Wired IEMs
Campfire Audio Astrolith - Dual Planar IEM
87Outstanding
$2199
Full review dataCampfire Audio Astrolith - Dual Planar IEM vs Final A4000: which should you buy?
On aggregated review scores the Campfire Audio Astrolith - Dual Planar IEM comes out ahead with an HearWiki score of 87. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Campfire Audio Astrolith - Dual Planar IEM - Outstanding overall at around $2199.
Wired IEMs
Final A4000
78Great
$1325
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Campfire Audio Astrolith - Dual Planar IEM
Sound9.0
Value6.5
Final A4000
Sound8.0
Value7.5
Specifications
| Spec | Campfire Audio Astrolith - Dual Planar IEM | Final A4000 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $2199 | $1325 |
| HearWiki score | 87 / 100 · Outstanding | 78 / 100 · Great |
| Released | 2024 | 2020 |
| Audio | ||
| Driver | Dual Planar | 6mm dynamic [f-Core DU] |
| Driver size | 14.2 mm | 6 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 5Hz-25kHz | - |
| Impedance | 8.2 Ω | 18 Ω |
| Sensitivity | 94 dB/mW | 100 dB/mW |
| Wireless | ||
| Bluetooth | - | none |
| Multipoint pairing | No | No |
| Battery | ||
| Wireless charging | - | No |
| Features | ||
| Active noise cancelling | No | - |
| ANC type | - | none |
| Transparency mode | - | No |
| Companion app | - | No |
| Custom EQ | - | No |
| Wear detection | - | No |
| Voice assistant | none | none |
| Design | ||
| Weight | - | 18 g |
| Detachable cable | Yes | - |
| USB-C | - | No |
| Calls | ||
| Call noise reduction | - | none |
What reviewers said
Campfire Audio Astrolith - Dual Planar IEM
The Campfire Audio Astrolith is a premium dual-planar IEM that delivers a fast, clear, and highly detailed sound with impressive staging and technical precision. Its nearly flat impedance and very low distortion make it a strong performer, though it benefits from quality sources and has a couple of minor ergonomic quirks. Overall, it's a notable step forward in the brand's planar lineup, offering a cohesive and resolving listen for those seeking top-tier wired performance.
- Pro:Exceptional speed and clarity across the frequency range
- Pro:Very low distortion and flat impedance for consistent performance
- Pro:Wide, well-defined soundstage with precise imaging
- Con:Slight mid-bass bloom can color certain tracks
- Con:Stock ear tips are not very good and may need replacement
- Con:Best results require a high-quality source or amplifier
Final A4000
The Final A4000 is a lightweight, wired in-ear monitor designed for effortless use with phones and other portable gear. It delivers an open, airy sound with crisp mids and sparkling treble, though its bright tuning may be too intense for some listeners. Overall, it's a technically capable earphone that prioritizes clarity and soundstage over a warm or relaxed signature.
- Pro:Easy to drive from any device
- Pro:Excellent soundstage and imaging
- Pro:Fast, clean transient response
- Con:Bright tuning can cause sibilance
- Con:Upper mids may sound harsh at times
- Con:Not ideal for listeners who prefer warmth
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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