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Shure SM137 Microphone

SKU: SM137LC MPN: SM137

The Shure SM137 is a Small-Diaphragm Condenser Instrument Microphone.
List Price: $224.00
Sale Price: $179.00

The Shure SM137 is a versatile, flat-response cardioid condenser probe microphone.

The SM137 has 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.

Shure SM137 Highlights Include:

  • 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

Recommended Uses for the Shure SM137:

  • Studio Ensemble
  • Studio Instrument
  • Orchestra/Strings
  • Woodwinds
  • Acoustic Guitar
  • Acoustic Bass
  • Guitar Amp
  • Piano/Organ
  • Cymbols
  • Percussion
  • Stage Overhead

Shure SM137 Microphone User Guide (PDF)

Cartridge Type

  • Permanently Biased Condenser

Frequency Response

  • 20 to 20,000 Hz

Directional Polar Pattern

  • Cardioid

Output Impedance

  • 150 ohms (actual)

Attenuation Switch

  • 0 dB or 15 dB 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

  • >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

  • 24 mm (0.950 in.) diameter
  • 162 mm (6.375 in.) long
  • 195 grams (6.9 oz.)

Sensitivity (typical, at 1000 Hz; 1 Pa = 94 dB SPL)

  • -41 dBV/Pa

Self-noise (typical, equivalent SPL; A-weighted (IEC 651))

  • 19 dB

Maximum SPL@ 1000 Hz

  • 5000 ohms load (Attenuator on): 150 (165 dB)
  • 2500 ohms load (Attenuator on): 144 (159) dB
  • 1000 ohms load (Attenuator on): 139 (154 dB)

Output Clipping Level*

  • 5000 ohms load: 15 dBV
  • 2500 ohms load: 9 dBV>
  • 1000 ohms load: 3 dBV
  • *20 Hz to 20 kHz; THD < 1%. THD of the microphone preamplifier when applied input signal is equivalent to the cartridge output at specified SPL.

Dynamic Range (Attenuator On)

  • 5000 ohms load: 133 (136) dB
  • 2500 ohms load: 128 (130 dB)
  • 1000 ohms load: 122 (125) dB

Signal to Noise Ratio**

  • 75 dB
  • **S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.
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