Glossary
Planar magnetic
A headphone driver that uses a thin diaphragm with an embedded conductor sandwiched between magnet arrays. Lower distortion and faster transients than dynamic drivers; heavier and pricier.
In a planar magnetic driver, the conductor (a flat conductive trace) is bonded to a thin film diaphragm. Magnets on both sides push the whole surface uniformly — versus a dynamic driver where only the voice coil pushes the diaphragm.
Strengths
- Distortion. Sub-0.5% across the band on premium models.
- Transients. Faster than dynamics — meaningful for orchestral and electronic transients.
- Bass. Extension matches dynamics; less roll-off.
Weaknesses
- Weight. Magnets are heavy; planar headphones often exceed 400 g.
- Drive requirements. Generally low impedance + low sensitivity; benefit from a dedicated amp.
- Cost. Entry-level planars start where dynamic-driver headphones top out.
Notable: Audeze, HiFiMan, Meze (hybrid), DCA. Sennheiser's HD 800 line is dynamic; the HE 1 is electrostatic.
Where this matters
Categories that use planar magnetic
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