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. 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 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.
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.
Earthworks M30 Features
- One of the Industry's Most Popular Measurement Microphones
- Meets or ExceedsType1 and applicable IEC 61094 requirements
- 30kHz Free-Field Frequency Response
- 140dB SPL Max Acoustic Input
- Omnidirectional polar pattern
- Ideal for SMAART™, MLSSA™, Spectrafoo™,TEF™, RTA and all "Audio Band" Measurements
- Requires 24-48V Phantom Power
- M30 30kHz Omni Measurement Microphone1
- Frequency Response3Hz to 30kHz
- Polar PatternOmnidirectional
- 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 (LxD) (9x0.86" (229x22mm)
- Weight 0.5 lb (225g)
- 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)
- HumidityUp to 90%