Wired IEMs
Campfire Audio Astrolith - Dual Planar IEM
87Outstanding
$2,200
Full review dataCampfire Audio Astrolith - Dual Planar IEM vs OPPO MH135-3: which should you buy?
Specs, scores and condensed review verdicts for the Campfire Audio Astrolith - Dual Planar IEM vs OPPO MH135-3, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Wired IEMs
OPPO MH135-3
Not yet scored
Price n/a
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
OPPO MH135-3
No sub-scores yet - not enough rated reviews.
Specifications
| Spec | Campfire Audio Astrolith - Dual Planar IEM | OPPO MH135-3 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $2,200 | - |
| HearWiki score | 87 / 100 · Outstanding | Not scored |
| Released | 2024 | 2024 |
| Audio | ||
| Driver | Dual Planar | dynamic |
| Driver size | 14.2 mm | 14.2 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 5Hz-25kHz | 20Hz-20kHz |
| Impedance | 8.2 Ω | 32 Ω |
| Sensitivity | 94 dB/mW | 106 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 |
| Controls | - | buttons |
| Voice assistant | none | none |
| Design | ||
| Weight | - | 12 g |
| Detachable cable | Yes | - |
| USB-C | - | Yes |
| Calls | ||
| Microphones | - | 1 |
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
OPPO MH135-3
The OPPO MH135-3 is a straightforward wired in-ear headset that connects via USB-C, making it a simple choice for calls and music on compatible devices. It features a single dynamic driver for sound and an inline button for control, but lacks advanced features like noise cancellation or app support.
- Pro:Wired USB-C connection for reliable audio
- Pro:Lightweight design at just 12 grams
- Pro:Built-in microphone for hands-free calls
- Con:No active noise cancellation
- Con:No companion app or custom EQ options
- Con:Limited to devices with USB-C port
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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