Shure Microphone KSM32 User Manual

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User Guide  
Le Guide de l’Utilisateur  
Bedienungsanleitung  
Guía del Usario  
Guida dell’Utente  
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SHURE BROTHERS INCORPORATED  
KSM32 CARDIOID CONDENSER MICROPHONE  
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Thank you for selecting the KSM32 cardioid condenser microphone.  
Over 70 years of microphone manufacturing experience has  
contributed to making the KSM32 one of the finest  
condensermicrophonesavailable.  
If you have any questions not answered in this booklet, please contact Shure  
Applicationsat847-866–2200, MondaythroughFriday, from 8:00 am to 4:30 pm, CST.  
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GENERAL DESCRIPTION  
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TheShure KSM32 is a side-address, cardioidcondensermicrophonefor  
highly critical studio recording and live sound productions. It offers an ex-  
tendedfrequency response for an open, natural sounding reproduction of the  
original sound source.  
FEATURES  
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Class A, transformerless preamplifier circuitry eliminates cross-over  
distortion for improved linearity across the full frequency range  
Embossed, high-compliance diaphragm provides extended low fre-  
quencyresponse  
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Ultra-thin, 2.5 mm, gold-layered, low mass, Mylar diaphragm for ex-  
cellent transient response  
15 dB attenuation switch for handling extremely high sound pressure  
levels (SPL)  
Switchable low-frequency filter provides greater flexibility to reduce  
background noise or to counteract proximity effect  
Integrated three-stage pop protection grille reduces “pop” and other  
breath noise  
Internal shock mount reduces transmission of handling noise  
PERFORMANCE CHARACTERISTICS  
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Extendedfrequencyresponse  
Very low self noise  
Exceptionallow-frequencyreproduction  
High output level  
High input SPL capability  
No cross-over distortion  
Extremely uniform polar response  
Superior common mode rejection and suppression of radio frequency  
interference  
English – 1  
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MODEL VARIATIONS  
TheKSM32/SLhas achampagne-coloredfinishandcomeswiththefollow-  
ing accessories:  
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Locking aluminum carrying case  
ShureLockt elastic-suspension shock mount  
ShureLockt swivel mount  
Protective velveteen pouch  
The KSM32/CG has a non-reflective, charcoal-gray finish for situations  
whereless microphone visibility is prefered, such as live soundandstagepro-  
duction. It comes with the following accessories:  
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ShureLockt swivel mount  
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Padded, zippered carrying bag  
APPLICATIONS  
SometypicalapplicationsfortheKSM32arelistedbelow.Microphoneuse,  
however, is largely a matter of personal taste. The KSM32 may be used for a  
variety of applications other than those listed.  
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Voice—solo, background, voice-over, broadcasting  
Acoustic instruments—such as piano, guitar, drums, percussion,  
strings  
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Wind instruments—brass and woodwind  
Low frequency instruments—such as double bass, electric bass, kick  
drum  
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Overhead miking—drums or percussion  
Ensembles—choral or orchestral  
Room ambience pick-up—guitar amplifier or drums  
Boththeacousticenvironmentandmicrophoneplacementhavesignificant  
effects on the sound obtained when miking a source. Youmayneedtoexperi-  
mentwith these variables to achieve the best overall sound for each applica-  
tion.  
English – 2  
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OPERATION  
Positionthemicrophonesothatthesidemarked“Shure”—thesideopposite  
the switches—faces the sound source.  
Power  
TheKSM32requiresphantompower.Optimalperformancewillbeachieved  
whenusing a 48 Vdc supply (IEC-268-15/DIN 45 596). The microphone oper-  
ates with supplies as low as 11 Vdc.  
Mounting  
The ShureLock swivel mount and elastic shock mount provide a secure  
meansof fastening the microphone to a floor or boom stand. When using the  
swivel mount, the internal shock mount provides good isolation. For greater  
reduction of noise from external vibrations, use the elastic shock mount.  
It is important when mounting the microphone that the threaded, knurled  
lockinggrip on the shock mount or swivel mount is screwed securely onto the  
threads at the base of the microphone. Do not overtighten.  
Integral Pop Filter  
TheKSM32 has an integral pop filter which provides excellentprotection  
against most wind and breath noise. An external pop protection screen may  
be necessary when close-miking vocalists. The use of a low frequency cutoff  
filter may also be effective.  
SelectingLow-FrequencyResponse  
A three-position switch on the back of the KSM32 allows you to adjust the  
low-frequency response of the microphone. The low-frequency filter settings  
can be used to compensate for wind noise, room noise or proximity effect.  
Flatresponse. Use this setting for any application where you desire  
the most natural reproduction of the source. The microphone will reproduce  
ultra-low frequencies, and the ShureLock elastic-suspension shock mount  
may be required to reduce mechanical vibrations transmitted through the mi-  
crophonestand.  
Low-frequencycutoff. Provides 18 dB-per-octave cutoff at 80 Hz.  
Helpseliminate stage rumble or other low-frequency room noise such as that  
coming from heating, ventilation, or cooling (HVAC) systems. It may also be  
used to compensate for proximity effect or to reduce the low frequencies that  
can make an instrument sound dull or “muddy.”  
Low-frequency rolloff. Provides a 6dB-per-octave rolloff filter at  
115Hz.Usethissettingwithvocalsorinstrumentstocompensateforproximity  
effectortoreducethelowfrequenciesthatcanmakeaninstrumentsounddull  
or muddy.  
