Earthworks Audio M23 User manual

M23
MEASUREMENT MICROPHONE
Follow us on social media @EarthworksA di
For more information, please visit
earthworksaudio.com or call 1-603-654-2433.

Thank you for purchasing the Earthworks
M23 Measurement Microphone
YOUR PURCHASE INCLUDES
1 Earthworks M2
1 Microphone Cli
1 Calibration Adapte
1 Calibration Char
1 Frequency Response Data Sheet (Available Upon
Registering Your M23)
GETTING STARTED
The M23 is a condenser microphone with active
electronics. This meansl
v Its output level will be naturally higher than many of
the dynamic microphones that it may be replacing.
It is not uncommon to need to reduce gain if you
were previously using a dynamic microphone.r
v You will need to engage phantom power on your
interface or preamp. Pro Tip: It's always a good idea
to plug in a condenser microphone while phantom
power is off and the channel is muted. After
engaging phantom power, give the microphone a
short time to settle before unmuting.
M23
MEASUREMENT MICROPHONE
PROPER MAINTENANCE
To guarantee your microphone provides years of
performance, follow these guidelinesl
v Never attempt to disassemble the microphone - it
cannot be opened.

M23
MEASUREMENT MICROPHONE
) Avoid extreme heat a d co de si g humidity.
Allow the micropho e to warm up whe bri gi g it
i from the cold.
) Rough ha dli g may damage the micropho e
eve if o marki gs are visible.
) Whe ot i use, keep the micropho e i its case.
IMPORTANT NOTICES
The small tip o ma y of our micropho es allows them
to capture the highest freque cies of your sou d.
Please be ge tle a d co siderate whe ha dli g the
micropho es with these tips. (Micropho es such as the
SR314 a d SR40V shield the tip withi their capsule,
a d are thus more durable.)
The M23 meets or exceeds ANSI Type 1 a d applicable
IEC 61094 requireme ts.
The micropho e is calibrated at the factory at 1 kHz
(i depe de t of a y freque cy weighti g). 
Earthworks recomme ds re-calibratio every ve (5)
years.
TROUBLESHOOTING
If you e cou ter issues while usi g your Earthworks
Audio micropho e, please make sure that
) Your micropho e is co ected to a active power
supply.
) Pha tom power is bei g supplied to the
micropho e.
) Your micropho e a d XLR cable are well
co ected.
) The micropho e is positio ed at a appropriate
dista ce from the sou d source.

M23
MEASUREMENT MICROPHONE
TROUBLESHOOTING
* External noise in your recording environment is
kept to a minimum.%
* Your recording space is at room temperature and
free of dust
If your issue persists after checking, please contact us
via our website.
SPECIFICATIONS
Frequency Response
3Hz to 23kH
Polar Pattern
Omnidirectiona
Sensitivity
34mV/Pa (Typical
Power Requirements
24-48V Phantom, 10m
Peak Acoustic Input
140dB SP
Output
XLR-3
Output Impedanc
600Ω, balanced between
pins 2 & 
Nois
20dB SPL (A weighted
Dimension
165 x 22 mm (6.5 x .860 in.
Weight
160g (.3lb)

WARRANTY
All Earthworks® products carr a limited warrant (parts and
labor). Please register our warrant at: earthworksaudio.com/
register. If ou have an problems with our Earthworks
products, please contact our warrant /repair department b
email at: [e-mail].
NOTE
This warrant onl applies to Earthworks microphones
purchased brand new. For microphones purchased/received
second-hand, please contact us via our website.
37 Wilton Rd. Milford, NH 03055
[e-mail]
© 2021 Earthworks Audio, Inc
M23
MEASUREMENT MICROPHONE