FiiO FA9 In-Ear Monitors (Apos Certified)

6 Knowles balanced armature drivers A balanced armature uses a delicately balanced coil within a magnetic field to reproduce detailed sounds from across the frequency range. In the FA9, a HODVTEC-31618 dual-driver produces vigorous, authoritative bass with two subwoofers. An EJ-33877 dual-driver delivers natural, lush mids. And an SWFK-31736 dual-driver produces intricate, gentle treble. Combined, these drivers produce an ultra-clarified sonic experience.  3 sound adjustment switches The FA9 features three sound adjustment switches on each IEM, allowing you to tailor the sound signature to your liking. It works by individually adjusting the impedance of the FA9’s drivers. Bassheads can dial up the low-end, neutral EQ lovers can keep things balanced, and experimental audiophiles can discover a sound unique to them.  Pro-grade 8-strand silver-plated copper wire Copper and silver are locked in an eternal struggle for audiophile wire dominance. Silver is more conductive; copper is more