Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Moondrop - Aria 2 | Shure - AONIC 3 |
|---|---|---|
| Sensitivity | 122 dB | 113 dB |
| Impedance | 32 Ω | 30 Ω |
Between the Aria 2 and AONIC 3, the Aria 2 comes out ahead in sensitivity, while the AONIC 3 wins on impedance. Overall, the Aria 2 scores 65.4 and the AONIC 3 scores 56.6 on our Mars Score.
Which should you buy?
The Aria 2 is the clear pick on raw spec strength, leading by 8.8 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 Aria 2 if you care most about sensitivity. The biggest gaps in its favor are sensitivity. The single most decisive one: Sensitivity — 7.96% more. 122 dB vs 113 dB.
Pick the AONIC 3 if you care most about impedance. Its strongest claims are impedance. The single most decisive one: Impedance — 2.00 Ω less. 30 vs 32.
Both ship with comparable driver count, detachable cable, so those specs do not separate the two — focus on the differences below.
Bottom line: the Aria 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Moondrop - Aria 2 or Shure - AONIC 3?
Moondrop - Aria 2 leads the current Mars Score by 8.8 points.The more useful decision is the trade-off behind that result: compare impedance, sensitivity against the way you will actually use the product.
Choose Moondrop - Aria 2 if…
Moondrop - Aria 2 has the measurable edge on sensitivity db.
Choose Shure - AONIC 3 if…
Shure - AONIC 3 has the measurable edge on impedance ohm.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Moondrop - Aria 2 wins
- ▲Sensitivity — 7.96% more. 122 dB vs 113 dB.
Why Shure - AONIC 3 wins
- ▲Impedance — 2.00 Ω less. 30 vs 32.
Spec comparison
Drivers
| Spec | Moondrop - Aria 2 | Shure - AONIC 3 |
|---|---|---|
| Driver count | 1 | 1 |
| Driver types | Dynamic | Single Balanced Armature |
| Impedanceⓘ | 32 Ω | 30 Ωlead |
| Sensitivityⓘ | 122 dBlead | 113 dB |
Build
| Spec | Moondrop - Aria 2 | Shure - AONIC 3 |
|---|---|---|
| Detachable cable | true | true |
| Connector | 0.78mm 2-pinlead | MMCX |