Shure KSM32/SL Embossed Single Diaphragm Condenser  Micropho

Shure KSM32/SL Embossed Single Diaphragm Condenser Micropho

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Product Description

An embossed single-diaphragm, side-address, cardioid condenser microphone for highly critical studio recording and live sound productions. The Shure KSM32 offers an extended frequency response for an open, natural sounding reproduction of the original sound source. 

  • Class A, transformerless preamplifier circuitry eliminates cross-over distortion for improved linearity across the full frequency range.

  • Embossed, high-compliance diaphragm provides extended low-frequency response.

  • Ultra-thin, gold-layered, low-mass, Mylar diaphragm for excellent 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

  • Replacement cartridge:  RK374 


Performance Characteristics 

  • Extended frequency response

  • Very low self-noise

  • Exceptional low-frequency reproduction

  • 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



Some typical applications for the KSM32 are listed below. Microphone use, however, is a matter of personal taste. The KSM32 may be used for a variety of applications other than those listed. 

  • Voice -- solo, background, voice-over, broadcasting

  • Acoustic instruments -- such as piano, guitar, drums, percussion, strings

  • Wind instruments -- brass and woodwind

  • Low frequency instruments -- such as double bass, electric bass, kick drum

  • Overhead miking -- drums or percussion

  • Ensembles -- choral or orchestral

  • Room ambiance pick-up -- guitar amplifier or drums 

Both the acoustic environment and microphone placement have significant effects on the sound obtained when miking a source. You may need to experiment with these variables to achieve the best overall sound for each application. 

Cartridge Type

Permanently-biased Condenser

Frequency Response

20 to 20,000 Hz

Directional Polar Pattern


Output Impedance

150 ohms (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


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

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

139 (154) dB

133 (148) dB

Output Clipping Level*

2500 ohm load (Attenuator on): 9 dBV

1000 ohm load (Attenuator on): 3 dBV

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

Dynamic Range

2500 ohm load: 126 dB

1000 ohm load: 119 dB

Signal to Noise ratio**

81 dB

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

Total Harmonic Distortion (THD), 2500 ohm load

<0.08% for a 120 dB equivalent SPL input

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