S12 Pro
headphones
$135
Used market: $105*
Specifications
3 of 6 values have a recorded sourceExpert Audio Engineering Commentary
Tonal Profile
Same 14.8 mm planar as the S12 with a retuned acoustic chamber and a modular plug. The electrical load is unchanged, and so is the published sensitivity — only the unit went missing between the two pages.
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.
«Sensitivity：102db»
The unit is absent here and present on the S12 page of the same shop, where the same 102 figure reads «102dB/mW». Read as dB/V instead, this 16 Ω earphone would appear about 18 dB harder to drive than it is. The same «102dB» without a unit also appears on the Cadenza4 page, a hybrid with different drivers and a different impedance.
checked 8/5/2026* Estimated with the depreciation fallback (~78% retained value). · checked on 8/5/2026