Wired IEMs
FiiO FD7
84Great
$445
Full review dataFiiO FD7 vs TRN BA15: 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.
Wired IEMs
TRN BA15
68Good
$245
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
FiiO FD7
Sound8.5
Value7.0
TRN BA15
Sound7.0
Value6.0
Specifications
| Spec | FiiO FD7 | TRN BA15 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $445 | $245 |
| HearWiki score | 84 / 100 · Great | 68 / 100 · Good |
| Released | 2023 | 2022 |
| Audio | ||
| Driver | 12mm pure beryllium diaphragm dynamic driver | 15 balanced armature drivers per channel |
| Driver size | 12 mm | - |
| Drivers per side | 1 | 15 |
| Frequency response | 10Hz-40kHz | 10Hz-40kHz |
| Impedance | 50 Ω | 30 Ω |
| Sensitivity | 111 dB/mW | 100 dB/mW |
| Wireless | ||
| Bluetooth | - | None (wired only) |
| Multipoint pairing | - | No |
| Features | ||
| Active noise cancelling | - | No |
| Controls | buttons | - |
| Design | ||
| Weight | 11 g | 15 g |
| Detachable cable | Yes | - |
What reviewers said
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
TRN BA15
The TRN BA15 packs an impressive 15 balanced armature drivers per side into a compact wired IEM, delivering a technically capable and balanced sound signature with fast, punchy bass and slightly forward upper mids. Its tuning responds well to EQ adjustments, allowing listeners to shape the sound to their preferences, though it demands a quality source to fully unlock its potential. While its multi-driver architecture might seem like a gimmick, the execution is surprisingly cohesive and competitive for its price.
- Pro:Highly EQ-adjustable sound for personalized tuning
- Pro:Fast, strong bass response with good impact
- Pro:Detailed and technically capable presentation
- Con:Requires a capable source to perform optimally
- Con:Upper mids may be too forward for some listeners
- Con:Not wireless, limiting convenience
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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