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A Case Study on a Dynamic Driver: How Electromagnet Can Improve the Performance of a Micro Speaker

How can designers improve the sound quality of next-generation audio products when the market is demanding smaller devices? Bigger sound requires bigger speakers, right? Not necessarily. One approach is to re-evaluate the materials you are using. Alloy materials used within speakers to conduct sound has not changed drastically in the last 10-15 years. However, developments in the performance of electromagnet alloys can replace standard electrical iron/low carbon steel and provide higher efficiency and performance. The result is better sound quality, smaller devices, and extended battery life. We studied the performance of the transducer with different electromagnets in magnet assembly and reported the comparison to provide better insight for the next-gen audio dynamic drives.

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