For mixing and mastering in the recording studio, open-back headphones are often used because of the better stereo image. In our portfolio we currently have following open-back headphones:
DT 880 PRO
DT 990 PRO
DT 900 PRO X
DT 1990 PRO
For (live-) mixing in noisy environments closed-back headphones are preferred such as DT 770 PRO/M and DT 1770 PRO and the DT 700 PRO X.