FiiO FT7 Gold Diaphragm Open-Back Planar Headphones

Designed for for audiophiles and critical listeners, the FiiO FT7 are gold-diaphragm open-back planar headphones built around FiiO’s own 4.2" full-size planar driver with a class-leading 1μm ultra-thin PET diaphragm. FiiO's self-developed planar unit uses a patented 24K gold + pure silver multi-layer coil plating system and a 28 nm-grade trace process to balance high resolution with a rich tonal character, while the patented uniform magnetic field design, dual-sided N52 neodymium push–pull array (18 magnets per driver, up to 1.5T), and 5 Hz to 40 kHz frequency response work together to extend low-end capability, control distortion, and reveal fine musical detail.