At the 2006 Consumer Electronic Show (CES) in Las Vegas, Sennheiser debuted a trio of mid-level headphones. The new series is meant to filter down some of the design improvements from its high priced models to more moderate consumers. Two of these, the HD 415 and HD 435 are technically very similar, differing only cosmetically in design and accessories. Both feature 40mm drivers, an open air design, and clean contemporary styling.



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