Shure BETA 181 User manual

侧向拾音电容式话筒
사이드-어드레스 콘덴서 마이크
サイドアドレスコンデンサー型マイクロホン
Конденсаторный микрофон с боковым приемом
Micrófono de condensador de captación lateral
Microfono a condensatore con ripresa laterale
Von der Seite zu besprechendes Kondensatormikrofon
Microphone électrostatique à capture latérale
Side-Address Condenser Microphone
©2012 Shure Incorporated
27A14482 (Rev. 1)
Printed in U.S.A.
Wired Microphones
BETA181
BETA 181

2

3
Features
• PremierliveperformancemicrophonewithShure
quality,ruggedness,andreliability
• Compactpreampattachestofourinterchangeable
capsules
• WidedynamicrangeforuseinhighSPLenvironments
• Side-addressformallowsfordiscreetpositioningin
tightperformanceandrecordingsettings
• Innnovativelockingringprovidesasecureconnection
betweencapsuleandpreamp
• Hardenedsteelmeshgrilleresistsdenting,wear,and
abuse
• Compactdesign,under12cm(5in.),reducesstage
clutter
• Furnishedwithstandadapterandcarryingcase
Changing Capsules
Applications and Placement
General Rules for Use
• Aimthemicrophonetowardthedesiredsoundsource;angleunwantedsoundstowardits null point.
• Usethefewestamountofmicrophonesaspracticaltoincreasethe Potential Acoustic Gain andpreventfeedback.
• Followthe 3 to 1 Rule byspacingeachmicrophonebyatleastthreetimesthedistancetoitssourcetoreduce
Phase Cancellation .
• Placemicrophonesasfaraspossiblefromreflectivesurfacestoreduce
Comb Filtering .
• Whenusingdirectionalmicrophones,workcloselytothemicrophoneforextrabassresponsetotakeadvantageof
Proximity Effect .
• Avoidexcessivehandlingtominimizepickupofmechanicalnoiseandvibration.
• Donotcoveranypartofthemicrophonegrille,asthiswilladverselyaffectmicrophoneperformance.
• Addawindscreenwhenusingthemicrophoneoutdoors.
Variations
Beta 181/CCardioidMicrophone
General Description
TheShureBeta181isanultra-compact,side-address,
condensermicrophone,designedfordiscreetplace-
mentinliveandstudioenvironments.Featuringinter-
changeablecardioid,supercardioid,omnidirectionaland
bidirectionalcapsulesforsuperiorversatility,thesmall
diaphragmoftheBeta181providessuperioraudiowith
consistent,“textbook”polarresponsesinaformfactor
smallenoughtogetclosetothesourceinthetightest
conditions.
Performance Characteristics
• Exceptionallow-frequencyreproduction
• ExtremelyhighSPLhandling
• Highoutputlevel
• Nocrossoverdistortion
• Transformeroutput
Positioning the Microphone
ThefrontofthemicrophoneismarkedbytheShurelogoonthepreampandthe
polarpatternicononthecapsule.Positionthissidetowardthesoundsource.
BETA 181
FollowthesestepstochangeBeta181capsules:
KNURLED RING
ALIGNMENT KEY
ALIGNMENT GROOVE
1. Turnoffphantompoweranddisconnectfrom
equipment.
2. Unscrewthecapsule’sknurledringtodetachthe
preamp.
3. Slidethealignmentkeyonthebottomofthecapsule
intothegrooveonthepreamptoensurethatthe
Shurelogodisplaysthefrontofthemicrophone.
4. Tightentheknurledringtosecurelyreconnectthe
microphone.
Thefollowingtableliststhemostcommonapplicationsandplacementtechniques.Keepinmindthatmicrophonetech-
niqueislargelyamatterofpersonaltaste;thereisnoone“correct”microphoneposition.
BETA 181
Cardioid Supercardioid Omnidirectional Bidirectional
• Drumoverheads
• Piano
• Acousticinstruments
• PairwithaBeta181/BI
forM/Sstereotechnique
• Close-mikingin
performancesettings
• Snaredrum
• Acousticinstruments
• Roomandambient
pickup
• Monodrumoverhead
• Stringensembles
• UseapairofBeta181/
BIforBlumleinstereo
teqhnique
• Monodrumoverhead
• Dualsoundsources,such
asbetweentom-tomsor
acousticinstruments
Note: Aswithallbidirectionalmicrophones,soundspickedupfromthebackwillbeoutofpolaritywiththesource.
Thosefromthefrontareinpolaritywiththesource.
Beta 181/SSupercardioidMicrophone
Beta 181/OOmnidirectionalMicrophone
Beta 181/BIBidirectionalMicrophone
NOTE:Beforeeachuse,makesurethecapsuleistightly
securedonthemicrophone,asvibrationandaccidental
hitswithdrumsticksmayloosenit,resultinginsignalloss.

