NikKTech published a review on the FiiO FA9 Six BA Driver Earphones With Detachable Cable
A quote from the article:
With a plethora of impressive and unique features including DLP 3D printed shells, 6 Knowles BA drivers and 4-way electronic crossovers per shell the brand new FA9 IEMs by FiiO are here to win over every audiophile out there.FiiO FA9 Six BA Driver Earphones With Detachable Cable Review
