FlorianWelss6 years ago000Can I also combine the GSX 1200 with the Beyerdynamic DT990 Pro? Because the headphones have 250 ohms and this amplifier says 16-150 ohms? Show in original language (German)DonZubber6 years ago000I have the Beyerdynamic Dt770pro. It works without problems, but the maximum volume is reduced. I can live very well with this volume and it's also enough to listen to music a little louder. However, this is subjective.Show in original language (German)Comment