Wired IEMs
Letshuoer S12 Ultra
83Outstanding
$170
Full review dataLetshuoer S12 Ultra vs MOONDROP ARIA 2: which should you buy?
On aggregated review scores the Letshuoer S12 Ultra comes out ahead with a HearWiki score of 83. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Letshuoer S12 Ultra - Outstanding overall at around $169.
Wired IEMs
MOONDROP ARIA 2
75Great
$90
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Letshuoer S12 Ultra leads on 3 of 4 measures.
- Letshuoer S12 Ultra
- MOONDROP ARIA 2
HearWiki score
83
75
Sound
8.6
8.0
Value
8.9
7.2
Price (USD)
$170
$90
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Same generation
The Letshuoer S12 Ultra is 2 years newer, but it is the same generation of hardware: nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.
- S12 Ultra20252 yr newer
- ARIA 22023
Specifications
S12 UltraARIA 2
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $170
- $90
- HearWiki score
- 83
- 75
- Released
- 2025
- 2023
- Availability
- Sold new
- Discontinued
- Driver
- 1 planar magnetic
- dynamic
- Driver type
- planar
- dynamic
- Driver configuration
- 1 planar magnetic
- -
- Driver size
- 14.8 mm
- -
- Drivers per side
- 1
- -
- Impedance
- 16 Ω
- 33 Ω
- Active noise cancelling
- -
- No
- Weight
- -
- 12 g
- Connector
- -
- 2-pin 0.78 mm
What reviewers said
Letshuoer S12 Ultra
The Letshuoer S12 Ultra is a wired in-ear monitor built around a single 14.8mm planar magnetic driver housed in a lightweight aluminum shell. It delivers the signature planar sound of the S12 line—fast, detailed, and punchy—in a refreshed design aimed at hi-fi enthusiasts. With a low 16-ohm impedance, it pairs easily with most sources, though it lacks any active noise cancellation.
- Pro:Fast, detailed planar sound with strong dynamics
- Pro:Lightweight and sturdy aluminum-alloy build
- Pro:Easy to drive thanks to low impedance
- Con:No noise cancellation or isolation features
- Con:Planar timbre may not suit all listeners
- Con:Cable and accessories are basic for the price
MOONDROP ARIA 2
The Moondrop Aria 2 is a wired dynamic-driver IEM that refines the original's tuning with clearer mids and a more balanced tonal character, though it trims the low-end punch. Its build quality and cable are solid for the price, and it offers good imaging and soundstage, but the large nozzle and heavier shells may affect comfort for some listeners. Overall, it's a well-rounded performer for its class, though not a major technical leap forward.
- Pro:Excellent clarity and detail for the price
- Pro:Solid build quality and good stock cable
- Pro:Coherent sound with good dynamics and imaging
- Con:Bass is leaner than expected, not for bassheads
- Con:Upper mids can sound shouty on some tracks
- Con:Large nozzle may be uncomfortable for some
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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