{"product_id":"grado-green4-phono-cartridge","title":"Grado Green4 Phono Cartridge","description":"\u003cp\u003eThe Grado Green4 is the entry point to Grado's cartridge lineup, delivering the company's patented flux-bridger moving iron technology in a standard-mount design. It outputs 4.0mV into any standard moving magnet phono input, tracks at 1.5 grams, and weighs 5.5 grams, making it compatible with virtually any medium-compliance tonearm. If you're buying your first quality cartridge or upgrading from whatever came bundled with your turntable, the Green4 is where Grado starts.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the Grado Green4\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElliptical Diamond Stylus:\u003c\/strong\u003e User-replaceable, dual-radius contact profile for balanced tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlux-Bridger Moving Iron Generator:\u003c\/strong\u003e Grado's patented design, the same core technology used in their $9,995 flagship.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOFC Copper Coils:\u003c\/strong\u003e Oxygen-free copper windings, hand-wound at Grado's Brooklyn facility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.0mV Output:\u003c\/strong\u003e Standard moving magnet level, compatible with any MM phono input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Replaceable Stylus:\u003c\/strong\u003e Snap-in stylus assembly for easy replacement or upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 1\/2\" Mount:\u003c\/strong\u003e Fits any standard headshell or tonearm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand-Built in Brooklyn, NY:\u003c\/strong\u003e Assembled and voiced at Grado's Sunset Park facility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eAbout Grado Labs\u003c\/h5\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/green4-inline-01.jpg\" alt=\"Grado Green4 phono cartridge\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003cp\u003eGrado Labs has been building phono cartridges and headphones by hand in Brooklyn, New York since 1953. The company was founded by Joseph Grado, and four generations of the Grado family have since refined the company's patented flux-bridger moving iron generator system, which delivers the speed and detail retrieval associated with moving coil designs while keeping the higher output and simpler loading requirements of moving magnet cartridges. Every Grado cartridge is hand-assembled in the same Sunset Park facility where Joseph first began his work over seven decades ago, then tested and voiced before it ships. Nothing about the operation has been outsourced, automated, or moved offshore.\u003c\/p\u003e\n\n\u003ch5\u003eWhy Flux-Bridger Matters\u003c\/h5\u003e\n\u003cp\u003eGrado's flux-bridger generator is the technology that separates the Green4 (and every other Grado cartridge) from conventional moving magnet and moving coil designs. It pairs the low moving mass associated with moving coil cartridges with the 4.0mV output and standard MM loading of a moving magnet, so the Green4 works straight into the phono input on any integrated amplifier, receiver, or basic phono preamp. No step-up transformer, no specialized loading, no MC-capable phono stage required. Plug it in, set tracking force to 1.5 grams, and play.\u003c\/p\u003e\n\n\u003ch5\u003eThe Upgrade Path\u003c\/h5\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/green4-inline-02.jpg\" alt=\"Grado Green4 cartridge detail\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003cp\u003eAll three Prestige cartridges share the same body and the same flux-bridger generator with OFC copper coils. The Green4 sits at the entry of the series. The \u003ca href=\"\/products\/grado-red4-phono-cartridge\"\u003eRed4\u003c\/a\u003e and \u003ca href=\"\/products\/grado-gold4-phono-cartridge\"\u003eGold4\u003c\/a\u003e step up with tighter grading tolerances during hand-assembly. Tighter tolerances translate to wider channel separation and lower distortion. Frequency response also gets more linear at the top of the line. Because all three accept the same replacement stylus assemblies, you can start with the Green4 and move up to Red4 or Gold4 performance later by swapping styli, without sending the cartridge in. The natural step beyond the Prestige Series is the \u003ca href=\"\/collections\/grado-timbre-cartridges\"\u003eTimbre Series\u003c\/a\u003e, which adds a wood housing and OCC copper coils.\u003c\/p\u003e\n\n\u003ch5\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp\u003eWe're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on exceptional service and relentless passion for hifi. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don't just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\n\u003ch5\u003eGrado Green4 Specifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eCartridge Type\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003eMoving Iron (Flux-Bridger)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eStylus\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003eElliptical Diamond (User-Replaceable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eCantilever\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eOutput Voltage\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003e4.0mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eCoil Wire\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003eOFC Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eBody Material\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003ePolymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eTracking Force\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003e1.5 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eCartridge Weight\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003e5.5 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eCompliance\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003e20 µm\/mN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eMount\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003eStandard ½\" Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:#f3f3f3;padding:12px;width:34%;\"\u003e\u003cb\u003eOrigin\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:12px;width:66%;\"\u003eHand-built in Brooklyn, NY, USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Grado","offers":[{"title":"Default Title","offer_id":42681461735520,"sku":"GRADGREEN4","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/grado-green4-amazon-front.jpg?v=1775506996","url":"https:\/\/listenroom.com\/products\/grado-green4-phono-cartridge","provider":"The Listening Room","version":"1.0","type":"link"}