Although the DT 900 PRO X boasts a sturdy and high-quality build, the DT 1990 PRO MKII focuses on particularly high-quality material selection. The headband with a fontanelle recess ensures consistent high comfort even during long studio sessions.
Additionally, the DT 1990 PRO MKII comes with a hard case, along with a coiled cable, which is absent in the DT 900 PRO X. Two different ear pad sets offer sound flexibility, as they influence the sound characteristics differently.
In terms of sound quality, the DT 1990 PRO MKII impresses with a warmer and more pronounced bass range as well as a detailed sound profile. In contrast, the DT 900 PRO X emphasizes the mids more, while the DT 1990 PRO MKII is characterized by an accentuated treble profile.