4
Accessories and Parts
Avoiding Pickup of Unwanted Sound Sources
Directionalmicrophonesaremostsensitivetosoundsarrivingonaxisandrejectatanglesdependinguponthepolarpattern.Thefollowingchartshowstherejectionanglesofeach
microphone.Inliveperformanceorrecordingsettings,alignmonitors,P.A.loudspeakers,andunwantedsoundsourcesattheseangles.
Tominimizefeedbackandensureoptimumrejectionofunwantedsound,alwaystestmicrophoneplacementbeforeaperformance.
Cardioid Supercardioid Bidirectional
Off-axisnullpointsat180degrees Off-axisnullpointsat120degrees Off-axisnullpointsat90degress
CERTIFICATION
EligibletobearCEMarking.ConformstoEuropeanEMC
Directive2004/108/EC.MeetsHarmonizedStandards
EN55103-1:1996andEN55103-2:1996,forresidential
(E1)andlightindustrial(E2)environments.
TheDeclarationofConformitycanbeobtainedfrom:
AuthorizedEuropeanrepresentative:
ShureEuropeGmbH
HeadquartersEurope,MiddleEast&Africa
Department:EMEAApproval
WannenackerStr.28
D-74078Heilbronn,Germany
Phone:+49713172140
Fax:+497131721414
Email:[email protected]
Power Requirements
Thismicrophonerequiresphantompowerandperforms
bestwitha48Vdcsupply(IEC-61938).However,itwill
operatewithslightlydecreasedheadroomandsensitivity
withsuppliesaslowas11Vdc.
Mostmodernmixersprovidephantompower.Youmust
useabalancedmicrophonecable:XLR-to-XLRor
XLR-to-TRS.
Load Impedance
MaximumSPLcapability,outputclippinglevel,anddy-
namicrangevarywiththeinputloadimpedanceofthe
preamplifiertowhichyouconnectthemicrophone.Shure
recommendsaminimuminputloadimpedanceof1000
Ω.Mostmodernmicrophonepreamplifiersmeetthis
requirement.Higherimpedanceresultsinbetterperfor-
manceforthesespecifications.
124,46 mm
(4.90 in.)
20,32 mm
(0.80 in.)
34,54 mm
(1.36 in.)
Furnished Accessories
MicClip A57F
ZipperedCarryingCase A181C
Windscreen A181WS
Optional Accessories
CardioidCapsule RPM181/C
SupercardioidCapsule RPM181/S
BidirectionalCapsule RPM181/BI
OmnidirectionalCapsule RPM181/O
Beta181Preamp RPM181/PRE
UniversalMicrophoneMount A75M
ShockStopper™IsolationMount A53M
7.6m(25ft.)Cable C25E
Note: Informationinthisguideissubjecttochange
withoutnotice.Fortheadditionalinformationaboutthis
product,pleasevisitwww.shure.com.

