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Earthworks M30 Omnidirectional Measurement microphone

List Price: $189.99
PAS DEAL $189.99
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Availability: Usually Ships in 1 to 2 Business Days
Product Code : M30

Earthworks M30 Omnidirectional Measurement microphone

9Hz to 30kHz +1/-3dB

The M30 is an affordable reliable 30kHz reference microphone. It utilizes a very small, very accurate omnidirectional element, a carefully crafted stainless steel body and innovative circuitry to deliver flat time coherent response from 9Hz to 30kHz. The M30 has become the defacto standard reference for Smaart, MLSSA, SIMM and TEF. The M30 is the most cost effective measurement mic which you can trust. It exceeds the specified requirements for all audio band measurement systems. The M30 is a standard.

The M30 comes with a measured frequency response chart which includes a value for sensitivity. Since the M30 is stable with respect to temperature, you can input this number if your program allows and be very close to correct absolute SPL. We also ship the M30 with a 'white' calibrator adapter which adapts from the M30 to a 1/2 inch calibrator adapter for field calibration.


  • Frequency response: +-1dB 9Hz to 27kHz, +1/-3dB 5Hz to 30kHz
  • Polar Pattern: Omnidirectional
  • Sensitivity: 8mV/Pa (-42 dBV/Pa)
  • Power requirements: 48V phantom, 10mA
  • Max acoustic input: 150dB SPL
  • Peak output voltage: 10V
  • Output: XLR intended to drive a balanced transformerless input (pin 2+)
  • Min output load: 600ohms between pin2 and 3
  • Noise: 27dB SPL equivalent (A weighted)
  • Dimensions (LxD): 229mm x 22mm (9 x .860 inches)
  • Influence of magnetic field: 80A/M induces less than 52dB SPL equivalent

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