Earthworks M23

Omni measurement microphone - 3 Hz to 23 kHz +1/-3 dB
MFR# M23
Earthworks M23


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The Earthworks M23 is a cost-effective reference microphone for SMAART, MLSSA, Spectrafoo, TEF & RTA, and all "audio band" measurements. It has a flat frequency response, fast impulse response and exceptional polar characteristics. The M23 is an improved version of the SMAARTMIC previously offered by EAW. Requires 48 V phantom power.


  • Improved version of the measurement microphone manufactured for loud technologies SMAART System
  • Meets or exceeds type 1 specifications
  • Frequency response from 3 Hz to 23 kHz
  • 142 dB SPL max acoustic input
  • Shorter body than the M30
  • Requires 48 V phantom power

Additional Information

Condition New
Package Contents Mic, mic clip, 1/4" adapter, Frequency Response Chart, manual, gift box
Length 165 mm
Diameter 22 mm
Unit Weight 0.35 lb
Transducer Type Condenser
Polar Pattern Omni-Directional
Number of Microphones Single Microphone
Phantom Required Yes
Impedance 65 Ohms, balanced (between pins 2 & 3)
Frequency Range 3 Hz - 23 kHz
Sensitivity -29 dBV/Pa (36 mV)
Max. SPL 140 dB

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