AudioChainsDB
Letshuoer

Cadenza4

headphones

$249

Used market: $195*

Manufacturer datasheet

Specifications

3 of 6 values have a recorded source
Connector
0.78 mm 2-pin·
Form Factor
In-Ear·
Impedance ohms
15
Transducer Type
Dynamic·
Detachable Cable
yes·
Sensitivity dB mW
102

Expert Audio Engineering Commentary

Tonal Profile

A dynamic woofer with balanced armatures above it, crossed passively. The 15 Ω nominal is the lowest of the Letshuoer line here, and the crossover means the real impedance curve is not flat — output impedance in the source will tilt the balance, not just lower it.

What the datasheet actually says

Quoted verbatim from the manufacturer’s own page, with the date we checked it. We state what is printed, not what anyone intended by it.

One figure, several models
«Sensitivity: 102dB»

The same bare «102dB» stands on three Letshuoer pages that describe different transducers and different loads: the S12 and S12 Pro planars at 16 Ω and this dynamic-plus-armature hybrid at 15 Ω. Only the S12 page names a unit («102dB/mW»). One figure repeated across topologies is not evidence that they sound equally loud from the same source; it is what a specification looks like when it is copied rather than measured per model.

checked 8/5/2026

* Estimated with the depreciation fallback (~78% retained value). · checked on 8/5/2026