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Ofer24

48w

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.

Sennheiser462

Sennheiser

48w

Ofer

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.