A planar driver produces sound in a uniform, planar wavefront, allowing sound to reach the ear at the same time across the diaphragm surface. This time-aligned sound delivery helps preserve phase coherence, resulting in a wider soundstage and more accurate imaging.

Leveraging this planar architecture, the Otowahr planar MEMS driver delivers an enhanced soundstage and precise imaging, creating a more natural and immersive listening experience—especially in compact, in-ear audio devices.

Diaphragm Motion: Dynamic vs. Planar

In a dynamic driver, the diaphragm is driven at a few concentrated points (point load), typically where the voice coil connects. This creates uneven diaphragm movement, which can distort the sound wave and reduce clarity.

By contrast, a planar driver applies a distributed load across the diaphragm surface, producing more uniform movement. This results in a better-shaped sound wave, improving clarity, imaging, and overall fidelity.

High Q & Low Mass: The Key to Wide Bandwidth

From the mass-spring-damper model, a driver with high Q and low moving mass generates a wider frequency bandwidth, enabling more accurate and extended sound reproduction.

The Otowahr planar MEMS speaker combines a high-Q diaphragm with an ultra-light overall structure, providing exactly what a high-performance driver needs: enhanced bass extension without sacrificing clarity or responsiveness.