Planar magnetic headphone sounds dramatically better than traditional headphones, but also cost more to produce.
Planar magnetic headphone technology is a dramatic departure from traditional dynamic headphones. The unique design and functionality of planar magnetic transducers (or “drivers”) overcome many limitations inherent in cone drivers.
Planar magnetic transducers offer numerous benefits:
Responsiveness: Since the force created by the magnetic field is distributed across most of the diaphragm surface, the planar magnetic diaphragm moves faster and with far greater accuracy to the input signal.
Frequency and Distortion: The magnetic force that drives the lightweight diaphragm delivers rapid acceleration thus achieving a wide frequency response, low distortion and excellent sound quality.
Durability: Because the circuit pattern is spread flat across the diaphragm surface it can dissipate the heat generated by the current passing through it more efficiently. Additionally, planar magnetic transducers have few moving parts and can maintain performance without any sonic degradation. Dynamic drivers continuously degrade in performance over their life due to a multitude of moving parts and use of glue joints.
Amplifier Friendly: The circuits found in planar magnetic diaphragms present an almost purely resistive load to amplifiers, making it easy to drive. The impedance over the entire frequency range is completely flat vs. dynamic speaker which could have variances in impedance values over the frequency range.