Shure KSM32 Bedienungsanleitung

User Guide

27B3044 (Rev. 2)

E2003, Shure Incorporated Printed in U.S.A.

Low-frequency

response switch

15 dB

attenuator

KSM32

BACK

KSM32

FRONT

FIGURE 1. KSM32 Front and Back

GENERAL DESCRIPTION

The ShureRKSM32 is a side-address condenser microphone with a cardioid polar

pattern. Designed for studio use but rugged enough for live applications, the KSM32

has an externally biased 1-inch diaphragm, extremely low self-noise, and an

extended frequency response specially tailored for vocal tracking and instrument

recording.

FEATURES

SClass A, transformerless preamplifier circuitry eliminates cross-over distortion

for improved linearity across the full frequency range

SEmbossed, high-compliance diaphragm provides extended low frequency

response

SUltra-thin, 2.5 mm, gold-layered, low mass, MylarRdiaphragm for excellent

transient response

S15 dB attenuation switch for handling extremely high sound pressure levels

(SPL)

SSwitchable low-frequency filter provides greater flexibility to reduce back-

ground noise or to counteract proximity effect

SIntegrated three-stage pop protection grille reduces “pop” and other breath

noise

SInternal shock mount reduces transmission of handling noise

PERFORMANCE CHARACTERISTICS

SExtended frequency response

SVery low self noise

SExceptional low-frequency reproduction

SHigh output level

SHigh input SPL capability

SNo crossover distortion

SExtremely uniform polar response

SSuperior common mode rejection and suppression of radio frequency interfer-

ence

MODEL VARIATIONS

The KSM32/SL has a champagne-colored finish and comes with the following ac-

cessories:

SLocking aluminum carrying case

SShureLocktelastic-suspension shock mount

SShureLocktswivel mount

SProtective velveteen pouch

The KSM32/CG has a non-reflective, charcoal-gray finish for situations where less

microphone visibility is prefered, such as live sound and stage production. It comes

with the following accessories:

SShureLocktswivel mount

SPadded, zippered carrying bag

APPLICATIONS

Some typical applications for the KSM32 are listed below. Microphone use, however,

is largely a matter of personal taste. The KSM32 may be used for a variety of applica-

tions other than those listed.

SVoice and vocals

SClose-miking of acoustic instruments such as piano, guitar, violins, drums,

and percussion

SBrass and woodwind instruments

SLow-frequency instruments such as double bass and kick drum

SOverhead miking for drums or percussion

SOrchestras, choirs, wind ensembles

SRoom ambience pick-up (guitar amplifier or drums)

NOTE: Sound quality is strongly affected by microphone location and room

acoustics. To acheive the best overall sound for a particular application, it may be

necessary to experiment with microphone placement and various room treatments.

OPERATION

Mounting

The ShureLock swivel mount and elastic shock mount provide a secure means of

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 locking grip

on the shock mount or swivel mount is screwed securely onto the threads at the base

of the microphone. Do not overtighten.

Power

The KSM32 requires phantom power and performs optimally with a 48 Vdc supply

(IEC-268-15/DIN45 596). However, it will operate with slightly decreased headroom

and sensitivity with supplies as low as 11 Vdc. Most modern mixers provide phantom

power. Phantom power can only be transmitted to the KSM32 through a cable

terminated with XLR connectors at each end.

Positioning the Microphone

The front of the KSM32 is marked by the Rlogo. See Figure 1. Position this

side of the microphone toward the sound source. The rear of the microphone is

marked by the logo, the low-frequency filter switch, and the 15dB attenuation

switch.

Selecting Low-Frequency Response

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 reduce wind noise, room noise or proximity effect.

Flat response. Provides the most natural sound in most applications.

Low-frequency cutoff. Provides a 15

dB-per-octave cutoff at 80 Hz. Helps

eliminate floor rumble and low-frequency

room noise from heating and air conditioning

systems. This setting may also be used to

compensate for proximity effect or to reduce

low frequencies that make an instrument

sound dull or muddy.

Low-Frequency Rolloff. Provides a 6

dB-per-octave rolloff filter at 115 Hz. Use this

to compensate for proximity effect or to

reduce low frequencies that could make an

instrument sound dull or muddy.

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20 100050 100 98765432

–10

Low-Frequency Cutoff

Low-Frequency Rolloff

Flat Response

FIGURE 2. LOW FREQUENCY RESPONSES

Setting Attenuation

The attenuation switch on the back of the KSM32 reduces the signal level from the

cartridge by 15 dB without altering the frequency response. This can prevent

extremely high SPLs (ie. close miked drums and guitar cabinets) from overloading

the microphone. To activate attenuation, move the switch to the “-15 dB” position.

