Avantone Pro Planar Open-Back Headphones

Planar is Avantone's open-back planar magnetic headphone, built around 70 x 95 mm transducers with a 21 micron PET diaphragm and N50SH neodymium magnets rather than a conventional dynamic driver. Frequency response is rated 30 Hz to 30 kHz, with distortion under 0.1% at 100 dB, giving a flatter, more detailed response than most closed-back studio headphones at this price.

Impedance sits at 32 ohms with a sensitivity of 104 dB/1mW, and Avantone recommends at least 250 mW of drive power (100 mW minimum) for full output, so it benefits from a dedicated headphone amp on louder sources. The pair weighs 1.2 lb and ships with a 1.5 m 3.5 mm cable, a 3.5 mm to 1/4 inch adapter, and an eco-friendly carrying bag.