Fiio FA9 6 Knowles Balanced Armature In-Ear Monitors

Fiio FA9 6 Knowles Balanced Armature In-Ear Monitors: The 6 Knowles BA drivers per ear, together with the carefully-designed 4-way crossover and low-frequency ultra-long sound tube, completely covers the entire audible frequency range with a sound that will take your breath away. Higher/ultra-high frequencies: handled by the SWFK-31736 driver that blends extreme resolution with rich sound. Mid-frequencies: E)-33877 custom driver collaboratively created by FiiO and Knowles, with powerful mids that give lush vocals. Lower frequencies: HODVTEC-31618 driver, with 2 woofers that produce dynamic and authoritative bass. The FA9 marks the first time FiiO has employed Knowles EJ balanced armature drivers, commonly used among high-end IEMs.