Shure KSM137/SL Stereo Small Diaphragm Condenser Microphones, Stereo Pair

The KSM137/SL is an end-address condenser microphone with a single cardioid polar pattern. Designed for studio use, yet rugged enough for live applications, the KSM137/SL can withstand extremely high sound pressure levels (SPL). Its low self-noise and extended frequency response make it ideal for recording instruments. Versatile, durable, and precise, the KSM137SL is an outstanding microphone for instruments ranging from percussion to wind, strings to brass, and piano to guitar. KSM137/SL-STEREO is a stereo pair of KSM137/SL's.

Kit includes two microphones, two foam windscreens, A27M stereo microphone adapter and carrying case.

Shure KSM137/SL-STEREO Features:

• Highly consistent cardioid polar pattern
• Ultra-thin, 2.5 micron, 24 karat gold-layered, lowmass Mylar® diaphragm for superior transient response.
• Class A, discrete, transformerless preamplifier fortansparency, extremely fast transient response, no crossover distortion, andminimal harmonic and intermodulation distortion
• Premium electronic components, including gold-platedinternal and external connectors
• Subsonic filter eliminates low frequency rumble (lessthan 17Hz) caused by mechanical vibration
• 3-position switchable pad (0dB, 15dB and 25dB) forhandling extremely high sound pressure levels.
• 3-position switchable low-frequency filter reducesbackground noise and counteracts proxitmity effect
• Superior common mode rejection and suppression of radio frequencyinterference

Shure KSM137/SL-STEREO Specifications:

• Cartridge Type: permanently biased condenser
• Frequency Response: 20Hz-20kHz
• Directional Polar Pattern: Cardioid
• Output Impedence: 150 ohms (actual)
• Phantom Power: 48Vdc +/- 4Vdc (IEC-268-15/DIN 45596), positive pins 2 and 3
• Current Drain: 4.65mA typical at 48VDC
• Common mode Rejection: >50dB, 20Hz to 20kHz
• Polarity: Positive pressure on diaphragm producespositive voltage on output pin 2 relative to pin 3
• Dimension and Weight: 0.8" wide, 4.8" long, 3.5oz
• Sensitivity (typical, at 1kHz; 1Pa = 94dB SPL):-37dBV/Pa
• Self-noise (typical, equivalent SPL; A-weighted, IEC651): 14dB
• Maximum SPL at 1kHz, 5000 ohm load (attenuator on):145 (160,170)dB
• Output Clipping Level, 5000 ohm load: 15dBV
• Dynamic Range, 5000 ohm load: 131 dB
• Signal-to-Noise Ratio: 80 dB