Description

Accurate measurement starts with a microphone that doesn’t editorialize the sound it hears. The Earthworks M23 is built for exactly that job: an omnidirectional small-diaphragm condenser with a flat frequency response extending to 23kHz — the number that gives the mic its name. Sold here as a matched pair, these two units track each other closely enough to support dual-mic techniques and comparative analysis where consistency between capsules actually matters.

Room acoustics analysis and correction, where you need to trust the numbers you’re seeing
Sound system calibration and troubleshooting on-site
Loudspeaker design and quality control benchmarking
Any free-field measurement task where an omnidirectional pickup pattern is required

Because the M23 is omnidirectional, it captures a true free-field response without the off-axis coloration that directional mics introduce — critical when you’re trying to characterize a room, a system, or a loudspeaker rather than a performer. Pair that with the extended high-frequency reach, and you get a measurement chain that resolves detail well past the range most vocal or instrument mics bother covering.

Whether you’re calibrating a control room, verifying loudspeaker specs on the production line, or diagnosing a problematic PA install, the M23 pair gives you two known quantities instead of one — a small but meaningful upgrade for anyone doing serious acoustic work.