beyerdynamic DT-990 Pro 250 Ohm – Thomann United States
Beyerdynamic DT990 Pro Open headphones
Beyerdynamic Dt-990 Pro Acoustically Open Headphones Limited Edition Bundle : Target
Amazon.com: beyerdynamic DT 990 Edition 600 Ohm Over-Ear-Stereo Headphones. Open design, wired, high-end for use with headphone amplifiers : Electronics
Beyerdynamic DT990 Pro Headphones - Black Limited Edition - Beyerdynamic from Inta Audio UK