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Sennheiser HD660S... Finally a successor for the HD650? | Page 442 | Headphone Reviews and Discussion - Head-Fi.org
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Sennheiser HD660S... Finally a successor for the HD650? | Page 81 | Headphone Reviews and Discussion - Head-Fi.org
![New headphones HD660s. Very disappointed at the beginning. I was gonna return them but after 2 days my brain burned in a little and the sound getting better. : r/headphones New headphones HD660s. Very disappointed at the beginning. I was gonna return them but after 2 days my brain burned in a little and the sound getting better. : r/headphones](https://external-preview.redd.it/o98JPJgPel8yDcgQTUbRkcSp97xH3AVbuoskBd1kuwU.jpg?auto=webp&s=6ee5a5db826b7160bfc085d36a1ecb99bc79c710)
New headphones HD660s. Very disappointed at the beginning. I was gonna return them but after 2 days my brain burned in a little and the sound getting better. : r/headphones
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