{"product_id":"dunu-mortise","title":"DUNU Mortise Open-Back Headphones — 50mm Carbon Fiber Driver, Walnut Cups","description":"\u003cp class=\"tp-summary\"\u003eThe DUNU Mortise is an open-back, over-ear headphone with a 50mm dynamic driver that pairs an ultra-thin carbon fiber diaphragm with an N52 magnet, housed in North American black walnut cups and rated at 38Ω and 98dB\/mW. It suits home listeners who want wood-cup open-back sound with swappable 3.5mm single-ended and 4.4mm balanced plugs.\u003c\/p\u003e\n\u003ch2\u003eWho the DUNU Mortise is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome listening:\u003c\/strong\u003e DUNU describes the tuning as warm and full-bodied, with an open-back design meant for a naturally expansive soundstage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced and single-ended sources:\u003c\/strong\u003e The Q-Lock Mini plug system includes 3.5mm single-ended and 4.4mm balanced plugs, and a 3.5mm to 6.35mm adapter is included for desktop amps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWood-cup fans:\u003c\/strong\u003e The cups are North American black walnut, which DUNU says adds internal damping to help control resonance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong sessions:\u003c\/strong\u003e DUNU lists an ergonomic adaptive fit, and the headphones weigh about 325g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkip it if:\u003c\/strong\u003e you need isolation; open-back cups leak sound in both directions, so it is not for commutes or shared offices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDUNU Mortise key specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Open-back, over-ear; North American black walnut cups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver:\u003c\/strong\u003e 50mm dynamic, ultra-thin carbon fiber diaphragm, flexible surround, N52 magnet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance:\u003c\/strong\u003e 38Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e 98dB\/mW (113dB\/Vrms) at 1kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency response:\u003c\/strong\u003e 5Hz–40kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e \u0026lt;0.2% at 1kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable:\u003c\/strong\u003e 4-core high-purity single-crystal copper, 150cm ±10cm, dual 3.5mm at the cups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlugs:\u003c\/strong\u003e Q-Lock Mini system; 3.5mm single-ended and 4.4mm balanced included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 325g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Carrying case, 3.5mm to 6.35mm adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"tp-trust\"\u003eGenuine DUNU stock. Free shipping on every order, 45-day returns.\u003c\/p\u003e","brand":"DUNU","offers":[{"title":"Default Title","offer_id":46347822989447,"sku":"DUNU MORTISE","price":400.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/9839821543.jpg?v=1793199822","url":"https:\/\/tonepier.com\/products\/dunu-mortise","provider":"TonePier","version":"1.0","type":"link"}