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Amazon.com: beyerdynamic DT 990 Pro 250 Ohm Open-Back Studio Mixing Headphones Bundle -Includes- Soft Case, Headphone Splitter, and More : Electronics
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Amazon.com: beyerdynamic DT 990 PRO Over-Ear Studio Monitor Headphones - Open-Back Stereo Construction, Wired (80 Ohm, Grey) : Musical Instruments
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Amazon.com: beyerdynamic DT 990 PRO 250 ohm - LIMITED EDITION (Black, Straight Cable) : Musical Instruments
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Amazon.com: beyerdynamic DT 990 PRO Studio Headphones (Ninja Black, Limited Edition) Bundle with Hard Shell Headphone Case (2 Items) : Musical Instruments
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Archimago's Musings: RETRO: Beyerdynamic DT 990, 600Ω, classic open-back circumaural headphones (circa 1991).
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