FiiO FH3 Hybrid IEM – Demo | Hi-Res In-Ear Monitor

The FiiO FH3 targets audiophiles seeking studio-grade clarity in a compact hybrid in-ear monitor. A 10mm beryllium-plated dynamic driver manages bass while dual Knowles balanced armature drivers handle mids and highs — each assigned to a dedicated frequency band for clean separation across the full 10Hz–40kHz range. The shell is machined from aerospace-grade aluminum-magnesium alloy using 5-axis CNC precision, finished with FiiO's water ripple faceplate that combines ergonomic comfort with a refined industrial aesthetic.

FiiO's patented S.TURBO acoustic design channels the dynamic driver through turbine-shaped sound tubes that suppress unwanted high-frequency harmonics, yielding deeper and more controlled bass without muddying the midrange. Balanced pressure relief technology equalizes air pressure between front and rear chambers, keeping long listening sessions comfortable while preserving dynamics.

The package includes a high-purity monocrystalline copper cable with silver plating, MMCX connectors, and a gold-plated 3.5mm L-angle jack — a transparent, low-resistance link that lets the drivers perform at their best. Eleven pairs of eartips in four types and sizes are provided for customizing your seal and tonal balance. Hi-Res Audio certified and weighing just 7.3g per unit, the FH3 delivers detail-rich, well-imaged sound right out of the box.

Specifications