Impedance is the so-called alternating-current resistance that headphones have under specific standard conditions. On devices with a low output impedance, headphones are the louder, the lower their impedance is. In principle, we recommend that you choose headphones with a low impedance for use on devices that are operated by battery/rechargeable battery (i.e. most portable devices such as smartphones, tablet computers but also notebooks). You can distinguish between high and low impedance. Usually the gradations 18 Ω, 32 Ω and 80 Ω are used in the low range. In the high range 250 Ω are common. If you want to get the most out of your system (and it has the power to do so), choose a model with 600 Ω like the DT 880 or 990 Edition.
|Impedance||Use case||Model examples|
|18 Ω||Smartphone, tablet||beyerdynamic Beat BYRD,
beyerdynamic Soul BYRD,
|32 Ω||Smartphone, tablet, MP3 player, laptop||Aventho wired, Amiron wireless, T5|
|80 Ω||Several studio uses, laptop, PC, Hi-Res-MP3 player||DT 770 PRO (80 ohms)|
|250 Ω||Headphone amplifiers, stereo systems, audio interfaces, studio area|
|600 Ω||High-end headphone amplifiers||DT 880 Edition, DT 990 Edition|