FiiO Jade Audio JT9 — full-size open-back planar headphones

FiiO has released affordable open-back audiophile headphones.

Photo: official website fiio

The new model uses 95 × 86 mm planar magnetic drivers with an ultra-thin PET diaphragm just 1 μm thick. A combined two-layer aluminium and sapphire coating provides efficient voice coil conductivity and greater structural rigidity to reduce unwanted distortion.

Photo: official website fiio

FiiO Jade Audio JT9 specifications

Type: full-size, open-back, planar
Frequency range: 7 Hz–40 kHz
Sensitivity: 95 dB/mW
Impedance: 20 ohms
Weight: 365 g.

A patented magnet system creates an even magnetic field to minimise uneven diaphragm movement. The headband has a multi-axis folding design, and the earcups rotate up to 90°. This allows the 365 g headphones to fit compactly in the included rigid waterproof case. Asymmetrical ergonomic earpads provide an even, comfortable fit.

Photo: official website fiio

Cables connect through standard 3.5 mm TS sockets on both earcups. The package includes a 6.35 mm adapter and two detachable 1.5 m oxygen-free copper cables: an unbalanced 3.5 mm cable and a balanced 4.4 mm Pentaconn cable.

Photo: official website fiio

FiiO Jade Audio JT9 will be available in black and dark brown for around $200.