DALI IO-12 vs Sennheiser HDB 630

The Sennheiser HDB 630 and the DALI IO-12 are both ANC-equipped, luxury audiophile headphones with slightly different strengths. The Sennheiser's frequency response is better aligned with our target, but some might prefer the DALI's warmer sound, especially over longer listening sessions where ear fatigue can kick in. Still, the Sennheiser boast unrivaled sound customization possibilities, thanks to extremely flexible EQ and sound shaping controls. They have a better noise isolation performance and a longer battery life, too, and even come with a dedicated Bluetooth dongle for high-resolution wireless playback. That said, the DALI are more comfortable and better built, and their built-in mic has a slightly better recording quality.