FIIO FT5 open-back planar headphones

The FIIO FT5 represents FIIO’s first foray into planar magnetic headphone technology, delivering a level of sound quality, detail and spatial realism that surpasses traditional dynamic driver designs. Featuring a massive 90mm planar magnetic driver with a micron‑thin diaphragm and high‑density neodymium magnets, the FT5 offers exceptional clarity, low distortion and a wide frequency response from 7 Hz to 40 kHz, creating an expansive and immersive listening experience.

Built for both audiophiles and serious music enthusiasts, the open‑back acoustic structure ensures a natural and airy soundstage, making the FT5 ideal for critical listening at home or in a dedicated audio setup. The precise airflow control and carefully engineered rear housing help balance front and back wave dynamics, resulting in detailed highs, rich mids and controlled bass that bring your music to life.

Comfort is essential for long listening sessions, and the FT5 delivers with a lightweight yet durable magnesium‑aluminum alloy frame that resists vibration while reducing overall weight for a more comfortable fit. The earcups feature a 3‑axis swiveling design, adapting effortlessly to any head shape for improved sealing and comfort.

The FT5 includes a premium 1.5 m silver‑plated monocrystalline copper cable with a swappable termination system and four connector options — 3.5 mm, 4.4 mm balanced, 6.35 mm adapter and XLR‑4 balanced adapter — ensuring broad compatibility with portable players, desktop DAC/amps and professional audio gear. Two sets of earpads — suede and protein leather — let you tailor the sound signature and comfort to your preference.

With a sensitivity of 110 dB/1 Vrms (@1 kHz) and a modest 36 Ω impedance, the FT5 remains easy to drive even from portable audio sources while still being capable of revealing high‑resolution detail when paired with capable amplification.

The FIIO FT5 headphones are a high‑fidelity choice for discerning listeners who want the transparency, precision and dynamic responsiveness of planar magnetic technology combined with thoughtful design, premium materials and versatile connectivity.