FiiO FH19 Hybrid IEM – Demo | Titanium 2DD+6BA Flagship

The FiiO FH19 is a flagship hybrid in-ear monitor that pairs two 13.7 mm push-pull dynamic drivers — co-developed with Tokyo Onkyo — alongside six custom Knowles balanced armature drivers in a four-way crossover. Listeners and reviewers consistently praise its balanced, genre-agnostic signature: deep sub-bass extension, rich vocal midrange, and extended treble without harshness.

Built around a 5-axis CNC-machined titanium center frame and 7000-series aluminum housing in FiiO's natural gray finish, the FH19 uses the semi-open S.Turbo bass architecture and a mid-frequency notch filter to deliver bass depth while controlling sibilance. Rubycon audiophile-grade film capacitors provide tight phase alignment across the crossover, and a suspended voice coil design on the dynamic drivers ensures uniform diaphragm movement.

Each unit includes an 8-strand, 224-wire monocrystalline silver cable, three interchangeable audio filters (Red, Green, Black), and 22 sets of ear tips spanning bass, vocal, balanced, foam, SpinFit, HS18, and HS20 profiles. The straight twist-lock cable supports swappable 3.5 mm TRS and 4.4 mm Pentaconn balanced plugs, working with smartphones, USB DAC/amp dongles, and dedicated DAPs. This is a demo unit with the same acoustic and build quality as new retail FH19 (product number HL02417).

Specifications