{"product_id":"koetsu-onyx-moving-coil-cartridge","title":"Koetsu Onyx Moving Coil Cartridge","description":"\u003ch1\u003eKoetsu Onyx Platinum Moving Coil Cartridge\u003c\/h1\u003e\n\u003ch3\u003eA stone-body moving coil cartridge with silver-plated copper coil wiring, platinum magnet, boron cantilever, and 0.3 mV output\u003c\/h3\u003e\n\u003cp\u003eThe Koetsu Onyx Platinum sits among Koetsu’s stone-body cartridges, with a body machined from a carefully selected block of onyx and polished to a very fine finish. The stone body gives the cartridge a substantial physical foundation while preserving the distinctive beauty and individuality of the natural material.\u003c\/p\u003e\n\u003cp\u003eInternally, the Onyx Platinum uses tightly matched silver-sheathed copper coils and cores, with a rare platinum magnet and boron cantilever. It is built to carry forward Koetsu’s reputation for color, texture, touch, and musical nuance.\u003c\/p\u003e\n\u003cp\u003eWith 0.3 mV output, 12.5 g net weight, and a recommended tracking force of 1.8 g–2 g, the Onyx Platinum is intended for serious analog systems with a tonearm, phonostage, and setup capable of realizing what a Koetsu stone-body cartridge can do.\u003c\/p\u003e\n\u003ch4\u003eAbout the Brand\u003c\/h4\u003e\n\u003cp\u003eKoetsu phono cartridges trace their lineage to Yosiaki Sugano, an artist, musician, calligrapher, swordsman, and business executive whose passions shaped one of analog audio’s most revered names. Inspired by the 17th-century Japanese artist Honami Koetsu, Sugano began experimenting with phono cartridges in the 1970s, combining a keen ear with an artist’s sensitivity to materials, proportion, and craft.\u003c\/p\u003e\n\u003cp\u003eKoetsu cartridges remain deeply personal, hand-built creations, produced in limited quantities by the Sugano family. Their construction draws on carefully chosen materials and specialized craft, from ultra-pure conductors and precisely controlled magnetic parts to hand-carved wood, lacquer, and stone bodies. The result is a cartridge line valued not only for technical refinement, but for a distinctive musical character that has made Koetsu a lasting reference in high-end analog playback.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eBody:\u003c\/b\u003e Onyx Stone\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eType:\u003c\/b\u003e Moving Coil\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCoil Wiring:\u003c\/b\u003e Silverplated Copper\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMagnet:\u003c\/b\u003e Platinum\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCantilever:\u003c\/b\u003e Boron\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOutput:\u003c\/b\u003e 0.3 mV\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Tracking Force:\u003c\/b\u003e 1.8 g–2 g\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Load:\u003c\/b\u003e 75 Ω–500 Ω\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e 12.5 g\u003c\/p\u003e","brand":"Koetsu","offers":[{"title":"Default Title","offer_id":53440975110328,"sku":"ONYX","price":15495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/image-asset_jpeg.webp?v=1781014249","url":"https:\/\/upscaleaudio.com\/products\/koetsu-onyx-moving-coil-cartridge","provider":"Upscale Audio","version":"1.0","type":"link"}