{"product_id":"nagaoka-jeweltone-jt-80lb-mm-phono-cartridge","title":"Nagaoka - Jeweltone JT-80LB MM Phono Cartridge","description":"\u003cp\u003e\u003cstrong\u003eLapis Blue — a true moving-magnet cartridge from a company famous for not building them, and the first all-new Nagaoka cartridge family in roughly forty years.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEverything else Nagaoka makes is Moving Permalloy: magnets and coils fixed in the body, a light permalloy element riding the cantilever. Jeweltone is not that. Introduced for the company's 80th anniversary in 2020, the JT-80 series uses a conventional moving-magnet generator, designed from the ground up rather than adapted from an MP body. It is a genuine alternative to the MP line rather than another rung on the same ladder — the same diamonds, the same cantilever expertise, a different operating principle.\u003c\/p\u003e\n\u003cp\u003eThe JT-80LB is the more forgiving of the two. It pairs an aluminium cantilever with a bonded elliptical diamond and a high 5.0 mV output, which Nagaoka aimed at an energetic, wide-range presentation at an approachable price. That output figure is worth noting: at 5.0 mV this will drive any moving-magnet phono stage comfortably, including the built-in stages on integrated amplifiers.\u003c\/p\u003e\n\u003cp\u003eNagaoka publishes a dynamic compliance figure for the Jeweltone cartridges — 7.3 × 10⁻⁶ cm\/dyne — which it does not do for the MP series. That is a medium-compliance figure, suiting medium-mass tonearms. The cartridge tracks at a light 1.3 to 1.8 g and weighs 6.9 g.\u003c\/p\u003e\n\u003cp\u003eThe JT-80 series has been recognised with a Good Design Award.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTrue moving-magnet generator, designed from scratch — not an adapted MP body\u003c\/li\u003e\n\u003cli\u003e0.4 × 0.7 mil bonded elliptical diamond on an aluminium-alloy cantilever\u003c\/li\u003e\n\u003cli\u003eHigh 5.0 mV output — comfortable with any MM phono stage, including those built into integrated amps\u003c\/li\u003e\n\u003cli\u003e23 dB channel separation; 1.5 dB channel balance\u003c\/li\u003e\n\u003cli\u003eDynamic compliance published at 7.3 × 10⁻⁶ cm\/dyne\u003c\/li\u003e\n\u003cli\u003eLight 1.3 – 1.8 g tracking force\u003c\/li\u003e\n\u003cli\u003eUser-replaceable stylus assembly — genuine Nagaoka JTS-80LB\u003c\/li\u003e\n\u003cli\u003eIntroduced for Nagaoka's 80th anniversary; JT-80 series holds a Good Design Award\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Moving magnet (MM) stereo cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e 5.0 mV at 5 cm\/sec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20 Hz – 20,000 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Separation:\u003c\/strong\u003e 23 dB at 1 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Balance:\u003c\/strong\u003e 1.5 dB or less\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStylus:\u003c\/strong\u003e 0.4 × 0.7 mil bonded elliptical diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCantilever:\u003c\/strong\u003e Aluminium alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Compliance:\u003c\/strong\u003e 7.3 × 10⁻⁶ cm\/dyne\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTracking Force:\u003c\/strong\u003e 1.3 – 1.8 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad Resistance:\u003c\/strong\u003e 47 kΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad Capacitance:\u003c\/strong\u003e 100 pF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Weight:\u003c\/strong\u003e 6.9 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Lapis Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Stylus:\u003c\/strong\u003e Nagaoka JTS-80LB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Half inch (1\/2\") standard mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReleased:\u003c\/strong\u003e 20 November 2020\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Japan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nagaoka","offers":[{"title":"Default Title","offer_id":48321376092366,"sku":"4967736081559","price":279.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/5027\/0926\/files\/JT-80LB.jpg?v=1788380508","url":"https:\/\/www.theingroove.com\/es\/products\/nagaoka-jeweltone-jt-80lb-mm-phono-cartridge","provider":"The 'In' Groove","version":"1.0","type":"link"}