Sennheiser HD 660S2 review: a charming smoothness to their sound, but some flaws hold them back

There aren’t many headphones with as much heritage and history as the Sennheiser HD 600. The fact that you can still waltz over to the Sennheiser website and buy a pair, despite the model being over twenty years old, just goes to show that they’re still a respected icon and part of the furniture in the headphone market.

A number of new versions have been launched over the years, including the HD 650 and HD 660, not to mention the very latest version we’re testing here; the Sennheiser HD 660S2.


Over-Ear Headphones: Sennheiser HD 660S2

(Image credit: Sennheiser)

The Sennheiser HD 660S2 costs £499 ($599 / AU$849), so this puts them in the premium wired headphone category. Their most natural rival would be the Beyerdynamic Amiron (£545), although prices are quite spread out at this level and you can pick up excellent options if you spend a little more, if not a little less. It really depends on your budget.

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