DT 770 Pro 250 Ω
headphones
$200
Used market: $155*
Specifications
2 of 8 values have a recorded sourceExpert Audio Engineering Commentary
Tonal Profile
Same headphone, same 96 dB/mW, but at 250 Ω that is only about 102 dB/V — six decibels quieter from the same voltage than the 80 Ω version, and about nine quieter than the 32 Ω one. Nothing about the driver changed; the number that changed is the one people ignore.
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.
«Nominal SPL 96 dB»
beyerdynamic prints this one figure on the shared DT 770 PRO sheet, and it stands for all three impedance versions — 32, 80 and 250 Ω — which have different voice coils and are, for every practical purpose, three different headphones. The sheet also omits the unit; the sibling PRO X pages spell it out as «100 dB SPL (1mW/500Hz)», which is why we read this one as dB/mW too. Both choices matter: read as dB/V instead, the three versions look identical, and the 8.9 dB spread that decides which one your interface can drive disappears.
checked 8/5/2026Setups using this gear
* Estimated with the depreciation fallback (~78% retained value). · checked on 8/5/2026