21
Caractéristiques
Type de capsule Condensateuràélectret
Courbe de directivité 181/C: Cardioïde
181/S: Supercardioïde
181/O: Omnidirectionnel
181/BI: Bidirectionnel
Réponse en fréquence 20à20,000Hz
Impédance de sortie 110Ω
Sensibilité
tensionencircuitouvert,à1
kHz,typique
Cardioïde: –46.5dBV/Pa[1](4.7mV)
Supercardioïde: –49.5dBV/Pa[1](3.4mV)
Omnidirectionnel: –52.0dBV/Pa[1](2.5mV)
Bidirectionnel: –51.0dBV/Pa[1](2.8mV)
SPL maximum
1kHzavecDHTde1%[2]
Charge de 2500 Ω: Cardioïde: 151.5dBSPL
Supercardioïde: 154.5dBSPL
Omnidirectionnel: 157.0dBSPL
Bidirectionnel: 156.0dBSPL
Charge de 1000 Ω: Cardioïde: 149.0dBSPL
Supercardioïde: 152.0dBSPL
Omnidirectionnel: 154.0dBSPL
Bidirectionnel: 153.5dBSPL
Rapport signal/bruit[3] Cardioïde: 73.5dB
Supercardioïde: 71.5dB
Omnidirectionnel: 70.5dB
Bidirectionnel: 71.0dB
Plage dynamique Charge de 2500 Ω: Cardioïde: 131.0dB
Supercardioïde: 132.0dB
Omnidirectionnel: 133.5dB
Bidirectionnel: 133.0dB
Charge de 1000 Ω: Cardioïde: 128.5dB
Supercardioïde: 129.5dB
Omnidirectionnel: 130.5dB
Bidirectionnel: 130.5dB
Niveau d’écrêtage
à1kHz,DHTde1%
Chargede2500Ω: 10.5dBV
Chargede1000Ω: 7.5dBV
Bruit propre
équivalentSPL,pondéréen
A,typique
Cardioïde: 20.5dBSPL-A
Supercardioïde: 22.5dBSPL-A
Omnidirectionnel: 23.5dBSPL-A
Bidirectionnel: 23.0dBSPL-A
Rejet en mode commun
20à20,000kHz
≥55dB
Polarité Unepressionacoustiquepositivesurlediaphragmeproduitune
tensionpositivesurlabroche2parrapportàlabroche3.
Alimentation 11–52Vc.c.[4]alimentationfantôme(IEC-61938)
2.4mA,maximum
Poids Net 145g(5.1oz)
[1]1Pa=94dBSPL
[2]LaDHTdupréamplificateurdumicrophoneappliquéeauniveaudusignald’entréeestéquivalente
auniveaudesortiedelacapsulepourlavaleurSPLspécifiée.
[3]Lerapportsignal/bruitestladifférenceentreleniveauSPLde94dBetleniveauSPLéquivalent
dubruitproprepondéréA.
[4]Touteslescaractéristiquestechniquesontétémesuréesavecunesourced’alimentationfantôme
de48Vc.c.Lemicrophonefonctionneàdestensionsplusbassesmaisauprixd’uneplagedy-
namiqueetd’unesensibilitélégèrementréduites.
SPECIFICATIONS
Cartridge Type ElectretCondenser
Polar Pattern 181/C: Cardioid
181/S: Supercardioid
181/O: Omnidirectional
181/BI: Bidirectional
Frequency Response 20to20,000Hz
Output Impedance 110Ω
Sensitivity
opencircuitvoltage,@
1kHz,typical
Cardioid: –46.5dBV/Pa[1](4.7mV)
Supercardioid: –49.5dBV/Pa[1](3.4mV)
Omnidirectional: –52.0dBV/Pa[1](2.5mV)
Bidirectional: –51.0dBV/Pa[1](2.8mV)
Maximum SPL
1kHzat1%THD[2]
2500 Ω load: Cardioid: 151.5dBSPL
Supercardioid: 154.5dBSPL
Omnidirectional: 157.0dBSPL
Bidirectional: 156.0dBSPL
1000 Ω load: Cardioid: 149.0dBSPL
Supercardioid: 152.0dBSPL
Omnidirectional: 154.0dBSPL
Bidirectional: 153.5dBSPL
Signal-to-Noise
Ratio[3]
Cardioid: 73.5dB
Supercardioid: 71.5dB
Omnidirectional: 70.5dB
Bidirectional: 71.0dB
Dynamic Range 2500 Ω load: Cardioid: 131.0dB
Supercardioid: 132.0dB
Omnidirectional: 133.5dB
Bidirectional: 133.0dB
1000 Ω load: Cardioid: 128.5dB
Supercardioid: 129.5dB
Omnidirectional: 130.5dB
Bidirectional: 130.5dB
Clipping Level
@1kHz,1%THD
2500Ωload: 10.5dBV
1000Ωload: 7.5dBV
Self Noise
equivalentSPL,
A-weighted,typical
Cardioid: 20.5dBSPL-A
Supercardioid: 22.5dBSPL-A
Omnidirectional: 23.5dBSPL-A
Bidirectional: 23.0dBSPL-A
Common Mode
Rejection
20to20,000kHz
≥55dB
Polarity Positivepressureondiaphragmproducespositivevoltageonpin2with
respecttopin3
Power Requirements 11–52VDC[4]phantompower(IEC-61938)
2.4mA,maximum
Net Weight 145g(5.1oz.)
[1]1Pa=94dBSPL
[2]THDofmicrophonepreamplifierwhenappliedinputsignallevelisequivalenttocartridgeoutput
atspecifiedSPL
[3]S/Nratioisthedifferencebetween94dBSPLandequivalentSPLofselfnoise,A-weighted
[4]Allspecificationsmeasuredwitha48Vdcphantompowersupply.Themicrophoneoperatesat
lowervoltages,butwithslightlydecreasedheadroomandsensitivity.

26
Beta 181/C
Beta 181/S
Beta 181/BI
Beta 181/O
20 200001000 1000050 100
98765432 98765432
+10
0
–10
Hz
dB
-20
+20
20 200001000 1000050 100
98765432 98765432
+10
0
–10
Hz
dB
-20
+20
20 200001000 1000050 100
98765432 98765432
+10
0
–10
Hz
dB
-20
+20
20 200001000 1000050 100
98765432 98765432
+10
0
–10
Hz
dB
-20
+20
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
250 Hz
500 Hz
1000 Hz 10000 Hz
6400 Hz
2500 Hz
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
250 Hz
500 Hz
1000 Hz 10000 Hz
6400 Hz
2500 Hz
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
250 Hz
500 Hz
1000 Hz 10000 Hz
6400 Hz
2500 Hz
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
180°
150°
120°
90°
60°
30°
150°
120°
90°
60°
30°
–20 dB
–15 dB
–10 dB
–5 dB
+5 dB
250 Hz
500 Hz
1000 Hz 10000 Hz
6400 Hz
2500 Hz

27

www.shure.com ©2012 Shure Incorporated
Asia, Pacific:
Shure Asia Limited
22/F, 625 King’s Road
North Point, Island East
Hong Kong
Phone: [phone]
Fax: [phone]
Email: [email protected]
United States, Canada, Latin
America, Caribbean:
Shure Incorporated
5800 West Touhy Avenue
Niles, IL 60714-4608 USA
Phone: [phone]
Fax: [phone] (USA)
Fax: [phone]
Email: [email protected]
Europe, Middle East, Africa:
Shure Europe GmbH
Jakob-Dieffenbacher-Str. 12,
75031 Eppingen, Germany
Phone: [phone]
Fax: [phone]
Email: [email protected]