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Sony ECM-100

Small-diaphragm Capacitor Microphones By Paul White
Published April 2021

Sony ECM-100

We put Sony’s classy ‘hi‑res’ instrument mics to the test.

Sony have an enviable reputation for producing high‑end microphones, and their range has recently been augmented by two ‘pencil mic’ models: the ECM‑100U unidirectional microphone (pictured, above) and its ECM‑100N omnidirectional counterpart. Both use electret capacitor capsules, which puts them alongside the likes of DPA and Earthworks. Both models are designed with a view to instrument recording in the studio, as well as having a frequency response intended to make the most of high‑sample‑rate recording. The ECM‑100 microphone capsule is designed with a flat response and covers frequencies from 20Hz up to an astonishing 50kHz. This isn’t the first Sony mic to reach such highs — their previous C100, reviewed in February 2018 (see https://sosm.ag/sony-c100), had a similarly extended frequency response, but was even more unusual in that it took a dual‑capsule approach to do so. The capsule used in these ECM‑100 mics is in fact the same as that used to capture the ultrasonics in the C100, but is implemented here as a full‑range capsule. This is rather smaller than that of many other ‘stick’ mics, which probably accounts for both...

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Published April 2021