Between the U12t and Aria 2, the U12t comes out ahead in impedance and driver count, while the Aria 2 wins on sensitivity. Overall, the U12t scores 79.3 and the Aria 2 scores 65.4 on our Mars Score.
Which should you buy?
The U12t is the clear pick on raw spec strength, leading by 13.9 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the U12t if you care most about impedance and driver count. The biggest gaps in its favor are impedance, driver count.
Pick the Aria 2 if you care most about sensitivity. Its strongest claims are sensitivity.
Both ship with comparable detachable cable, so those specs don't separate the two — focus on the differences below.
Bottom line: the U12t is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why 64 Audio - U12t wins
- ▲Impedance — 20.00 Ω less. 12 vs 32.
- ▲Driver count — 11.00 more. 12 vs 1.
Why Moondrop - Aria 2 wins
- ▲Sensitivity — 6.09% more. 122 dB vs 115 dB.
Spec comparison
Drivers
| Spec | 64 Audio - U12t | Moondrop - Aria 2 |
|---|---|---|
| Driver count | 12lead | 1 |
| Driver types | 12 Balanced Armature | Dynamic |
| Impedanceⓘ | 12 Ωlead | 32 Ω |
| Sensitivityⓘ | 115 dB | 122 dBlead |
Build
| Spec | 64 Audio - U12t | Moondrop - Aria 2 |
|---|---|---|
| Detachable cable | true | true |
| Connector | 2-pin | 0.78mm 2-pinlead |
Spec-level deep dives
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