| The M30BX matched pairs come in beautiful wooden box.
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. The 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.
Designed to work with laptop computers, Earthworks battery operated version of the M30 has a built-in preamp with a +14dB gain switch. It 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.
Specifications
-Frequency Response: 9Hz to 30kHz
-Polar pattern: Omnidirectional
-Sensitivity: 8mV/Pa (-42dBV/Pa) or 40mV/Pa (-28dBV/Pa) with 14dB gain.
-Power requirements: 6V battery-P28 (2CR-1/3N) Lithium or 4 Lr44 Alkaline (approx 300 hours work time)
-Peak acoustic input: 140dB SPL, 126dB SPL w/14dB gain.
-Output: XLR (pin 2+) drives balanced or unbalanced input, drives most sound card inputs directly.
-Minimum output load: 600 ohm between pins 2 & 3
-Noise: 27dB SPL equivalent (A weighted)
-Dimensions: 8.65"L x 0.91"D
-Weight: 6.35 oz.
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