Shure KSM137SL Cardoid Small Diaphragm Condenser Microphone (Matched Pair)

 

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Dale #:SHUR-KSM137SLSTEREO

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  • 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. Versatile, durable, and precise, the KSM137 is an outstanding microphone for instruments ranging from percussion to wind, strings to brass, and piano to guitar.

    Features

    • 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)
    • -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
  • Cartridge TypePermanently Biased Condenser
    Frequency Response20 to 20,000 Hz
    Directional Polar PatternCardioid
    Output Impedance150 ohms (actual)
    Attenuation Switch0 dB, 15 dB, or 25 dB attenuation
    Low Frequency Response SwitchFlat; -6 db/octave below 115 Hz
    -18 dB/octave below 80 Hz
    Phantom Power48 Vdc +/- 4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3
    Current Drain4.65 mA typical at 48 Vdc
    Common Mode Rejection>50 dB, 20 Hz to 20 kHz
    PolarityPositive pressure on diaphragm produces positive voltage on output pin 2 relative to
    pin 3
    Dimensions and Weight20 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 kHz5000 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 Level5000 ohm load: 15 dBV
    2500 ohm load: 9 dBV
    1000 ohm load: 3 dBV
    Dynamic Range5000 ohm load: 131 dB
    2500 ohm load: 125 dB
    1000 ohm load: 120 dB
    Signal to Noise Ratio80 dB
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