Mid-frequency notch filter

The FH19 features a variety of different drivers and acoustic design principles. Scientifically tuning each part so that they work in a harmonious whole is the essence of high-level tuning. To achieve this, the FIIO development team has specially designed a “mid-frequency notch filter” for the FH19 hybrid earphones.

Focus on small details, achieving large upgrades Suspended voice coil

To achieve flagship-level driver performance, the FIIO FH19 utilizes a suspended voice coil design. In this design, the voice coil leads are routed directly from the center hole beneath the diaphragm, allowing them to float within the gap. This approach eliminates unnecessary contact and avoids additional adhesive load. Compared to conventional diaphragms*, the suspended voice coil design ensures uniform and smooth diaphragm movement, minimizing interference from other factors and fully unleashing the  inherent potential of the diaphragm.

Crafted with meticulous attention to sound quality, the flagship FH19 features the same high-precision Japanese film crossover capacitors as the FA19 that exhibit exceptional accuracy in phase alignment. While conventional resistor-based crossover components typically have an accuracy error of around 1%, the FH19 achieves an impressively low error rate of 0.1%. Furthermore, compared to ordinary ceramic capacitors, the FH19 not only achieves more precise crossover points but also effectively enhances high-frequency resolution and overall results in a more detailed sound.

Scalpel-like accuracy Rubycon audiophile-grade film capacitor crossovers

The FIIO FH19 uses six Knowles balanced armature drivers as its mid and high-frequency sound units. In order to achieve even higher levels of vocal sound quality, FIIO collaborated with Knowles to create a custom mid-frequency-enhanced balanced armature driver. By adding acoustic vents to the rear cavity of the driver, the mid-frequency driver gains more sound energy compared to typical mid-frequency drivers. This further unlocks the inherent advantages of the mid-frequency driver, resulting in rich and mellow vocals that are hauntingly realistic, as if the singer was right next to you.

Custom Knowles Enhanced mids BAs

“While the basic design is derived from the FH9, the FH19 builds upon its predecessor and surpasses it by updating the low-frequency and mid-frequency drivers and implementing them into a more precisely controlled four-way crossover design. In the low frequencies, custom push-pull dual-dynamic driver units are employed, and a ‘turbine low-frequency boost technology’ is used for physical low-pass filtering for relaxed yet natural bass. For the mid-frequencies, FH19 introduces an innovative ‘3+1 semi-open’ acoustic layout of balanced armatures. This is complemented by a newly designed resonant cavity, allowing for two separately managed mid-frequency zones that result in richer and more emotionally engaging mids. For the high frequencies, the FH19 retains the coaxial design with an acoustic guide while also incorporating Rubycon audiophile-grade film capacitors. This combination allows for high resolution while maintaining excellent treble tone.”

Four-way acoustic design

Inspired by turbochargers found in supercars, the FIIO development team meticulously created the S.Turbo patented acoustic design. This design ingeniously leverages sound wave guidance properties, enhancing bass performance through a turbine-shaped structure. The result is deep and vibrant bass. Additionally, the design cleverly filters out excess mid-to-high-frequencies from the dynamic driver, ensuring smooth transitions between the low and mid-high frequencies. The result is a more powerful and robust sound.

Turbocharged energy Patented S.Turbo design

The FIIO FH19 employs 7000 series aluminum*, which ensures a durable and strong shell while reducing the weight of the earphones. Thanks to this aluminum, the FH19 still provides a comfortable wearing experience even with more drivers and a more complex acoustic design.

*7000 series aluminum alloy is widely used in aircraft fuselages, wings, and other important components. It has high strength, rigidity, and corrosion resistance. It is also known as 7000 series aerospace aluminum.

The FIIO FH19 features build quality worthy of a flagship, to which the titanium midframe contributes. Its luxurious feel and uniquely charming titanium color give off a high-end appearance. Being the part of the earphone that is most frequently touched, the midframe’s pure titanium metal’s rigidity and corrosion resistance thoroughly protect the rest of the earphone’s shell, making it resistant to everyday wear and tear, truly embodying the essence of a flagship product.

7000 series aluminum shell

Titanium midframe

Titanium+7000 series aluminum construction

The FH19, befitting its flagship IEM status, comes with three pairs of swappable audio filters. Each filter has different internal damping and mesh density, allowing you to adjust the sound according to your preference:

Swappable audio filters

*Green filter is pre-installed. Other filters are included in the carrying case.

The FH19 comes standard with a high-purity pure silver cable. Each of the 8 strands consists of 28 wires totaling 224 wires. Each individual wire is insulated with enamel, and the cable is twisted in Litz braids. The outer sheath is made from imported transparent eco-friendly TPU, enhancing its transparent appearance. Additionally, this material effectively prevents the cable from yellowing over extended use and becoming stiff in low-temperature environments.

Pure silver for pure sound High-purity monocrystalline silver cable

Flagship-grade comfort Optimized wearing ergonomics 

The semi-open design has been highly praised in the FIIO FH9, FH7S, FH5S, and FD5.  In the FH19, this proven semi-open design is once again utilized and has been specially tuned to combine with FIIO’s front and rear cavity balanced pressure relief technology – resulting in and more natural and relaxed sound, with a wide soundstage. This design efficiently balances the internal air pressure, eliminating the feeling of pressure on the eardrum which also helps to protect your hearing. Enjoy  listening for long periods without fatigue.

Unfatiguing listening,

large soundstage Semi-open design

Befitting of its flagship status, included with the FH19 are 22 pairs of ear tips of various shapes and sizes* that allow you to have a comfortable listening experience, no matter what your preferences are. Not only are the popular HS18 and SpinFit ear tips included, but the new HS18 silicon ear tips are also included.

Listen the way you want 22 pairs of ear tips included

Earphone type: Dynamic-balanced armature hybrid in-ear monitors

Wearing method:  Around-the-ear in-ear monitors

Drivers per ear:  Push-pull dynamic drivers set*1, totaling 2 drivers Custom Knowles enhanced mid-frequency  balanced armature*2, totaling 4 drivers Knowles SWFK treble balanced armature*1, totaling 2 drivers

Frequency response: 8Hz-40kHz

Impedance: 16Ω@1kHz

Sensitivity: 109dB/mW@1kHz

Cable type: 8 strands totaling 224 wires of high-purity pure silver

Cable length: About 1.2m

Ear unit weight: About 12g (excluding cable)

Earphone connector: Expanded MMCX

Audio plug: Straight twist-lock swappable

Basic specifications

①--------------------------------------------------FH19 packaging box*1 

②------------------------------------------------------Quick start guide*1

③-------------------------------------------------------HB7 carrying case*

④------------------------Pure silver swappable plug earphone cable*1

⑤---------------3.5/4.4mm swappable plugs*1 (4.4mm pre-installed)

⑥-----------Foam ear tips*2 pairs (M),  Bass ear tips*3 pairs (S/M/L),                                                           Balanced ear tips*3 pairs (S/M/L)  

                           (M size pre-installed), Vocal ear tips*3 pairs (S/M/L)

⑦----------------------------------- Red/black/green audio filters*1 set

⑧----------------------------------------------------Magnetic cable clip*1

⑨-------------------------------------------------------- Cleaning brush*1

⑩---------------------------------------------MMCX quick release tool*1

⑪-----------------------------------------SpinFit ear tips*3 pairs (S/M/L)

⑫-------------------------------------------HS18 ear tips*3 pairs(S/M/L)

⑬---------------------------------HS20 silicone ear tips*3 pairs (S/M/L)

Parts list