The Shure 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:
A highly consistent cardioid polar pattern
Ultra-thin, 2.5 micron, 24 karat gold-layered, low mass Mylar(TM) diaphragm for superior transient response
Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response, no crossover distortion, and minimal harmonic and intermodulation distortion
Premium electronic components, including gold-plated internal and external connectors
Subsonic filter eliminates low frequency rumble (less than 17 Hz) caused by mechanical vibration
Switchable 15 dB pad for handling extremely high sound pressure levels (SPLs)
3-position switchable pad (0 dB, 15 dB, and 25 dB) for handling extremely high sound pressure levels (SPLs)
3-position switchable low-frequency filter reduces background noise and counteracts proximity effect
Features:
Extended frequency response
Low self noise
Exceptional reproduction of low-frequency sounds
Can withstand high sound pressure levels (SPL)
High output level
No crossover distortion
Uniform polar response
Superior common mode rejection and suppression of radio frequency interference
Applications
Some typical applications for the KSM137 are listed below. Microphone use, however, is a matter of personal taste. The KSM137 may be used for a variety of applications other than those listed.
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 strongly affect the sound obtained from miking a source. You may need to experiment with microphone placement and room treatments to achieve the best overall sound for each application.
Don't Just Record. Capture
KSM Studio Condenser Microphones balance exceptional sensitivity and flexibility with unmatched durability to accurately capture the widest variety of sound sources. Finely tuned condenser cartridges give voice to each of these elegant recording microphones.
KSM Features:
Wide 20Hz-20kHz frequency response is superb for vocals and instruments
Low self-noise
Transformerless preamplifier circuitry for linearity across all frequencies
Ultra thin diaphragm
High output
Exceptionally wide dynamic range
Able to handle high-input SPL sources like drums and guitar
Technical Info
Cartridge Type: Permanently Condenser
Frequency Response: 20-20,000 Hz
Directional Polar Pattern: Cardioid
Output Impedance: 150 ? (actual)
Attenuation Switch: 0 dB,15 dB, or 25 dB attenuation
Low Frequency Response: Switch Flat; 6 db/octave below 115 Hz;
-18 dB/octave below 80 Hz
Phantom Power 48 VDC
Accessories:
Champagne finish
Break resistant mic clip
A100WS windscreen
Carrying case
Personal use items that are used at your mouth or in your ear cannot be returned once opened due to health laws. This includes all microphones, guitar talk boxes, ear plugs, and in-ear earphones. 
