Sennheiser HD 660S2 Audiophile Open-Back Headphones

Electronics

The Sennheiser HD 660S2 delivers rich, detailed sound with an open-back design that creates a wide soundstage. These are a serious upgrade for anyone into music production or critical listening. The transducers have been redesigned for deeper bass compared to the original 660S. Audiophile-grade headphones at price that's nice.

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