Wired IEMs
Campfire Audio Polaris II
Not yet scored
$499
Full review dataCampfire Audio Polaris II vs FiiO FD7: which should you buy?
Specs, scores and condensed review verdicts for the Campfire Audio Polaris II vs FiiO FD7, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Score breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Campfire Audio Polaris II
No sub-scores yet - not enough rated reviews.
FiiO FD7
Sound8.5
Value7.0
Specifications
| Spec | Campfire Audio Polaris II | FiiO FD7 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $499 | $445 |
| HearWiki score | Not scored | 84 / 100 · Great |
| Released | 2020 | 2023 |
| Audio | ||
| Driver | 1BA + 9.2mm DD hybrid | 12mm pure beryllium diaphragm dynamic driver |
| Driver size | 9.2 mm | 12 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 5Hz-20kHz | 10Hz-40kHz |
| Impedance | 17 Ω | 50 Ω |
| Sensitivity | 105 dB/mW | 111 dB/mW |
| Features | ||
| Controls | - | buttons |
| Design | ||
| Weight | - | 11 g |
| Detachable cable | Yes | Yes |
| USB-C | No | - |
What reviewers said
Campfire Audio Polaris II
The Campfire Audio Polaris II is a hybrid in-ear monitor that pairs a single balanced armature with a 9.2mm dynamic driver, delivering a warm, bass-forward sound profile. Its cerulean blue aluminum housing is both durable and eye-catching, while the detachable MMCX cable and upgraded accessory kit add practical value. This model is best suited for listeners who prioritize deep, punchy low-end over neutrality.
- Pro:Rich, bass-heavy tuning ideal for bass lovers
- Pro:Sturdy and attractive machined aluminum shell
- Pro:Replaceable MMCX cable for easy upgrades or repairs
- Con:Bass emphasis may overshadow detail for critical listeners
- Con:No noise isolation features or wireless support
- Con:Relatively low impedance could be sensitive to source noise
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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