Earthworks M30 Omnidirectional Measurement Microphone

The M30 is a precision omnidirectional measurement microphone with a flat 3 Hz to 30 kHz response, built for work where accuracy is the whole point - system tuning, acoustic analysis, and scientific measurement. Earthworks notes it has served on full-scale concert tours as well as in research laboratories, rainforests, and rocket-testing facilities, which speaks to its consistency and reliability.

Its omnidirectional pattern stays uniform across the band and its fast impulse response resolves transients cleanly, so the data it returns reflects the room rather than the mic. It handles 140 dB SPL, runs on 24 to 48 V phantom over XLR, and pairs with common measurement platforms. A dependable reference for any serious tuning or analysis rig.