Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | KZ - ZAR | Truthear - Nova |
|---|---|---|
| Sensitivity | 108 dB | 123 dB |
| Impedance | 26 Ω | 15 Ω |
| Driver count | 8 | 5 |
Between the ZAR and Nova, the ZAR comes out ahead in driver count, while the Nova wins on sensitivity / impedance. Overall, the ZAR scores 65.4 and the Nova scores 73.9 on our Mars Score.
Which should you buy?
The Nova is the clear pick on raw spec strength, leading by 8.5 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 ZAR if you care most about driver count. The biggest gaps in its favor are driver count. The single most decisive one: Driver count — 3.00 more. 8 vs 5.
Pick the Nova if you care most about sensitivity / impedance. Its strongest claims are sensitivity, impedance. The single most decisive one: Sensitivity — 13.89% more. 123 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: the Nova 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: KZ - ZAR or Truthear - Nova?
Truthear - Nova leads the current Mars Score by 8.5 points.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.
Choose Truthear - Nova if…
Truthear - Nova has the measurable edge on sensitivity db, 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 KZ - ZAR wins
- ▲Driver count — 3.00 more. 8 vs 5.
Why Truthear - Nova wins
- ▲Sensitivity — 13.89% more. 123 dB vs 108 dB.
- ▲Impedance — 11.00 Ω less. 15 vs 26.
Spec comparison
Drivers
| Spec | KZ - ZAR | Truthear - Nova |
|---|---|---|
| Driver count | 8lead | 5 |
| Driver types | 1DD + 7BA Hybrid | 1DD + 4BA Hybrid |
| Impedanceⓘ | 26 Ω | 15 Ωlead |
| Sensitivityⓘ | 108 dB | 123 dBlead |
Build
| Spec | KZ - ZAR | Truthear - Nova |
|---|---|---|
| Detachable cable | true | true |
| Connector | 0.78mm 2-pin | 0.78mm 2-pin |