The FiiO FH11 sits at the entry point of FiiO's hybrid in-ear monitor range, combining two distinct driver technologies in a single compact shell to deliver a balanced and engaging listen at an accessible price. It is the companion to the single-dynamic-driver FD11 in FiiO's entry-level “Little Conch” series, and shares acoustic design principles with more expensive models in the FH range.
Hybrid Driver Architecture
Inside each earpiece, a 10mm dynamic driver with a carbon-based diaphragm handles the low and mid-bass frequencies, while a custom balanced armature driver takes responsibility for the midrange and treble, including emphasis at 14kHz and 18kHz to bring clarity to instruments such as flutes and cymbals. The carbon diaphragm is claimed to be nine times stronger than steel at one-quarter of the weight, offering the stiffness needed for precise transient response without added mass.
The two drivers are housed within a three-chamber acoustic cavity that keeps their outputs acoustically isolated before they combine at the nozzle. A C-shaped acoustic flute ā a labyrinthine internal channel ā lengthens the effective sound tube to extend sub-bass output, with higher frequencies naturally dissipating along the pathway.
Construction and Shell Design
The earpiece shells are formed from liquid die-cast zinc alloy, giving the FH11 a reassuringly solid feel relative to its modest price. The rounded, conch-inspired ergonomic shape is designed to follow the natural contours of the outer ear for a secure and comfortable fit during extended listening sessions. A recessed 0.78mm 2-pin socket accepts the supplied cable or compatible aftermarket cables.
Cable and Connectivity
The supplied detachable cable uses four strands of 120-core oxygen-free copper wire and terminates in a gold-plated 3.5mm single-ended jack. The cable measures approximately 1.2 metres in length. The recessed 2-pin socket design reduces mechanical stress on the connector. Each earpiece is colour-coded with a red indicator on the left and a blue indicator on the right socket ring.
Hi-Res Audio Certification
The FH11 carries Hi-Res Audio certification from the Japan Audio Society (certificate HRA-0085-92, issued April 2023), confirming that its transducer meets the requirement for high-frequency reproduction capability of 40kHz or above.