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Sennheiser HD 660 S Open, Dynamic Lightweight Circumaural Headphones with Low Impedence and Improved Transducer Design for Audiophiles, Black: Amazon.co.uk: Musical Instruments & DJ
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Sennheiser HD 660 S - A Review and Brief Comparison(Amiron Home) | Headphone Reviews and Discussion - Head-Fi.org
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Geekria Shield Case for Large-Sized Over-Ear Headphones, Replacement Protective Hard Shell Travel Carrying Bag with Cable Storage, Compatible with Sennheiser HD 599, HD 660S 2, AKG K167 (Black): Amazon.co.uk: Electronics & Photo
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