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Ofer
50
Dec 20, 2017
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Has anyone read Tyll's review of the HD 660s on Innerfidelity and can add anything? Asking because these ones are apparently similar, especially the same impedance.
Dec 20, 2017
Sennheiser
496
Sennheiser
Dec 21, 2017
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While we have plied our knowledge and advancements into the driver used in the HD 58X Jubilee, this is a different driver from the HD 660 S.
Dec 21, 2017
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