Earthworks M23

23kHz Omnidirectional Measurement Microphone

Our price:$922.00 GST
Order Code: M23

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Earthworks M23 is an omnidirection reference microphone, for a huge range of ‘audio band’ measurements including SMAART software.

M23 offers exceptional reference audio results at an affordable cost. It has a flat frequency response that extends from 3Hz to 23kHz, a consistent omnidirectional polar response. 140dB SPL rating without distortion, with no handling noise. Immune to most temperature and atmospheric fluctuations, the M23 will deliver reliable and repeatable results in almost any environment. 

Extremely fast impulse response and linear phase response make the M23 ideal for use with high-quality FFT-based real-time audio system measurement software like SMAART™, SIM™, REW™, Electroacoustics Toolbox™, FuzzMeasure™ and others, as well as for use in PA system alignment and loudspeaker design.

Every M23 is individually hand-tuned and tested and is delivered with its own printed frequency response chart. An Electronic Calibration File (ECF) is generated for each microphone during final testing, and can be downloaded free of charge after product registration.

M23 package includes:
MC1 (microphone clip)
ADP1 (1/2″ calibrator adapter)

M23 features:

  • 23kHz flat frequency response
  • Cost effective measurement microphone
  • Improved version of the SMAARTMIC™ previously offered by EAW
  • Ideally suited for acoustical measurements sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required
  • Omnidirectional polar pattern
  • Flat frequency response, fast impulse response and exceptional polar characteristics
  • Used by SMAART™, MLSSA™, Spectrafoo™, TEF™ and RTA in addition to acoustic measurement systems manufactured by dbx, DEQX and others
  • Meets or exceeds ANSI Type 1 and applicable IEC 61094 requirements
  • Each M Series microphone is delivered with its own calibration chart providing its individually measured open-circuit sensitivity and the frequency response curve
  • Electronic Calibration File available
  • Operating Temp Range: -20 deg C to +60 deg C ( -4 deg. F to 140 deg. F)
  • Storage Temp Range: -40 deg C to +80 deg C ( -40 deg. F to 176 deg. F)
  • Humidity: Up to 90%
  • Re-calibration recommended every five (5) years

Frequency Response: 3Hz to 23kHz ±1/-3dB
Polar Pattern: Omnidirectional
Sensitivity: 34mV/Pa (-29dBV/Pa)
Power Requirements: 24 – 48V Phantom, 10mA
Max Acoustic Input: 140dB SPL
Output: XLR (pin 2+)
Output Impedance: 65Ω balanced (between pins 2 & 3)
Min Output Load: 600Ω between pins 2 & 3
Noise: 20dB SPL equivalent (A weighted)
Dimensions L x D: 165mm x 22mm
Weight: 160g