This package containes two calibrated measurement microphones plus accessories.
The M30 is a precision engineered 30kHz omnidirectional measurement microphone 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.
Accuracy, consistency, and reliability have made the Earthworks M30 measurement microphone the first choice of live sound professionals, acousticians, and researchers all over the world for nearly twenty years. Used on countless full-scale concert tours, as well as in scientific research laboratories, tropical rainforests, and rocket testing facilities, the M30 and its M-Series siblings have proven to be lab-grade audio instruments that can handle any environment.
The M30’s audio performance is unparalleled. It has a flat frequency response that extends from 3Hz to 30kHz, an exceptionally consistent omnidirectional polar response, 140dB SPL rating without distortion and no handling noise. With temperature compensated electronics, the M30 was built to deliver repeatable results no matter what the environment.
Extremely fast impulse response and linear phase response make the M30 ideal for use with high-quality FFT-based real-time audio system measurement software like SMAART™, SIM™, REW™, Electroacoustics Toolbox™, FuzzMeasure™ and others, as well as for use in PA system alignment and loudspeaker design.
Every M30 is individually hand-tuned and tested and is delivered with its own printed frequency response chart. An Electronic Calibration File (ECF) is generated for each microphone during final testing, and can be downloaded free of charge after product registration.
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
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: -40 deg C to +80 deg C ( -40 deg. F to 176 deg. F)
Humidity: Up to 90%
Re-calibration recommended every five (5) years
Frequency Response: 3Hz to 30kHz ±1/-3dB
Polar Pattern: Omnidirectional
Sensitivity: 34mV/Pa (-29dBV/Pa)
Power Requirements: 24 – 48V Phantom, 10mA
Max Acoustic Input: 140dB SPL
Output: XLR (pin 2+)
Output Impedance: 65Ω balanced (between pins 2 & 3)
Min Output Load: 600Ω between pins 2 & 3
Noise: 20dB SPL equivalent (A weighted)
Dimensions L x D: 229mm x 22mm (9 x .860 inches)
Weight: .5 lb. (225g)