Shure KSM137SLST Pair Studio Mic

SHURE KSM137SLST Details ^top

KSM137/SL STPAIR with two KSM137/SL Mics, two windscreens, one carrying case, champagne finish
KSM137
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.

Performance Characteristics

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

A highly consistent cardioid polar pattern
Ultra-thin, 2.5 micron, 24 karat gold-layered, low mass Mylar® 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)
Three-position switchable pad (0 dB, 15 dB, and 25 dB) for handling extremely high sound pressure levels (SPLs)
Three-position switchable low-frequency filter reduces background noise and counteracts proximity effect

SHURE KSM137SLST Specs ^top

Cartridge Type
Permanently Biased Condenser

Frequency Response
20­ to 20,000 Hz
view larger

Directional Polar Pattern
Cardioid

Output Impedance
150 ohms (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 +/- 4 Vdc (IEC­268­15/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
20 mm (0.8 in.) diameter, 122 mm (4.8 in.) long;
100 grams (3.5 oz.)

Sensitivity (typical, at 1000 Hz; 1 Pa = 94 dB SPL)
­-37 dBV/Pa

Self­noise (typical, equivalent SPL; A-weighted, IEC 651)
14 dB

Maximum SPL at 1 kHz
5000 ohm load (Attenuator on): 145 (160, 170) dB
2500 ohm load (Attenuator on): 139 (154, 164) dB
1000 ohm load (Attenuator on): 134 (149, 159) dB

Output Clipping Level*
5000 ohm load: 15 dBV
2500 ohm load: 9 dBV
1000 ohm load: 3 dBV

Dynamic Range
5000 ohm load: 131 dB
2500 ohm load: 125 dB
1000 ohm load: 120 dB

Signal to Noise Ratio**
80 dB

*20 Hz to 20 kHz; THD < 1%. THD of the microphone preamplifier when applied input signal is equivalent to the cartridge output at specified SPL
**S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise A-weighted.

SHURE KSM137SLST Documentation ^top

KSM137slst User guide (pdf)

SHURE KSM137SLST Books_and_Articles ^top

Booklets and Articles

Connecting Professional Microphones to Computer Sound Cards Because interconnection procedures in the computer world differ from those used in professional audio, it is not always easy to make a professional microphone work with a computer. This Shure Application Bulletin will help. On-Line Version

Microphone Techniques for Music -- Sound Reinforcement Recommended microphone type and placement for a large variety of vocal and instrument situations. Adobe Acrobat, 677KB

Microphone Techniques for Music -- Studio Recording In this guide, Shure Application Engineers describe particular microphone techniques and placement: techniques to pick up a natural tonal balance, techniques to help reject unwanted sounds, and even techniques to create special effects. Adobe Acrobat, 755KB

Microphones And Multitracks Essential steps to quality recording using a microphone and multitrack recorder. Adobe Acrobat, 597KB

MP3: Getting Your Music from the Garage to the Web Short and to the point, this booklet addresses everything MP3, from "What is it?" to "How do I do it?" On-line version

See the full list of Booklets and Articles for more.

SHURE KSM137SLST Selection_Guide ^top

Click here for Selection Guide