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
![Sennheiser HD 660s2 versus Sennheiser HD 650, which is the better Sennheiser headphone for you? - YouTube Sennheiser HD 660s2 versus Sennheiser HD 650, which is the better Sennheiser headphone for you? - YouTube](https://i.ytimg.com/vi/eA6n6zehMsg/maxresdefault.jpg)
Sennheiser HD 660s2 versus Sennheiser HD 650, which is the better Sennheiser headphone for you? - YouTube
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