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Home > Pro Audio > Microphones & Wireless Systems > Microphones > Condenser Microphones > Shure SM137 Condenser Instrument Microphone

Microphones

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Item #: 580998
Mfg #: SM137-LC

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Price: $179.00
Availability: The item is currently out of stock. The expected available date is 8/4/2014.

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#580998

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Product Overview

A versatile, flat-response mic for acoustic and high volume performance applications.

  • Ultra-thin diaphragm for smooth high end and tight, controlled low end
    15dB pad for performance consistency across a wider range of high SPL sources
    Low self-noise and transformerless preamplifier circuitry
Product Details

Shure SM137 Condenser Instrument Microphone

The SM137 is a versatile, flat-response cardioid condenser probe microphone with an ultra-thin diaphragm for a frequency response that combines a smooth high-end with a tight, controlled low-end and a 15db pad for natural sound reproduction in both acoustic and high-volume performance applications.

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  • SM137 Condenser Microphone
    Cartridge Type: Permanently Biased Condenser
    Frequency Response: 20 to 20,000Hz
    Directional Polar Pattern: Cardioid
    Output Impedance: 150O (actual)
    Attenuation Switch (0dB or 15dB attenuation) Phantom Power: 48 VDC ± 4 VDC, (IEC-268-15/DIN 45 596), positive pins 2 and 3
    Current Drain: 5.2 mA typical at 48 VDC
    Common Mode Rejection: >50dB, 20Hz to 20kHz
    Polarity: Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3
    Dimensions: 24mm (0.950") diameter, 162mm (6.375") long
    Weight: 195g (6.9oz..)
    Sensitivity (typical, at 1000Hz; 1 Pa = 94dB SPL): -41dBV/Pa
    Self-noise (typical, equivalent SPL; A-weighted (IEC 651)): 19dB
    Maximum SPL@ 1000Hz:
    5000O load (Attenuator on): 150 (165dB)
    2500O load (Attenuator on): 144 (159)dB
    1000O load (Attenuator on): 139 (154dB)
    Output Clipping Level*:
    5000O load: 15dBV
    2500O load: 9dBV>
    1000O load: 3dBV
    *20Hz to 20kHz; THD < 1%. THD of the microphone preamplifier when applied input signal is equivalent to the cartridge output at specified SPL.
    Dynamic Range (Attenuator On):
    5000O load: 133 (136)dB
    2500O load: 128 (130dB)
    1000O load: 122 (125)dB
    Signal to Noise Ratio**
    75dB
    **S/N ratio is difference between 94dB SPL and equivalent SPL of self-noise A-weighted
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