Shure KSM32/SL

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

 

Applications 

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

Cardioid

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

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

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