Shure KSM137 Studio Instrument Microphone Overview
The versatile Shure KSM137 Studio Instrument Microphone is an end-address condenser microphone suitable for detailed studio and live use with instruments ranging from piano to guitar, percussion to wind and strings to brass with its extended frequency range. It features a single cardioid polar pattern and can withstand outstandingly high SPLs. With low self-noise and premium electronic components, there really is no going wrong with the KSM137.
- 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
- 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
- Low self-noise
- Exceptional reproduction of low-frequency sounds
- Superior common mode rejection and suppression of RFI (radio frequency interference)
- Great for Close miking of acoustic instruments such as piano, guitar, violins, drums, and percussion; Overhead miking of drums and percussion instruments; Electric guitar amplifiers; Brass and woodwind instruments; Room ambience pick-up (guitar amplifier or drums); Orchestras, choirs, wind ensembles; Low-frequency instruments such as double bass and kick drum
- A137C Carrying Case, A100WS Windscreen and A57F Stand Mount included with this microphone
- Cartridge Type: Permanently Biased Condenser
- Frequency Response: 20-20,000 Hz
- 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 (IEC-268-15/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
- Self-noise (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
