hd 660sm
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Dive deeper into legendary sound. Let’s meet the HD 660S2
Hello Head-Fi! It sure is hard to keep a secret! We’re here to officially debut the HD 660S2, the latest in our 600 series of audiophile headphones. This dynamic, open-back set of cans brings a new flavor to this award-winning and best-selling family thanks to the feedback from you, the hi-fi...- Sennheiser
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- 300 ohm dynamic hd 660 hd 660s hd 660s2 hd 660sm hd660s hd660s2 open back sennheiser
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