Cut through the Noise with the Shure KSM137/SL Cardioid Condenser Instrument Microphone

The KSM137 is an end-address condenser microphone with a single 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 instruments.

• 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)
• 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
• Includes A100C Case, A100WS Windscreen, A57F Stand Adapter

SPECIFICATIONS

• Cartridge Type: Electret Condenser
• Polar Pattern: Cardioid
• Frequency Response: 20 - 20,000 Hz
• Senstivity Open circuit voltage, @ 1 kHz, typical: -37 dBV/Pa (14.1 mV)
• Maximum SPL (1 kHz @ 1% THD)
• No Pad: 145 dB, 139 dB, 134 dB
• -25 dB Pad: 170 dB, 164 dB, 159 dB
• Signal-to-Noise Ratio: A-weighted 80 dB
• Dynamic Range (@ 1 kHz)
• 5000 ohms load: 131 dB
• 2500 ohms load: 125 dB
• 1000 ohms load: 120 dB
• Clipping Level (20 Hz - 20 kHz, 1% THD)
• 5000 ohms load: 15 dBV
• 2500 ohms load: 9 dBV
• 1000 ohms load: 3 dBV
• Self Noise quivalent SPL, A-weighted, typical: 14 dB
• Common Mode Rejection (10 to 100,000 Hz): ≥50 dB
• Connector: Three-pin Professional Audio (XLR), male, balanced
• Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
• Power Requirements: 11-52 VDC phantom power (IEC-61938), 4.7 mA, maximum
• Net Weight: 100 g (3.5 oz)

Manufacturer: Shure
Model: KSM137/SL
SKU: I142936-N-9-WHXC
UPC: 042406112291

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