Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Letshuoer - Cadenza 12 | Sennheiser - IE 600 |
|---|---|---|
| Sensitivity | 105 dB | 118 dB |
| Driver count | 12 | 1 |
| Impedance | 16 Ω | 18 Ω |
Between the Cadenza 12 and IE 600, the Cadenza 12 comes out ahead in driver count / impedance, while the IE 600 wins on sensitivity. Overall, the Cadenza 12 scores 70.1 and the IE 600 scores 61.5 on our Mars Score.
Which should you buy?
The Cadenza 12 is the clear pick on raw spec strength, leading by 8.6 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 Cadenza 12 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 — 11.00 more. 12 vs 1.
Pick the IE 600 if you care most about sensitivity. Its strongest claims are sensitivity. The single most decisive one: Sensitivity — 12.38% more. 118 dB vs 105 dB.
Both ship with comparable detachable cable, so those specs do not separate the two — focus on the differences below.
Bottom line: the Cadenza 12 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: Letshuoer - Cadenza 12 or Sennheiser - IE 600?
Letshuoer - Cadenza 12 leads the current Mars Score by 8.6 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 Letshuoer - Cadenza 12 if…
Letshuoer - Cadenza 12 has the measurable edge on driver count, impedance ohm.
Choose Sennheiser - IE 600 if…
Sennheiser - IE 600 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 Letshuoer - Cadenza 12 wins
- ▲Driver count — 11.00 more. 12 vs 1.
- ▲Impedance — 2.00 Ω less. 16 vs 18.
Why Sennheiser - IE 600 wins
- ▲Sensitivity — 12.38% more. 118 dB vs 105 dB.
Spec comparison
Drivers
| Spec | Letshuoer - Cadenza 12 | Sennheiser - IE 600 |
|---|---|---|
| Driver count | 12lead | 1 |
| Driver types | 1DD + 8BA + 2EST + 1BC Tetrabrid | Dynamic (TrueResponse) |
| Impedanceⓘ | 16 Ωlead | 18 Ω |
| Sensitivityⓘ | 105 dB | 118 dBlead |
Build
| Spec | Letshuoer - Cadenza 12 | Sennheiser - IE 600 |
|---|---|---|
| Detachable cable | true | true |
| Connector | 0.78mm 2-pinlead | MMCX |