DUNU Mortise 50mm Dynamic Driver Open-Back Headphones
The standout feature of the DUNU Mortise is its earcups, precision-machined from North American Black Walnut. Beyond the striking visual grain, the walnut was selected for its natural damping properties, which help stabilize internal resonances and reduce high-frequency artifacts. This ensures that the output remains pure and clean, even during complex musical passages. As mentioned earlier, DUNU has equipped the Mortise with a large 50mm custom-developed dynamic driver unit. It features an ultra-thin carbon fiber diaphragm paired with an independent flexible surround suspension, ensuring deeply extended bass response with tight control and unmatched clarity across the frequency band. DUNU has also featured a high-flux magnetic circuit utilizing N52 Neodymium magnets, which helps the pair deliver lightning-fast transients and a textured bass response. The open-back architecture further enhances the user’s listening experience with a wide, holographic soundstage that avoids the “closed” feel of closed-back headphones.
DUNU has tuned the Mortise for a versatile sound signature. The pair offers a warm, smooth, and full-bodied sound presentation. It delivers clear, airy treble with a warm, punchy bass and a natural, lush midrange response. We are pretty sure it is going to complement different genres of music with great ease. Despite being a full-sized headphone, the Mortise is remarkably easy to drive. With an impedance of 38Ω and a sensitivity of 113dB/Vrms, it performs admirably even when paired with a high-quality portable source. DUNU bundles the Mortise with a high-purity single-crystal copper cable with DUNU’s patented Q-Lock Mini swappable termination plug system. It features dual 3.5mm plugs on the headphone side and swappable 3.5mm single-ended and 4.4mm balanced plugs for the source side. DUNU Mortise is an artistic product precisely crafted with special Black Walnut wood. Its custom-developed driver ensures a top-quality listening experience for audio lovers. DUNU Mortise is currently available on a pre-order basis, shipments are expected to begin soon.
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