Between the IE 600 and AONIC 3, the IE 600 comes out ahead in impedance and sensitivity, while the AONIC 3 wins on several specs. Overall, the IE 600 scores 61.5 and the AONIC 3 scores 56.6 on our Mars Score.
Which should you buy?
The IE 600 edges ahead on the Mars Score (61.5 vs 56.6), but the 4.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the IE 600 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: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Sennheiser - IE 600 wins
- ▲Impedance — 12.00 Ω less. 18 vs 30.
- ▲Sensitivity — 4.42% more. 118 dB vs 113 dB.
Why Shure - AONIC 3 wins
- No decisive advantages.
Spec comparison
Drivers
| Spec | Sennheiser - IE 600 | Shure - AONIC 3 |
|---|---|---|
| Driver count | 1 | 1 |
| Driver types | Dynamic (TrueResponse) | Single Balanced Armature |
| Impedanceⓘ | 18 Ωlead | 30 Ω |
| Sensitivityⓘ | 118 dBlead | 113 dB |
Build
| Spec | Sennheiser - IE 600 | Shure - AONIC 3 |
|---|---|---|
| Detachable cable | true | true |
| Connector | MMCX | MMCX |
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.