FiiO FD11

The FiiO FD11 is FiiO's new in-ear headphone with 10mm dynamic driver, made with liquid die-cast zinc alloy construction.

It features asymmetrical internal and external magnetic circuitry for a fine-tuned frequency response with high-resolution audio certification. Its design features a silver-colored capsule with a rounded shape to fit perfectly in the ear and enjoy your favorite tunes at their best.

FiiO's development team has designed the FD11 as part of the new "Bionic Conch" product series that aims to exceed expectations in both aesthetics and sound.

It stands out for its sound profile focused on the dynamic timbre of the driver, with special attention to vocals and genres such as folk, ACG and other styles of music.

For the FD11's 10mm carbon-based dynamic driver, the FiiO team chose to use the same materials found in the high-end FH15 and FF5 models, giving the FD11 a big boost to its sonic capabilities. The carbon-based material is ideal for the diaphragm, as it is lighter than aluminum, beryllium and other materials with nine times the tensile strength of steel.

The carbon-based diaphragm results in a detailed and highly responsive driver to easily move fast transients with minimal distortion due to minimal breakup.

The FD11 uses N52 neodymium magnets that give the headphone its sensitivity of 111dB/mW@1kHz. In simulation tests compared to the single external magnetic circuit of the typical dynamic driver, the FD11's dual asymmetrical internal and external magnetic circuits not only exhibit higher magnetic density but also a wider magnetic field. This means that the FD11 handles highly dynamic audio with ease and with lower distortion than is typical in its class.

The rear of the FiiO FD11's dynamic driver features a unique dual-layer cavity. This allows the internal construction to precisely control airflow, reduce distortion and allow the diaphragm to move freely. 

This results in more detailed highs, and above all, more robust, higher-resolution bass, with a driver that faithfully reproduces low-frequency detail at maximum speed.

Compared to the FD1, the FiiO FD11 is fully manufactured with high-end materials and techniques to make them stronger and more durable in daily use. Thanks to the die-cast shape, the inner surface of the FD11 is slightly irregular, just enough to reduce the convergence of sound waves and result in the purest sound.

Meanwhile, in addition to the new conch shape of the FiiO FD11, the C-shaped acoustic flute inside the earcups serves to enhance sound quality; this function focuses specifically on bass.

Getting into the small details, the shape of the FD11 is specifically designed to optimize the contact area between the earphone and the human ear, forming a triangular support structure so that it stays securely in your ear no matter what the situation.

The FiiO FD11s use a 0.78mm dual-pin cable, allowing you to easily upgrade your listening experience. The elbow-shaped headphone jack is also curved to make it easier to use and more comfortable to wear.

The FD11 is certified for high-resolution audio, as required by the JAS and Consumer Electronics Association (CEA).

• 1 x Earphones
• 1 x 3.5mm - 2 pin cable
• 3 x Balanced Silicones S,M and L
• 1 x User manual