If you’re interested in headphones, you’re undoubtedly familiar with the debate: open-back or closed-back? Open designs are prized for their spacious soundstage, airiness, and transparency, while closed-back headphones typically offer a richer, weightier, and – quite literally – more enclosed presentation. With the DHS-1, PALMA has succeeded in developing a headphone that combines both approaches. Thanks to a brilliantly simple yet highly effective mechanism, the DHS-1 switches between open and closed operation with nothing more than a 14-degree twist – without compromising its audiophile sound quality.

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