Earthworks M23R Omnidirectional Reference Measurement Microphone

SKU: EWM23R MFR: M23R
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Key Features

  • Achieve precise audio analysis with the M23R measurement microphone's flat frequency response.
  • Capture accurate sound measurements using this omnidirectional reference microphone for calibration.
  • Ensure reliable data with a wide dynamic range, perfect for critical sound system adjustments.
  • Trust the M23R's exceptional accuracy for professional sound checks and acoustic evaluations.
  • Utilize this reference mic for sound reinforcement, ensuring optimal performance every time.
  • Weighing only 0.35lbs, this lightweight microphone is great for on-site sound analysis tasks.
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Earthworks M23R Specifications

  • Frequency response

    3Hz to 23kHz +/- 0.5dB

  • Polar Pattern

    Omnidirectional

  • Sensitivity

    36mV/Pa (-28.9 dBv/Pa)

  • Matching Tolerance

    +/- 0.5dB (freq resp & sensitivity)

  • Power Requirements

    24-48V Phantom, 10mA

  • Peak Acoustic Input

    140dB SPL

  • Output

    XLR-3 (pin 2+)

  • Minimum Load

    600 Ohm btw. pins 2 & 3

  • Noise

    20dB, A equivalent

  • Temperature

    Operating Range: -4 to 140 Degree F (-20 to +60 Degree C)
    Storage: -40 to 176 Degree F (-40 to +80 Degree C)

  • Humidity

    Up to 90%

  • Dimensions (L x D)

    6.25 x 0.860" (165 x 22mm)

  • Weight

    0.35lbs (1.60kg)

  • UPC Code

    827517293769

About Earthworks M23R

How the Earthworks M23R Omnidirectional Reference Measurement Microphone revolutionizes audio recording and acoustical measurements is truly impressive. This sleek, modern, and high-tech microphone is designed specifically for precision sound measurement, making it an indispensable tool for sound system setup, troubleshooting, and room acoustics analysis.

The M23R is more than just a microphone; it's a sophisticated audio device that employs a pre-polarized condenser capsule directly coupled to a wideband, low output impedance preamplifier. This advanced design ensures a linear frequency response from 3Hz to 23kHz, providing crystal-clear audio capture across a broad spectrum of frequencies.

One of the standout features of the M23R is its omnidirectional capability. This means it can capture high-quality sound from all directions, making it ideal for recording in various settings, from live events to intimate podcasting sessions.

The M23R is not just about performance; it's also about durability. Crafted from stainless steel, this microphone is designed to withstand frequent use and handling, making it a reliable choice for professionals who demand the best from their equipment.

Unique to the M23R is its circuitry, which excludes the transconductance of the input FET from the overall gain structure. This ensures that the microphone's sensitivity remains stable, even when subjected to variations in ambient temperature.

The M23R meets or exceeds ANSI Type 1 requirements and is manufactured to within +/- 0.5dB of each other in frequency response and sensitivity. This level of precision eliminates the need for Electronic Calibration Files (ECFs) in most cases, simplifying your workflow.

Each M23R comes with its own calibration chart, detailing its individually measured open-circuit sensitivity and frequency response curve. If needed, an ECF containing the frequency response data for importing directly into measurement software is available from Earthworks upon request.

The M23R is easy to operate. Simply connect the microphone to a preamplifier supplying 24-48V phantom power using a standard XLR microphone cable. For optimum results, point the M23R toward the sound source.

In conclusion, the Earthworks M23R Omnidirectional Reference Measurement Microphone is a sophisticated, high-quality audio recording tool that delivers precision, durability, and ease of use, making it a top choice for professionals in the audio industry.

Earthworks M23R Features

  • All Reference Series Microphones are matched within +/- 0.5dB of each other in Frequency Response & Sensitivity
  • Meets or Exceeds Type 1 Specifications
  • 140dB SPL Max Acoustic Input
  • Exceptionally Uniform Omnidirectional Polar Pattern
  • Ideal for SMAART, Meyer SIM, MLSSA, Spectrafoo, TEF, RTA and all Audio Band Measurements

Warranty Information

This product has a limited warranty of 120 months.

Key Features

  • Achieve precise audio analysis with the M23R measurement microphone's flat frequency response.
  • Capture accurate sound measurements using this omnidirectional reference microphone for calibration.
  • Ensure reliable data with a wide dynamic range, perfect for critical sound system adjustments.
  • Trust the M23R's exceptional accuracy for professional sound checks and acoustic evaluations.
  • Utilize this reference mic for sound reinforcement, ensuring optimal performance every time.
  • Weighing only 0.35lbs, this lightweight microphone is great for on-site sound analysis tasks.

What's in the box:

  • M23R Omnidirectional Reference Measurement Microphone
  • Mounting Clip
  • Calibration Adapter
  • Calibration Chart
  • Earthworks 10 Year Limited Warranty