Wired IEMs
FiiO FA9
72Good
$500
Full review dataFiiO FA9 vs FiiO FD7: which should you buy?
On aggregated review scores the FiiO FD7 comes out ahead with an HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: FiiO FD7 - Great overall at around $445.
Score breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
FiiO FA9
Sound7.5
Value6.5
FiiO FD7
Sound8.5
Value7.0
Specifications
| Spec | FiiO FA9 | FiiO FD7 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $500 | $445 |
| HearWiki score | 72 / 100 · Good | 84 / 100 · Great |
| Released | 2020 | 2023 |
| Audio | ||
| Driver | 6 balanced armature drivers (Knowles) | 12mm pure beryllium diaphragm dynamic driver |
| Driver size | - | 12 mm |
| Drivers per side | 6 | 1 |
| Frequency response | 15Hz-40kHz | 10Hz-40kHz |
| Impedance | 16-32 @1KHz | 50 Ω |
| Sensitivity | 110 dB/mW | 111 dB/mW |
| Battery | ||
| Wireless charging | No | - |
| Features | ||
| ANC type | none | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | none | buttons |
| Design | ||
| Weight | 6.2 g | 11 g |
| Water resistance | none | - |
| Foldable | No | - |
| Detachable cable | Yes | Yes |
| USB-C | No | - |
What reviewers said
FiiO FA9
The FiiO FA9 is a flagship six-driver balanced-armature in-ear monitor that prioritizes tuning flexibility through its switchable sound profiles and a robust, 3D-printed shell. It delivers a warm, bass-rich signature with airy treble, and while it excels in build quality and source compatibility, its physical size and complex tuning options may not suit everyone. Overall, it's a well-engineered enthusiast tool that offers solid technical performance for its price, though it doesn't dominate every sonic category.
- Pro:Excellent build quality with a comfortable, lightweight fit for most ears
- Pro:Multiple tuning switches allow for significant sound signature adjustments
- Pro:Strong bass extension and smooth, non-fatiguing treble
- Con:Large shell may cause fit issues for smaller ears
- Con:Tuning options can be overwhelming or confusing to dial in
- Con:Instrument separation is only average for the price
FiiO FD7
The FiiO FD7 is a wired, flagship-grade in-ear monitor built around a single 12mm pure beryllium dynamic driver, housed in a semi-open design. It offers a spacious, refined sound with clean tonality, strong dynamics, and impressive detail retrieval, supported by a modular cable and tuning accessories. While easy to drive from most sources, its premium price and semi-open nature mean it targets enthusiasts seeking a high-end, natural presentation rather than casual listeners.
- Pro:Excellent clarity and natural tonal balance
- Pro:Wide, well-defined soundstage with strong imaging
- Pro:Highly resolving with good dynamics and detail
- Con:Lacks noise isolation due to semi-open design
- Con:Premium price may not suit budget-focused buyers
- Con:Requires burn-in or source matching for best results
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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