FiiO FA9 Earphone Wired Headphones in-Ear HiFi 6BA with Detachable MMCX monocrystalline Silver-Plated Copper Cable DLP Hi-Res for Smartphones/PC/Laptop/Tablet (Clear)

HIGH PERFORMANCEThe 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. ^^ More lifelike soundThe FA9 headphones marks the first time FiiO has employed Knowles EJ balanced armature drivers, commonly used among high-end IEMs. FiiO and Knowles collaborated to come up with the custom EJ-33877 driver for use in the FA9 earphones for excellent mid-frequency performance with hauntingly realistic vocals. ^^ 80.6 mm ultra-long sound tubeThe FA9 earbuds employs a specially-designed, ultra-long sound tube 80.6 mm in length.

The sound tube acts as a low-pass filter that effectively filters out unneeded extra mids and highs from the drivers to ensure a seamless frequency response. The sound tube also ensures the mid-bass is smooth and clean while enhances bass texture in general. ^^ 3 sound adjustment switches, 8 possible soundsThe headphones FA9s use of electronic crossover technology allows you to tune the sound to exactly the way you want with 3 sound adjustment switches. The impedance, bass, mids and treble adjustment depends on what music you are listening or what your preferences are! ^^ REMOVABLE CABLEDetachable MMCX design including a 3.5 mm-terminated cable made of 8-strand monocrystalline silver-plated copper cable gives better audio transmission performance under the naturally-occurring yet adverse skin effect.

What this means for actual listening are improved bass and mids, as well as more coherency between all audio frequencies.