English – 3  
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SettingAttenuation  
The attenuation switch on the back of the KSM32 reduces the signal level  
fromthe cartridge by 15 dB without altering the frequency response. This can  
preventextremelyhighSPLfromoverloadingthemicrophone.Toactivateatte-  
nuation, move the switch to the “–15 dB” position.  
In situations where the high output capability of the KSM32 might overload  
the microphone preamplifier of a console or mixer, use an attenuation switch  
(pad) in the mixer or an external inline attenuator such as the Shure A15AS.  
LoadImpedance  
Aloadimpedanceofatleast1000isrecommended.Whenusedwithtypi-  
calmodernmicrophonepreamplifiers(ratedatabout2500Ω), theKSM32pro-  
vides higher maximum SPL capability and output clipping level. The KSM32  
canhandleupto160dBSPL,andoutput+15dBVintoa5500orgreaterload  
withmicrophone attenuation.  
SPECIFICATIONS  
Cartridge Type  
Permanently-biasedcondenser  
FrequencyResponse  
20 Hz to 20 kHz (see Figure 1)  
DirectionalPattern  
Cardioid (see Figure 2)  
Sensitivity(at 1000 Hz)  
Open Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . –36 dBV/Pa (16 mV) typical  
(1 Pa = 94 dB SPL)  
Self Noise (equivalentSPL)  
13 dB typical, A-weighted (IEC 651)  
Total Harmonic Distortion (20 Hz to 20 kHz , 2500 load)  
< 0.08%* for a 120 dB equivalent SPL input  
Maximum SPL (20 Hz to 20 kHz, THD < 1%*)  
2500 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 dB (154 dB w/ attenuation)  
1000 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 dB (148 dB w/ attenuation)  
Output Clipping Level (20 Hz to 20 kHz, THD < 1%*)  
2500 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +9 dBV (2.82 V rms)  
1000 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3 dBV (1.41 V rms)  
Dynamic Range (20 Hz to 20 kHz, 2500 load)  
126 dB (maximum SPL minus A-weighted noise level)  
Signal-to-NoiseRatio  
81 dB (IEC 651)**  
OutputImpedance  
150 (actual)  
AttenuationSwitch  
0 or –15 dB  
English – 4  
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LowFrequency Response Switch  
Flat, –6 dB/octave below 115 Hz, –18 dB/octave below 80 Hz  
Power  
PhantomPower . . . . . . . . . . . . . . . . 48 Vdc " 4 Vdc (IEC-268-15/DIN 45 596),  
positive pins 2 and 3  
CurrentDrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.65 mA typical at 48 Vdc  
Common Mode Rejection Ratio (CMRR)  
50 dB, 20 Hz to 20 kHz  
Connector  
Gold plated, three-pin (XLR) professional audio  
Polarity  
Positivepressureondiaphragm produces positive voltage on pin 2 relative to pin  
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Dimensions  
55.9mm (2.20 in.) maximum body diameter, 187 mm (7.37 in.) long.  
Net Weight  
490 grams (17.3 oz)  
*THDof the microphone preamplifier when applied input signal is equivalent to the  
cartridge output at specified SPL.  
**S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-  
weighted.  
CERTIFICATION  
ConformstoEuropeanUniondirectives,eligibletobearCEmarking;meetsEu-  
ropeanUnion EMC Immunity Requirements (EN 50 082–1, 1992).  
FURNISHED ACCESSORIES  
ShureLockt Elastic Shock Mount (SL model only) . . . . . . . . . . . . . . A32SM  
ShureLockt Swivel Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A32M  
AluminumCarrying Case (SL model only) . . . . . . . . . . . . . . . . . . . . . A32SC  
Padded,Zippered Carrying Bag (CG model only) . . . . . . . . . . . . . . . . A32ZB  
Protective Velveteen Pouch (SL model only) . . . . . . . . . . . . . . . . . . . . A32VB  
REPLACEMENT PARTS  
Suspension Shock Mount Elastic Cords (set of two) . . . . . . . . . . . . . . RK373  
SERVICE  
For additional microphone service or parts information, please contact  
Shures Service department at 1-800-516-2525. Outside the United States,  
pleasecontact your Authorized Shure Service Center.  
English – 5  
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+10  
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–10  
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5 6 789  
1000  
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10000 20000  
20  
50  
100  
Hz  
Low-Frequency Cutoff  
Low-Frequency Rolloff  
TYPICAL FREQUENCY RESPONSE  
(Measured0.6 m (2 ft) from a spherical sound source, free-field conditions)  
Figure 1  
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180  
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150  
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120  
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90  
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90  
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60  
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60  
0
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125  
250  
500,1000  
10000  
15000  
2500  
5000  
TYPICAL POLAR PATTERN  
Figure 2  
English – 6  
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TrademarkNotices: The circular S logo, the stylized Shure logo, and the words  
“Shure” and “The Sound of Professionals... Worldwide” are registered trade-  
marks of Shure Brothers Incorporated in the United States. “ShureLock” is a  
trademarkofShureBrothersIncorporatedintheUnitedStates. “Mylarisaregis-  
tered trademark of E.I. duPont de Nemours and Company in the United States.  
These marks may be registered in other jurisdictions.  
Patent Notice: Patent Applied For  
The Sound of Professionals...Worldwide  
Shure Brothers Incorporated  
222 Hartrey Avenue, Evanston IL 60202-3696  
Phone:  
847 866-2200 FAX: 847 866-2279  
49-7131-72140 FAX: 49-7131-721414  
847 866-2200 FAX: 847 866-2585  
In Europe, Phone:  
Internationally, Phone:  
Web Address:  
E1998, ShureBrothersIncorporated  
Printed in U.S.A.  
27A3044(RF)  
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