Wired IEMs
Campfire Audio Moon Rover
84Great
$800
Full review dataCampfire Audio Moon Rover vs Westone MACH 40: which should you buy?
On aggregated review scores the Campfire Audio Moon Rover comes out ahead with an HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Campfire Audio Moon Rover - Great overall at around $800.
Wired IEMs
Westone MACH 40
62Average
$600
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Campfire Audio Moon Rover
Sound8.5
Value7.5
Westone MACH 40
Sound6.0
Value5.5
Specifications
| Spec | Campfire Audio Moon Rover | Westone MACH 40 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $800 | $600 |
| HearWiki score | 84 / 100 · Great | 62 / 100 · Average |
| Released | 2024 | 2022 |
| Audio | ||
| Driver | 12mm planar magnetic driver | BA |
| Driver size | 12 mm | - |
| Drivers per side | 1 | 4 |
| Frequency response | 5Hz–20kHz | 10Hz-20kHz |
| Impedance | 22.5 Ω | 30 Ω |
| Sensitivity | 94 dB/mW | 100 dB/mW |
| Design | ||
| Detachable cable | Yes | Yes |
| USB-C | - | No |
What reviewers said
Campfire Audio Moon Rover
The Campfire Audio Moon Rover is a limited-edition wired IEM featuring a single 12mm planar magnetic driver, delivering a balanced, detailed, and mature sound with a notably spacious soundstage. Its premium build quality, top-tier unboxing experience, and refined tuning make it a strong flagship-style option for serious listeners, though it trades some dynamic punch and midrange transparency for its neutral character. With a 22.5-ohm impedance and 94 dB sensitivity, it's best paired with a capable source to shine.
- Pro:Excellent technical performance and detail retrieval
- Pro:Spacious, well-defined soundstage
- Pro:Premium build and premium unboxing experience
- Con:Lacks the dynamic punch of some peers
- Con:Midrange clarity slightly less forward than top rivals
- Con:Limited production run may affect availability
Westone MACH 40
The Westone MACH 40 is a four-driver balanced-armature in-ear monitor with a warm, smooth, and laid-back tuning that prioritizes comfort and fatigue-free listening over aggressive detail or treble energy. Its 30-ohm impedance and 100 dB sensitivity mean it benefits from a dedicated amplifier to reach its full potential. While it offers a cohesive and natural sound for vocals and acoustics, its recessed mids and intimate stage may not satisfy those seeking high energy or spaciousness. Its solid build and detachable cable make it a reliable choice for long sessions, but it may feel underpowered compared to dynamic-driver rivals in terms of impact.
- Pro:Non-fatiguing, smooth treble that avoids harshness
- Pro:Warm, natural vocal and acoustic reproduction
- Pro:Comfortable fit and detachable cable for durability
- Con:Requires extra amplification due to low sensitivity
- Con:Recessed upper mids can make vocals sound muffled
- Con:Smaller soundstage and less dynamic impact than competitors
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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