Measurement Series
Omnidirectional measurement microphones
The M Series has become the accepted standard for affordable, reliable reference and measurement microphones that are accurate in the time domain and frequency response. They are remarkably stable with respect to temperature and atmospheric conditions and are optimized for clean, very fast impulse performance providing accurate wideband response with virtually no handling noise.
- 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
- Requires 48V Phantom Power
- Each M Series microphone is delivered with its own calibration chart providing its individually measured open-circuit sensitivity and the frequency response curve
If you would like an impulse response chart with your microphone, you must make the request to your dealer at the time of purchase.
Models
The M23 is our economy model that is widely used for room measurements for recording facilities and acoustical room design and treatment. This model is widely used with SMAART™ measurement systems.
The M30BX is a 30kHz battery operated measurement microphone. Its output cable can be plugged directly into a sound card of most laptop computers making it ideal for measurements in remote locations.
The M30 is our most popular measurement microphone and is widely used by acousticians, audio equipment manufacturers and sound consultants throughout the world.
The M50 is our top of the line measurement microphone for those who require the very best. It is the microphone of choice for governmental, aerospace and specialized sound labs for making critical measurements with extended high frequency response.
M50, M30 and M30BX matched pairs come in custom, handcrafted wooden boxes
M Series models are available in matched pairs or matched groups of any number.
Electronic calibration files are available for every Earthworks microphone for an extra cost. These files can be used to import the microphone’s amplitude frequency response directly into your measurement system.
Related Accessories
ADP1 1/2″ calibrator adaptor
ADP2 XLR to RCA connector adapter for M30BX
MC1 Standard microphone clip
MC2 Shock mount microphone clip
OMW1 Foam teardrop windscreen
OMW2 100 mph foam windscreen
OMW3 Standard foam windscreen
ECB1 Cherry box for 2 M30 mics
EWB2 Wood box for 1 M30 or 1 M50 mic
EWB3 Wood box for 1 or 2 M30BX mics
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