23KHZ REFERENCE MEASUREMENT MICROPHONE

M23R

23KHZ REFERENCE MEASUREMENT MICROPHONE

M23R

Infinitely matched. Infinitely flexible.

The M23R is a precision engineered 23kHz omnidirectional measurement microphone ideally suited for acoustical measurements including loudspeaker design and quality control, sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required.

Infinitely Matched

Every M23R has the same frequency response and sensitivity – matched to within +/- 0.5dB across the entire operating frequency range (3Hz to 23kHz). 

Infinitely Matched

Every M23R has the same frequency response and sensitivity – matched to within +/- 0.5dB across the entire operating frequency range (3Hz to 23kHz). 

Infinitely Flexible

Build your own matched array of reference microphones at your own speed. Simply add more M23Rs whenever you need them. They’ll match tomorrow or ten years from now. 

Infinitely Flexible

Build your own matched array of reference microphones at your own speed. Simply add more M23Rs whenever you need them. They’ll match tomorrow or ten years from now. 

Consistent Results Across Space & Time

Start doing multi-mic measurements or equip new teams at any time with confidence that all of their reference microphones match.

Specifications

FREQUENCY RESPONSE 3Hz -23kHz ±0.5dB
POLAR PATTERN Omnidirectional
SENSITIVITY 36mV/Pa (-28.9dBV/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)
OPERATING TEMPERATURE RANGE -4º to 140º F (-20º to +60º C)
STORAGE TEMPERATURE RANGE -40º to 176º F (-40 to +80º C)
HUMIDITY Up to 90%
DIMENSIONS (L x D) 165mm x 22mm (6.25 x .860 inches)
WEIGHT .5 lb. (225g)
I take tuning as seriously as I do mixing. If there’s anything I own that I can honestly say makes it to every gig, its my Earthworks M30.
Chris Rabold, FOH ENGINEER
The Earthworks M30 measurement mic is the first piece of gear I grab for when I’m ready to tune my P.A. system, I know its frequency response is very accurate and will tell me exactly what’s happening in the room.
Rick Camp, FOH ENGINEER
Every show I’ve mixed for Umphrey’s McGee is available for download. That requires accurate tuning for my mix to translate to the recording. The M30 is the most accurate way I can measure that.
Chris Mitchell, FOH ENGINEER
The accuracy of the Earthworks M30 microphone is stunning. I know that when the system is tuned using this microphone the results will be pure audio bliss.
Brad Divens, FOH ENGINEER

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