NEW Sennheiser HD 660 S
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So this is why we've been getting such great deals on the HD 6XX (650). The new HD 660 S has been recently announced. There don't appear to be any (legitimate) reviews yet. While I'm curious to know how they stack against the 650's, I'm so content with my 650's that I doubt I'll care to drool over the 660's.
https://en-us.sennheiser.com/headphones-audiophile-high-end-hd-660-s#product-reviews
thumb_upseth_kong, James Davis, and 1 other
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BrunoArrais
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Nov 20, 2019
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I have this new model. It sounds just like the regular HD660S. Compared to the HD650, the 660S is more engaging (more treble energy) and has a wider soundstage.
Nov 20, 2019