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Sennheiser Hd660s vs Hd650: Which One Should You Buy? The Sennheiser HD660s and Sennheiser HD 650 are two pretty comparable headphones. Their appearance is nearly the same, and their sound signature is
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/cdn.vox-cdn.com/uploads/chorus_asset/file/9477111/senn_hd660s.jpg "Sennheiser launches HD 660 S successor to glorious HD 650 headphones - The Verge")
Sennheiser launches HD 660 S successor to glorious HD 650 headphones - The Verge
