JadeAudio/FiiO JF11

The JadeAudio JF11 uses a polyester fiber polymer composite diaphragm for its dynamic driver. This diaphragm is not only lightweight, highly rigid, and low-distortion but is also moderately damped and robust. Thanks to this diaphragm and meticulous tuning by engineers, the JF11 presents a clear and soft sound. Experience sweet, lush vocals with a charming vintage flavor.
 

In the long history of earbuds, the “U-shaped acoustic pipes for extended bass” is a noteworthy design in terms of both the sound quality produced and its distinctive aesthetics. Such a design was originally featured in the AIWA HP-V14 earbuds from Japan, which became popular worldwide and highly regarded by audiophiles.

The JadeAudio JF11 pays tribute to this classic by also adopting the U-shaped acoustic pipe design and optimizing it for the JF11’s specific design: The pipe’s diameter, length, and angle were chosen to increase the viscosity of air flow within the tube resulting in enhanced sound damping – which in turn lowers the cavity resonance frequency, and thus further improving bass extension.