0 dB – Use this switch for “quiet” to “normal” sound levels.

–15 dB – Use this switch position when in close proximity with extremely loud

sound sources such as kick drum, snare drum, or loud guitar cabinets.

In situations where the high output capability of the KSM32 might overload the micro-

phone preamplifier of a console or mixer, use an attenuation switch (pad) in the mixer

or an external inline attenuator such as the Shure A15AS.

Integral Pop Filter

The KSM32 grille consists of 3 separate mesh layers that act as an integral pop filter

which helps reduce wind and breath noise. Depending on the performer, an external

pop-protection screen or windscreen (See Figure 3) may be necessary when

close-miking vocalists.

FIGURE 3. PS-6 POPPER STOPPERTPOP FILTER

Load Impedance

Shure recommends a load impedance of at least 1000 Ω. When used with modern

microphone preamplifiers (rated at 2500 Ω), the KSM32 provides higher maximum

SPL capability and output clipping level. When the attenuation switch is set to the

–15 dB position, the KSM32 can handle sound pressure levels of up to 160 dB and

output +15 dBV into a load of 5500 Ωor greater, with microphone attenuation.

SPECIFICATIONS

Cartridge Type Permanently-biased Condenser

Frequency Response 20 to 20,000 Hz (see Figure 4)

Directional Polar Pattern Cardioid (see Figure 5)

Output Impedance 150 Ω(actual)

Attenuation Switch 0 or –15 dB attenuation

Low Frequency response switch flat; –6 db/octave below 115 Hz;

–18 dB/octave below 80 Hz

Phantom Power 48 Vdc ±4 Vdc (IEC–268–15/DIN 45 596),

positive pins 2 and 3

Current Drain 4.65 mA typical at 48 Vdc

Common Mode Rejection ≥50 dB, 20 Hz to 20 kHz

Polarity Positive pressure on diaphragm produces positive

voltage on output pin 2 relative to pin 3

Dimensions and Weight 55.9 mm (2.20 in.) maximum body diameter,

187 mm (7.37 in.) long (see Figure 6)

490 grams (17.3 oz.)

Sensitivity (typical, at 1000 Hz;

1 Pa = 94 dB SPL) –36 dBV/Pa (16 mV)

Self–noise (typical, equivalent SPL;

A–weighted, IEC 651) 13 dB

Maximum SPL at 1000 Hz

2500 Ωload (Attenuator on)

1000 Ωload (Attenuator on)

139 (154) dB

133 (148) dB

Output Clipping Level*

2500 Ωload

1000 Ωload

+9 dBV

+3 dBV

Dynamic Range

2500 Ωload

1000 Ωload

126 dB

119 dB

Signal to Noise ratio** 81 dB

Total Harmonic Distortion (THD),

2500 Ωload <0.08% for a 120 dB equivalent SPL input.

*20 Hz to 20 kHz; THD < 1%. THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL.

**S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted.

FIGURE 4. TYPICAL FREQUENCY RESPONSE

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20 200001000 1000050 100 98765432 98765432

+10

–10

60 cm.

15 cm.

FIGURE 5. TYPICAL POLAR PATTERNS

FIGURE 6. DIMENSIONS

55.9 mm

(2.20 IN.)

187 mm

(7.37 IN.)

CERTIFICATION

Eligible to bear CE Marking; Conforms to European EMC directive 89/336/EEC.

Meets applicable tests and performance criteria found in European Professional

Audio Products EMC Standard EN 55103 (1996); Part 1 (Emissions) and Part 2

(Immunity). The KSM32 is intended for use in environments E1 (residential) and E2

(Light Industrial) as defined in European standard EN 55103. EMC conformance is

based on the use of shielded interconnecting cable.

N 108

FURNISHED ACCESSORIES

ShureLocktRubber Isolated Shock Mount (SL Model only) A32SM. . . . . . . .

ShureLocktBlack Swivel Adapter A32M. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Aluminum Carrying Case (SL Model only) A32SC. . . . . . . . . . . . . . . . . . . . . . .

Popper StoppertPop Screen PS–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Padded, Zippered Carrying Bag A32ZB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Protective Velveteen Pouch A32VB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REPLACEMENT PARTS

Suspension Shock Mount Elastic Cords (set of two) RK373. . . . . . . . . . . . . . .

SERVICE

For additional microphone service or parts information, please contact the Shure

Service department at 1-800-516-2525. Outside the United States, please contact

your Authorized Shure Service Center.

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