The FiiO FH19 is an advanced in-ear hybrid earphone designed specifically for audiophiles and offers a variety of state-of-the-art functions. Equipped with a total of eight drivers per earpiece, including two 13.7 mm push-pull dynamic drivers and six customised balanced armature drivers from Knowles, the FH19 offers balanced and detailed sound reproduction across a wide frequency spectrum from 8 Hz to 40 kHz. With an impedance of 16 ohms and a sensitivity of 109 dB/mW, the FH19 delivers impressive sound quality. The high-purity silver cable is 1.2 metres long and has MMCX plugs and interchangeable 3.5 mm and 4.4 mm jack plugs. The titanium and aluminium housing combines robustness with lightness and ensures a natural and relaxed sound. The patented S.Turbo acoustic design enables deeper and more powerful bass, while the dynamic push-pull drivers provide precise and powerful bass reproduction. The midrange drivers are arranged in a semi-open 3+1 configuration for rich and emotional sound reproduction. Two Knowles SWFK drivers provide high resolution and detail in the high frequency range. The FH19 comes with three pairs of interchangeable sound filters so that the sound can be customised to personal preference. The ergonomic design of the FH19 allows a 10 degree angle adjustment for a secure and comfortable fit. Other features include a floating voice coil to minimise distortion and high-quality Rubycon film capacitors that ensure precise crossover points in the crossover.