FiiO FA9 Knowles 6 Balanced Armature Driver in-Ear HiFi Earphone with Detachable MMCX monocrystalline Silver-Plated Copper Cable DLP 3D Priting, High Resolution for Smartphones/PC/Tablet (Black)
6 Knowles BA driver custom setup.Higher/ultra-high frequencies: handled by the SWFK-31376 driver that blends extreme resolution with rich soundMid-frequencies: EJ-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.Custom Knowles EJ BA driver.The FA9 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 for excellent mid-frequency performance with hauntingly realistic vocals. 80.6mm ultra-long sound tubeThe 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. Four-way crossoverThe four-way crossover design has been applied so that each driver works perfectly in harmony with each other for seamlessly coherent low, middle, high, and ultra-high frequencies. With dynamic bass, crystal clear yet lush vocals, and extremely detailed yet pleasant treble, the FA9 will get you excited about your music again.4th generation DLP 3D printingNow in its 4th generation, the printing accuracy, efficiency, and curing uniformity have been significantly improved from the past iterations of DLP 3D printing. This allows the FA9 to have an extremely precise and robust structure that is fully optimized for audio that is difficult to achieve with traditional manufacturing methods.
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