Between the IE 200 and AONIC 3, the IE 200 comes out ahead in impedance and sensitivity, while the AONIC 3 wins on several specs. Overall, the IE 200 scores 62.5 and the AONIC 3 scores 56.6 on our Mars Score.
Which should you buy?
The IE 200 edges ahead on the Mars Score (62.5 vs 56.6), but the 5.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the IE 200 if you care most about impedance and sensitivity. The biggest gaps in its favor are impedance, sensitivity.
The AONIC 3 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable driver count, detachable cable, so those specs don't separate the two — focus on the differences below.
Bottom line: the IE 200 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Sennheiser - IE 200 wins
- ▲Impedance — 12.00 Ω less. 18 vs 30.
- ▲Sensitivity — 5.31% more. 119 dB vs 113 dB.
Why Shure - AONIC 3 wins
- No decisive advantages.
Spec comparison
Drivers
| Spec | Sennheiser - IE 200 | Shure - AONIC 3 |
|---|---|---|
| Driver count | 1 | 1 |
| Driver types | Dynamic | Single Balanced Armature |
| Impedanceⓘ | 18 Ωlead | 30 Ω |
| Sensitivityⓘ | 119 dBlead | 113 dB |
Build
| Spec | Sennheiser - IE 200 | Shure - AONIC 3 |
|---|---|---|
| Detachable cable | true | true |
| Connector | MMCX | MMCX |
Frequently asked
Spec-level deep dives
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