Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | KZ - ZAR | Moondrop - Aria 2 |
|---|---|---|
| Sensitivity | 108 dB | 122 dB |
| Driver count | 8 | 1 |
| Impedance | 26 Ω | 32 Ω |
Between the ZAR and Aria 2, the ZAR comes out ahead in driver count / impedance, while the Aria 2 wins on sensitivity. Overall, the ZAR scores 65.4 and the Aria 2 scores 65.4 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.
Pick the ZAR if you care most about driver count / impedance. The biggest gaps in its favor are driver count, impedance. The single most decisive one: Driver count — 7.00 more. 8 vs 1.
Pick the Aria 2 if you care most about sensitivity. Its strongest claims are sensitivity. The single most decisive one: Sensitivity — 12.96% more. 122 dB vs 108 dB.
Both ship with comparable detachable cable, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: KZ - ZAR or Moondrop - Aria 2?
The two products are effectively tied on the current Mars Score.The more useful decision is the trade-off behind that result: compare driver count, impedance, sensitivity against the way you will actually use the product.
Choose KZ - ZAR if…
KZ - ZAR has the measurable edge on driver count, impedance ohm.
Choose Moondrop - Aria 2 if…
Moondrop - Aria 2 has the measurable edge on sensitivity db.
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 KZ - ZAR wins
- ▲Driver count — 7.00 more. 8 vs 1.
- ▲Impedance — 6.00 Ω less. 26 vs 32.
Why Moondrop - Aria 2 wins
- ▲Sensitivity — 12.96% more. 122 dB vs 108 dB.
Spec comparison
Drivers
| Spec | KZ - ZAR | Moondrop - Aria 2 |
|---|---|---|
| Driver count | 8lead | 1 |
| Driver types | 1DD + 7BA Hybrid | Dynamic |
| Impedanceⓘ | 26 Ωlead | 32 Ω |
| Sensitivityⓘ | 108 dB | 122 dBlead |
Build
| Spec | KZ - ZAR | Moondrop - Aria 2 |
|---|---|---|
| Detachable cable | true | true |
| Connector | 0.78mm 2-pin | 0.78mm 2-pin |