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User Guide
Le Guide de l’Utilisateur
Bedienungsanleitung
Guía del Usario
Guida dell’Utente
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.
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
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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.
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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.
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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
Aloadimpedanceofatleast1000Ω isrecommended.Whenusedwithtypi-
calmodernmicrophonepreamplifiers(ratedatabout2500Ω), theKSM32pro-
vides higher maximum SPL capability and output clipping level. The KSM32
canhandleupto160dBSPL,andoutput+15dBVintoa5500Ωorgreaterload
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 Ω load)
< 0.08%* for a 120 dB equivalent SPL input
Maximum SPL (20 Hz to 20 kHz, THD < 1%*)
2500 Ω Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 dB (154 dB w/ attenuation)
1000 Ω Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 dB (148 dB w/ attenuation)
Output Clipping Level (20 Hz to 20 kHz, THD < 1%*)
2500 Ω Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +9 dBV (2.82 V rms)
1000 Ω Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3 dBV (1.41 V rms)
Dynamic Range (20 Hz to 20 kHz, 2500 Ω load)
126 dB (maximum SPL minus A-weighted noise level)
Signal-to-NoiseRatio
81 dB (IEC 651)**
OutputImpedance
150 Ω (actual)
AttenuationSwitch
0 or –15 dB
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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
3
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
Shure’s Service department at 1-800-516-2525. Outside the United States,
pleasecontact your Authorized Shure Service Center.
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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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TYPICAL POLAR PATTERN
Figure 2
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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. “Mylar”isaregis-
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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