Earthworks has become the accepted standard for affordable, reliable reference and measurement microphones. These microphones are accurate in the time domain and frequency response. Earthworks measurement microphones are optimized for clean, very fast impulse performance to provide accurate wideband response. They have virtually no handling noise and are remarkably stable with respect to temperature and atmospheric conditions. Our M Series measurement microphones are used by SMAART™, MLSSA™, Spectrafoo™, TEF™ and RTA in addition to acoustic measurement systems manufactured by dbx, DEQX and others. All models are available in matched pairs.
		Omni - 3Hz to 50kHz. The M50 offers extended frequency response and extraordinary impulse response for the most challenging of measurement applications.
		Omni - 5Hz to 30kHz. The M30 is the standard for field and laboratory acoustic measurements. It features a very uniform frequency response and excellent impulse response.
		Omni - 9Hz to 30kHz. Designed to work with laptop computers, our battery operated version of the M30 has a built-in preamp with a +14dB gain switch.
		Omni - 9Hz to 23kHz. The M23 is an improved version of the EAW SMAARTMIC™ which is highly accurate and dependable low-cost alternative for room analysis and other measurement applications.
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