Sennheiser HD 660S2: Emotive Bass and Powerful Range –

Sennheiser’s new HD 660S2 is an upgrade for audiophiles seeking exceptional detail with engaging low-frequency performance Sennheiser's updated HD 660S2 expands the capabilities of the 600-series family, the longstanding benchmark for high-performance audiophile headphones. Sennheiser responded to the hi-fi community's

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Emotive bass and powerful range

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Sennheiser HD 660S2 - Reviews Headphone Reviews and Discussion

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I don't mean to break up the anti-660s2 circle jerk, but I just got mine and they sound amazing out of the box. They have more bass than I was expecting and