About Aura Nebula: The Planar Magnetic Driver — Part 1

Hello everyone.

Thanks for your patience! We’re back and excited to share our latest update with you!

As we’ve mentioned before, the Aura Nebula uses a Hybrid 5-Driver system: one 10mm dynamic driver, one 6mm planar magnetic driver, two BA drivers, and one micro-planar driver. While dynamic and BA drivers are used everywhere in the industry, planar magnetic technology is still quite rare in portable audio.

To understand why we used it, we have to look at how it works. In a planar magnetic driver, the entire diaphragm moves forward and backward at the exact same time, like a flat piston. Because it moves as a single, uniform piece, it completely avoids the uneven vibrations and unwanted resonance that happen in traditional cone shapes. This means you get almost zero sound distortion. This flat-movement design also makes the driver react incredibly fast, allowing it to capture tiny details in the music with perfect accuracy. The timing (phase) of the sound is precise, the instrument positioning is clear, and the overall tone is clean and natural. It removes the harsh "shhh" sounds (sibilance) and rough edges, making it a very comfortable driver to listen to for hours. In many ways, it is the ideal setup.

However, it is not a perfect solution for everything. A planar driver cannot push air as deeply or as powerfully as a large dynamic driver, so it falls short when it comes to deep sub-bass and massive volume limits. It is also highly expensive to make. It uses an ultra-thin film that is only a few millionths of a meter thick, packed between powerful magnets. Because of this, it costs much more than a dynamic driver or even a BA driver. Since BA drivers have their own unique strengths, we also wanted to make sure we utilized them fully in our tuning.

With all of this in mind, we decided to give the 6mm planar magnetic driver a very specific job: covering everything from 4–5kHz and above. This specific upper-midrange and treble area is where human ears are the most sensitive. It is the exact zone that holds the details of a singer's breath, the sharp "edges" of vocals, the overtones of violins and trumpets, and the cues that tell your brain where an instrument is positioned in space. Because the planar driver reacts so fast and has such low distortion, it is the perfect candidate for this specific frequency range.

In short, our reason for adding the 6mm planar magnetic driver is straightforward: we looked at the data, tested the sound, and decided it was simply the best choice for the Aura Nebula. We can't wait for you to hear what it does for your music.

>Note: Banner image sourced from public domain NASA imagery (Tadpole Nebula, courtesy of NASA).