Earthworks Audio M30 BX

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.

The Earthworks M30 is a very cost effective reference microphone for SMAART™, MLSSA™, Spectrafoo™, TEF™ & RTA and all “audio band” measurements. It has a flat frequency response, fast impulse response and exceptional polar characteristics. Requires 48V phantom power.
 
Designed to work with laptop computers, this battery operated version of the M30 has a built-in preamp with a +14dB gain switch.

The Earthworks M30BX Specifications:

• Frequency response: +-1dB 9Hz to 27kHz, +1/-3dB 5Hz to 30kHz

• Polar Pattern: Omnidirectional

• Sensitivity: 8mV/Pa (-42 dBV/Pa)

• Power requirements: 48V phantom, 10mA

• Max acoustic input: 150dB SPL

• Peak output voltage: 10V

• Output: XLR intended to drive a balanced transformerless input (pin 2+)

• Min output load: 600ohms between pin2 and 3

• Noise: 27dB SPL equivalent (A weighted)

• Dimensions (LxD): 229mm x 22mm (9 x .860 inches)

• Influence of magnetic field: 80A/M induces less than 52dB SPL equivalent