FiiO FD15 HiFi Dynamic Driver In-Ear Earphone with Detachable MMCX Cable (Silver)

FD15 takes audio technology to new heights with its breakthrough features. Featuring FiiO's latest acoustic patent, the F.T.B.S "Tesla Valve" low-frequency loading technology, FD15 sets a new standard for sound reproduction. With its premium manufacturing quality and exquisite craftsmanship, this headphone is the ideal choice for audiophiles seeking unparalleled audio performance. It promises to deliver an immersive listening experience that surpasses expectations.

One of the standout features of FD15 is its truly high-end headphone-grade metal diaphragm. Made from a unique combination of magnesium-aluminum alloy dome and DLC suspension, this innovative design enhances the listening experience in multiple ways. It faithfully reproduces the spacious and soft essence of "circle taste" while advancing high-frequency extension and resolution. The result is a bright and transparent sound with refined delicacy.

FD15 incorporates the F.T.B.S "Tesla Valve" low-frequency loading acoustic patent technology, utilizing advanced powder metallurgy to ensure precise calculations. The earcup cavity's branch length, angle, and quantity are engineered to match the acoustic design of the Tesla Valve, resulting in a fluidic structure that greatly enhances the headphone's ability to reproduce deep, resonant low frequencies. Prepare to be captivated by a profound and immersive bass response.

The FD15 comes with a cable crafted from authentic Furukawa single crystal copper and Furukawa single crystal copper plated with silver. Sourced from Japan, these materials offer a large cross-sectional area of 22AWG, rivaling the quality of high-end HiFi headphone cables found in the thousand-dollar range. Luxury is now affordable and accessible.

Taking inspiration from Hi-End level audio design principles, FD15 incorporates a W-shaped independent suspension design in its headphones. This innovation increases the effective vibrating area by 30% compared to conventional diaphragm designs of the same size. The larger effective diaphragm area and greater amplitude allow the acoustic core unit to store more sound energy, resulting in a more dense and grounded auditory experience for listeners.

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