{"product_id":"fosi-audio-i5","title":"Fosi Audio i5 Open-Back Planar Magnetic Headphones","description":"\u003cp\u003e- Nano diaphragm, studio-grade sound\u003cbr\u003e- 97mm driver, extreme detail resolution\u003cbr\u003e- Walnut build, premium craftsmanship\u003cbr\u003e- Open-back, expansive soundstage accuracy\u003c\/p\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e\n\u003ch3 class=\"heading leading-none title-sm\"\u003e\u003cspan class=\"word\" data-word=\"Democratizing\"\u003eDemocratizing\u003c\/span\u003e\u003cspan class=\"whitespace\"\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"word\" data-word=\"Planar\"\u003ePlanar\u003c\/span\u003e\u003cspan class=\"whitespace\"\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"word\" data-word=\"Sound\"\u003eSound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"rte leading-normal body subtext-sm\"\u003e\n\u003cp\u003eThe i5 was born from our mission to make planar magnetic headphones more accessible—without compromising on sound quality, comfort, or design. Over a year of in-house development and acoustic tuning led to a headphone that delivers exceptional clarity, low distortion, and lifelike detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rte leading-normal body subtext-sm\"\u003e\n\u003cul\u003e\n\u003cli\u003eTransducer Type: Planar Magnetic Transducer\u003c\/li\u003e\n\u003cli\u003eMaximum SPL: ≥ 120 dBSPL\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 10 - 50,000 Hz; THD: \u0026lt; 1% @100dBSPL\u003c\/li\u003e\n\u003cli\u003eSensitivity: 98 dB\/mW @1kHz; Nominal Impedance: 28 Ω\u003c\/li\u003e\n\u003cli\u003eRecommended Power: ≥ 500 mW\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003eDescription\u003cbr\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eImmersive Listening, Pure Original Sound : Experience studio-grade audio fidelity with nano-thin diaphragm and stealth magnets. Precision acoustics deliver high-resolution, low-distortion sound for live-performance realism\u003cbr\u003e\u003c\/li\u003e\n\u003cli\u003e97mm Ultra-Large Diaphragm : Industry-leading 97mm driver at 2μm thickness reveals microscopic details. Magnetron-sputtered silver alloy coating enhances clarity while ensuring long-term sonic consistency and durability\u003cbr\u003e\u003c\/li\u003e\n\u003cli\u003eErgonomic Design, Long-Lasting Comfort : Memory-steel headband with multi-axis pivoting earcups adapts instantly. Silicone sliders enable micro-adjustments. Breathable protein leather ear pads eliminate fatigue during extended sessions\u003cbr\u003e\u003c\/li\u003e\n\u003cli\u003eRefined Craftsmanship : Handcrafted walnut wood chambers paired with CNC-milled aluminum frame. Genuine sheepskin headband and signature S-design accents exude understated luxury and timeless sophistication\u003cbr\u003e\u003c\/li\u003e\n\u003cli\u003ePrecision Magnetic Control : 44 N50 neodymium magnets ensure razor-sharp transients. Acoustically transparent open-back grille minimizes resonance for expansive, holographic soundstage with studio-grade accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/fosiaudio.com\/cdn\/shop\/files\/002_7260154d-0dbc-4844-8007-b150d84fdc6c.jpg?v=1753426469\u0026amp;width=1000\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/fosiaudio.com\/cdn\/shop\/files\/003_bcb1a339-60cf-4c49-b014-ab5f7956c89f.jpg?v=1753426469\u0026amp;width=1000\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/fosiaudio.com\/cdn\/shop\/files\/004_f62bf96a-83c1-418b-b0ee-aa8296f94460.jpg?v=1753426469\u0026amp;width=600\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/fosiaudio.com\/cdn\/shop\/files\/005_15a87a13-5c28-42c0-89b4-8e202805b077.jpg?v=1753426469\u0026amp;width=600\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/fosiaudio.com\/cdn\/shop\/files\/006_3500b20d-62b1-4e02-b287-5170b50675a6.jpg?v=1753426469\u0026amp;width=600\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/fosiaudio.com\/cdn\/shop\/files\/008_0b3af7a1-a127-4451-8de3-cd0f86d2ac36.jpg?v=1753426469\u0026amp;width=600\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e\n\u003ch3\u003e1 Year Warranty\u003c\/h3\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":50815901368553,"sku":null,"price":4299.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5424\/8169\/files\/01.png?v=1775814324","url":"https:\/\/www.futex.hk\/en\/products\/fosi-audio-i5","provider":"Futex","version":"1.0","type":"link"}