Fiio FA19 In-Ear Monitors

The Fiio FA19 is the flagship of Fiio's all balanced armature lineup, fitting ten Knowles drivers into each earpiece. It is built for listeners who want reference level resolution with enough low end muscle to make armature bass feel physical.

Type and Technology

Each side carries ten balanced armatures in a three way configuration: four custom Knowles enhanced bass drivers in two compound HODVTEC packages, two Knowles ED midrange drivers, and four SWFK-31736 treble drivers in two compound packages. A combined physical and electronic crossover built with 0.1 percent tolerance Rubycon film capacitors keeps the bands coherent, while Fiio's patented S.Turbo turbine tube deepens bass extension and a notch filter removes the usual 8 kHz armature glare. A Monitor and HiFi tuning switch on each shell lets you move between a flatter studio balance and a livelier musical one.

Sound Character

Reviewers consistently describe the FA19 as warm yet neutral: custom bass armatures that punch close to a dynamic driver, rich natural mids, and smooth extended treble that stays detailed without sibilance. It is regularly named one of the strongest all armature designs near a thousand dollars, balancing musicality and technical performance.

Build and Comfort

The shells are DLP 3D printed from photosensitive resin at 0.0375 mm precision, so the fit is smooth and the weight stays around 7 g per side. The stock cable is a 224 wire pure silver Litz design with expanded MMCX connectors and twist lock swappable 3.5 mm and 4.4 mm plugs. MMCX also means the FA19 works with the Fiio UTWS5 Bluetooth Amplifier for true wireless listening.

Best For

Critical listeners and performers who want flagship armature resolution, isolation, and a tunable signature. It pairs beautifully with a quality portable source such as the Fiio BTR7. Explore more in-ear monitors and the full Fiio collection.

What's in the Box

• Fiio FA19 in-ear monitors
• Pure silver MMCX cable with swappable 3.5 mm and 4.4 mm plugs
• HB5 carrying case
• Balanced, bass, and vocal silicone eartips (S/M/L each)
• SpinFit and HS18 eartips (S/M/L each)
• Foam and dual flange eartips
• Magnetic cord clip, cleaning brush, and MMCX quick release tool
• Quick start guide

Specifications