Wired IEMs
HiFiMAN RE400 In-Ear Monitor
78Great
$79
Full review dataHiFiMAN RE400 In-Ear Monitor vs Moondrop Aria: which should you buy?
On aggregated review scores the Moondrop Aria comes out ahead with an HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Moondrop Aria - Great overall at around $116.
Wired IEMs
Moondrop Aria
82Great
$116
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
HiFiMAN RE400 In-Ear Monitor
Sound8.0
Value8.5
Moondrop Aria
Sound8.5
Value8.0
Specifications
| Spec | HiFiMAN RE400 In-Ear Monitor | Moondrop Aria |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $79 | $116 |
| HearWiki score | 78 / 100 · Great | 82 / 100 · Great |
| Released | 2024 | 2021 |
| Audio | ||
| Driver | Titanium Diaphragm, Neodymium magnet | 10 mm LCP liquid crystal polymer dynamic driver |
| Driver size | 8.5 mm | 10 mm |
| Drivers per side | 1 | 1 |
| Frequency response | 15Hz-22kHz | 5Hz-36kHz |
| Impedance | 32 Ω | 32 Ω |
| Sensitivity | 102 dB/mW | 122 dB/mW |
| Wireless | ||
| Bluetooth | - | none |
| Multipoint pairing | - | No |
| Features | ||
| Active noise cancelling | - | No |
| Companion app | - | No |
| Custom EQ | - | No |
| Wear detection | - | No |
| Controls | buttons | none |
| Design | ||
| Weight | 12.9 g | 12 g |
| USB-C | - | No |
| Model code | RE400 Waterline | - |
What reviewers said
HiFiMAN RE400 In-Ear Monitor
The HiFiMAN RE400 is a compact, wired in-ear monitor that delivers a clean, neutral, and transparent sound signature, making it a strong budget choice for audiophiles. Its 8.5mm titanium-coated driver and 32-ohm impedance provide clarity, control, and a tight, tuneful presentation, though the stock ear tips can hinder performance compared to better alternatives. While cable noise may be noticeable when worn straight down, the overall value and sound quality remain impressive for the price.
- Pro:Neutral and transparent sound with good clarity
- Pro:Very small and comfortable fit for long listening
- Pro:Excellent value for audiophile-grade performance
- Con:Stock ear tips can degrade sound quality
- Con:Cable noise is noticeable when worn straight down
- Con:No active noise cancellation or wireless support
Moondrop Aria
The Moondrop Aria is a wired in-ear monitor that delivers a balanced, neutral-leaning sound with a touch of warmth and extra bass punch, making it a strong performer for its price. It's easy to drive from most devices thanks to its high sensitivity and 32-ohm impedance, and it offers solid build quality with a removable 2-pin cable. However, it lacks features like noise cancellation and controls, and its isolation is only average, so it's not ideal for noisy commutes.
- Pro:Excellent tonal balance with natural midrange timbre
- Pro:High sensitivity makes it easy to drive from phones
- Pro:Solid build quality with removable 2-pin cable
- Con:Average isolation, not suited for loud environments
- Con:Cable is prone to tangling and transmits some noise
- Con:No inline controls or microphone
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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