

FiiO FA19 10BA In-Ear Monitors
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FiiO FA19 10BA In-Ear Monitors
Overview
The FiiO FA19 is FiiO's flagship all-balanced-armature in-ear monitor, with ten Knowles BA drivers in each ear. It's built for listeners who want detailed, coherent, reference-like sound, and a switch on the back of each earpiece lets you choose between a clean Monitor tuning and a fuller HiFi tuning.
Each earpiece uses four custom Knowles bass drivers developed with FiiO, two Knowles ED mid drivers, and four Knowles SWFK treble drivers, split by a physical and electronic three-way crossover with 0.1%-tolerance Rubycon capacitors. A mid-frequency notch filter smooths the mids and reduces sibilance, FiiO's patented S.Turbo design keeps the bass-to-mid transition clean, and a negative feedback bass system in the DLP 3D-printed shell deepens the bass while venting the front cavity for comfort.
Each earpiece weighs about 7g. The included 8-strand, 224-wire pure silver Litz cable uses expanded MMCX connectors and twist-lock swappable 3.5mm and 4.4mm plugs. It comes with an HB5 case and a wide range of ear tips, including SpinFit and HS18 sets, and it's Hi-Res Audio certified by JAS and CEA.
Simcoe Audio Video Insight
The FA19 rewards a little setup time. Start in Monitor mode for the most neutral, detailed sound, then flip to HiFi mode when you want more bass weight and fuller mids. With ten BA drivers per side, ear tip fit makes a real difference, so work through the included tip sets until you get a solid seal. At 10 ohms and 106dB/mW it's easy to drive, so a quiet source matters more than raw power.
More Info
Why the FiiO FA19 Stands Out
10 Knowles BA Drivers per Ear
4 custom bass, 2 ED mid, and 4 SWFK treble drivers.
Monitor/HiFi Switch
Flip between a clean monitor tuning and a fuller HiFi tuning.
Three-Way Crossover
Rubycon capacitors with 0.1% tolerance.
Deep, Controlled Bass
Negative feedback bass system and S.Turbo acoustic design.
Pure Silver Cable
8-strand, 224-wire Litz cable with 3.5mm and 4.4mm plugs.
Light 3D-Printed Shells
DLP printed to 0.0375mm precision; about 7g each.
Buyer's Guide
Who It's For
- The Detail-Focused Listener: Wants resolution and separation from an all-BA design.
- The Audio Producer: Wants a monitor tuning for checking mixes on the go.
- The Balanced-Source Owner: Wants a 4.4mm-ready IEM for a DAP or dongle DAC.
How It Compares
Compared with FiiO's FH9, which pairs a 13.6mm dynamic driver with six BAs, the FA19 uses ten balanced armatures and no dynamic driver, plus a Monitor/HiFi switch and a pure silver cable.
FiiO FA19 10BA In-Ear Monitors Specifications
| General Information | |
|---|---|
| Model | FiiO FA19 |
| Brand | FiiO |
| Product Type | Wired in-ear monitor, 10 balanced armatures per ear |
| Wearing Style | In-ear, over-ear cable routing |
| Audio | |
| Drivers | 4 x custom Knowles bass BA, 2 x Knowles ED mid BA, 4 x Knowles SWFK treble BA |
| Crossover | Physical + electronic three-way; Rubycon capacitors (0.1% tolerance) |
| Tuning Switch | Monitor / HiFi |
| Acoustic Design | Mid-frequency notch filter; S.Turbo; negative feedback bass system |
| Frequency Response | Up to 40kHz |
| Impedance | 10 ohm @ 1kHz |
| Sensitivity | 106dB/mW @ 1kHz |
| Certification | Hi-Res Audio (JAS, CEA) |
| Cable | |
| Cable | 8 strands, 224 high-purity pure silver wires, Litz braid |
| Connector | Expanded MMCX |
| Plugs | Twist-lock swappable 3.5mm and 4.4mm (4.4mm pre-installed) |
| Length | About 1.2m |
| Physical Specifications | |
| Shell | DLP 3D-printed resin (0.0375mm precision) |
| Weight | About 7g per earpiece (excluding cable) |
| In the Box | HB5 case, silver cable, 3.5/4.4mm plugs, foam, bass, balanced, dual-flange, vocal, SpinFit, and HS18 ear tips, magnetic cord clip, cleaning brush, MMCX tool |
| Colours Available | Translucent Black |
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