Earthworks M30 30kHz Omni Measurement Microphone

30kHz omni measurement microphone

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.

• 30kHz flat frequency response
• 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
• Improved version of the SMAARTMIC™ previously offered by EAW
• 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
• Electronic Calibration File available
• Operating Temp Range: -20 deg C to +60 deg C ( -4 deg. F to 140 deg. F)
• Storage Temp Range: -20 deg C to +50 deg C ( -4 deg. F to 122 deg. F)
• Humidity: Up to 90%
• Re-calibration recommended every five (5) years

Earthworks M Series measurement microphones have become the accepted standard for reliable measurement and reference. They are accurate in the time and frequency domain and have exceptionally uniform polar response. They feature flat free-field frequency response, fast impulse response, and are remarkably stable with respect to temperature changes, meeting or exceeding Type 1 specifications. Our M Series measurement microphones are used and recommended by SMAART™, MLSSA™, Spectrafoo™, TEF™, RTA in addition to acoustic measurement systems manufactured by dbx, Rational Acoustics, DEQX and others.

The M30 is one of the most respected, accurate and reliable measurement microphones on the market. Consultants and Acousticians throughout the world rely on the M30 in performing their measurements and acoustical analysis. In addition, they have great respect for the near-perfect polar response of this microphone. The M30 provides an impressive frequency response of 5Hz to 30kHz, near-perfect polar response and it will handle 140dB SPL. For those looking for an extremely accurate and reliable measurement microphone, the Earthworks M30 is it.

The Earthworks line of measurement microphones (with exception to the M30BX, which is battery operated) require standard 48V phantom power and up to 10mA of current (which is within the industry phantom power standard). 10mA of current is required to supply our high current, bipolar Class A amplifier within the microphone that is made with all discrete components, with no capacitors in the signal path providing excellent phase response. This also allows the microphone(s) to feed long signal lines up to 300 feet (91m) and maintain the full frequency response of the microphone at the other end of the line, without any loss in high frequencies.

The M30 comes in a protective carton with a custom die-cut foam insert and its own individual calibration chart. For those who desire calibration files to interface with their software, these are available at no cost. In addition, any number of microphones can be matched for a nominal fee. The M30 requires standard 48V phantom power for operation.

The M30 is robust and can be used in a wide variety of environments from the most elegant of research laboratories to making measurements in the outdoors and tropics. In making acoustic measurements, the M30 will be your most trusted, accurate and reliable measurement instrument.