Filter
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Low Frequency
Response Switch
0/15/25 dB
Attenuation Switch
FIGURE 1. KSM137
GENERAL DESCRIPTION
The Shure
R
KSM137 is an end-address condenser microphone with a cardioid
polar pattern. Designed for studio use, yet rugged enough for live applications, the
KSM137 can withstand extremely high sound pressure levels (SPL). Its low
self-noise and extended frequency response make it ideal for recording musical
instruments.
FEATURES
S A highly consistent cardioid polar pattern
S Ultra-thin, 2.5 µm, 24 karat gold-layered, low mass Mylar
R
diaphragm for
superior transient response
S Class A, discrete, transformerless preamplifier for transparency, extremely
fast transient response, no crossover distortion, and minimal harmonic and
intermodulation distortion
S Premium electronic components, including gold-plated internal and external
connectors
S Subsonic filter eliminates low frequency rumble (less than 17 Hz) caused
by mechanical vibration
S Three-position switchable pad (0 dB, 15 dB, and 25 dB) for handling
extremely high sound pressure levels (SPLs)
S Three-position switchable low-frequency filter reduces background noise
and counteracts proximity effect