Amazon.com: beyerdynamic DT 990 Premium Edition 250 Ohm Over-Ear-Stereo Headphones. Open design, wired, high-end, for the stereo system : Electronics
beyerdynamic DT 880 PRO / 250 ohm Studiokopfhörer, halboffen | MUSIC STORE professional
Amazon.com: beyerdynamic DT 990 Edition 600 Ohm Over-Ear-Stereo Headphones. Open design, wired, high-end for use with headphone amplifiers : Electronics