ECM (Electret Condenser Microphone) elements are the most critical front end for converting sound waves into electrical signals.
Most of the microphone performance, such as sound quality, frequency response, noise, and directivity, is determined by this element.
Four-leaf’s ECM elements are used in high-end and professional microphones in Japan and worldwide. As an example, it is used in Audio-Technica in Japan.
Many variations can be used from orchestra to vocals, from lavalier microphones to shotgun microphones.
Four-leaf microphone capsules are manufactured in Japan by skilled craftsmen.
Microphones that use this element are very expensive. Therefore, these mic elements are unique, difficult to obtain, and a bit expensive.
However, it is very cost-effective.
Replace the inside of the microphone to upgrade to high performance.
It can be used for new brand microphones and acoustic measuring instruments.
Modifying a microphone requires knowledge of electronic circuits and craftsmanship.
The datasheet is a guide.
Different manufacturers have different measurement methods, leading to bias in good information.
Performance is affected by design and compatibility.
The only way to know the actual performance is to test it yourself. But the price and many reputations are often correct.