Shure KSM32 manual Specifications

Page 6

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 preventextremely high SPL from overloadingthemicrophone.To activate atte- nuation, move the switch to the ª±15 dBº 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

A load impedance of at least 1000 Ω is recommended. When used with typi- cal modern microphone preamplifiers (rated at about 2500 Ω), the KSM32 pro- vides higher maximum SPL capability and output clipping level. The KSM32 can handle up to 160 dB SPL, and output +15 dBV into a 5500 Ω or greater load with microphone attenuation.

SPECIFICATIONS

Cartridge Type

Permanently-biasedcondenser

 

FrequencyResponse

 

20 Hz to 20 kHz (see Figure 1)

 

Directional Pattern

 

Cardioid (see Figure 2)

 

Sensitivity (at 1000 Hz)

 

Open Circuit Voltage

±36 dBV/Pa (16 mV) typical

 

(1 Pa = 94 dB SPL)

Self Noise (equivalent SPL)

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)**

Output Impedance

150 Ω (actual)

Attenuation Switch

0 or ±15 dB

English ± 4

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Contents User Guide Page Features Performance CharacteristicsGeneral Description Model Variations ApplicationsMounting PowerOperation Integral Pop FilterSpecifications Service Furnished AccessoriesReplacement Parts CertificationTypical Frequency Response E1998, Shure Brothers Incorporated 27A3044 RF
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