh-purity

air-corecoils.Thisadvancedcrossovertopologyflawlesslypre-

servesmicroscopicsubtletieswhileeffortlesslyhandlingthe

broadestrangeofdynamicscontainedwithineventhemost

demandingsonicsource.

ThematerialsinyournewEFXspeakersareofthehighest

qualityandwillprovideyearsofenduringenjoymentand

deepeningrespect.Thecabinetryisconstructedfromthehigh-

estqualitycompositematerialforacousticalintegrityand

featuresrealwoodveneers.

Throughrigoroustesting,thecurvilinearelectrostaticpanel

hasprovenitselftobeoneofthemostdurableandreliable

transducersavailabletoday.Fabricatedfromacustomtool

punchedhigh-gradesteel,thepatentedpanelisthencoated

withaspecialpolymerthatisappliedviaaproprietaryelec-

trostaticbondingprocess. Thispanelassemblyhouses a

membranejust0.0005ofaninchthick.Ruggedlyconstructed

andinsulated,thepanelisratedtoeasilyhandle20–300watts

ofpowerwithnodeleteriouseffects.

TheothersectionsofyourUser’sManualexplainindetailthe

operationofyourEFXspeakersandthephilosophyappliedto

theirdesign.Aclearunderstandingofyourspeakerswillinsure

thatyouobtainmaximumperformanceandpleasurefromthis

mostexactingtransducer.Ithasbeendesignedandconstructed

togiveyouyearsoftrouble-freelisteningenjoyment.

English

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MartinLogan EFXBK Black ESL Series Premium On-Wall Electrostatic Loudspeakers (Pair)

User Manual - Page 19