Anything and everything you've ever heard about the treble is true (DT990 600 Ohm) : r/headphones
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beyerdynamic DT 990 Premium Edition Open Headphones - 250 Ohm - Vintage King
Amazon.com: beyerdynamic Dt 880 250 Ohm Pro Semi-Open Studio Headphones Black (Limited Edition) : Musical Instruments
beyerdynamic DT 990 Black Special Edition
DT880 250ohm vs 600ohm, is there a real difference? : r/headphones
Amazon.com: beyerdynamic DT 990 Edition 600 Ohm Over-Ear-Stereo Headphones. Open design, wired, high-end for use with headphone amplifiers : Electronics
BeyerDynamic DT 880 Premium Semi Open Special Edition Chrome Headphone — Beach Camera