{"title":"Grado Prestige Cartridges","description":"\u003cp\u003eThe Prestige Series is where most listeners start with Grado cartridges, and where many stay. Built around elliptical diamond stylus profiles, aluminum cantilevers, and OCC copper coil composition, these cartridges deliver stable tracking, balanced tone, and the kind of musical integrity that makes vinyl worth the effort. Grado's moving iron design runs through the entire Prestige line, maintaining the same core approach used in their reference models.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/grado-green4-phono-cartridge\"\u003eGreen4\u003c\/a\u003e handles everyday listening with consistent output and easy setup. The \u003ca href=\"\/products\/grado-red4-phono-cartridge\"\u003eRed4\u003c\/a\u003e refines the coil winding and stylus profile for more detail and separation. The \u003ca href=\"\/products\/grado-gold4-phono-cartridge\"\u003eGold4\u003c\/a\u003e adds further precision in both areas, pulling more information from the groove without adding harshness. All three accept user-replaceable styli, so maintenance is straightforward and the cartridge body lasts for years.\u003c\/p\u003e","products":[{"product_id":"grado-gold4-phono-cartridge","title":"Grado Gold4 Phono Cartridge","description":"\u003cp\u003eThe Grado Gold4 is the top model in Grado's Prestige Series, pairing an elliptical diamond stylus with the most refined flux-bridger generator and coil winding in the Prestige lineup. It represents the best Grado offers in a standard-mount cartridge with a user-replaceable stylus, and serves as the natural stepping stone for listeners who want to hear Grado's moving iron technology before committing to the wood-bodied \u003ca href=\"\/collections\/grado-timbre-cartridges\"\u003eTimbre Series\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the Grado Gold4\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, with the tightest component grading in the Prestige Series.\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 without sending the cartridge in.\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\/gold4-inline-01.jpg\" alt=\"Grado Gold4 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 still assembled, tested, and voiced in the same Sunset Park facility where Joseph first began his work over seven decades ago. Nothing about the operation has been outsourced, automated, or moved offshore.\u003c\/p\u003e\n\n\u003ch5\u003ePrestige Series Hierarchy\u003c\/h5\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/gold4-inline-02.jpg\" alt=\"Grado Gold4 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, stylus type, and flux-bridger generator. The difference between the \u003ca href=\"\/products\/grado-green4-phono-cartridge\"\u003eGreen4\u003c\/a\u003e ($140), \u003ca href=\"\/products\/grado-red4-phono-cartridge\"\u003eRed4\u003c\/a\u003e ($190), and Gold4 ($260) is in component selection and grading tolerances during hand-assembly in Brooklyn. The Gold4 receives the tightest tolerancing in the series, resulting in wider channel separation, lower distortion, and more refined frequency extension. All three use user-replaceable styli, so upgrading from Green4 to Gold4 later is as simple as swapping the stylus assembly. No need to send the cartridge in, no need to change loading on your phono stage, no need to alter tracking force.\u003c\/p\u003e\n\n\u003ch5\u003eWhy Flux-Bridger Matters\u003c\/h5\u003e\n\u003cp\u003eGrado's flux-bridger generator pairs the low moving mass associated with moving coil cartridges with the 4.0mV output and standard MM loading of a moving magnet. The Gold4 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. For listeners running a budget or mid-range phono stage who want moving-coil-class transient speed without the loading complications, this is the most refined option Grado makes in a standard-mount, user-stylus-replaceable cartridge.\u003c\/p\u003e\n\n\u003ch5\u003eUpgrading from Prestige to Timbre\u003c\/h5\u003e\n\u003cp\u003eThe Gold4 is the natural last stop before the \u003ca href=\"\/collections\/grado-timbre-cartridges\"\u003eTimbre Series\u003c\/a\u003e. Moving to the \u003ca href=\"\/products\/grado-opus4-phono-cartridge\"\u003eOpus4\u003c\/a\u003e ($300) gets you a wood housing (North American Maple), OCC copper coils (vs. OFC), a three-piece OTL cantilever, and four output configurations to match any phono stage. The Timbre styli are not user-replaceable, but Grado offers a trade-in program for their wood-bodied cartridges so you're never stuck when the diamond wears.\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 Gold4 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":42681461669984,"sku":"GRADGOLD4","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/grado-gold4-amazon-front.jpg?v=1775506997"},{"product_id":"grado-red4-phono-cartridge","title":"Grado Red4 Phono Cartridge","description":"\u003cp\u003eThe Grado Red4 is the mid-range model in Grado's Prestige Series, offering tighter component grading than the entry-level Green4. Like all Grado cartridges, the Red4 uses the company's patented flux-bridger moving iron generator, which provides the transient speed of moving coil designs with standard moving magnet output levels. It's a plug-and-play upgrade for any turntable with a standard 1\/2\" mount headshell.\u003c\/p\u003e\n\n\u003ch5\u003eKey Features of the Grado Red4\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, with mid-tier component grading.\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\/red4-inline-01.jpg\" alt=\"Grado Red4 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 still assembled, tested, and voiced in the same Sunset Park facility where Joseph first began his work over seven decades ago. 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 pairs the low moving mass associated with moving coil cartridges with the 4.0mV output and standard MM loading of a moving magnet. That means the Red4 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 the rest of the system can stay as it is.\u003c\/p\u003e\n\n\u003ch5\u003ePrestige Series Grading\u003c\/h5\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/red4-inline-02.jpg\" alt=\"Grado Red4 cartridge detail\" style=\"width:100%;max-width:1000px;height:auto;border-radius:12px;margin:16px 0;\"\u003e\n\u003cp\u003eThe Red4 shares its body, stylus type, generator design, and coil material with the \u003ca href=\"\/products\/grado-green4-phono-cartridge\"\u003eGreen4\u003c\/a\u003e and \u003ca href=\"\/products\/grado-gold4-phono-cartridge\"\u003eGold4\u003c\/a\u003e. The difference is in how tightly components are matched during hand-assembly in Brooklyn. The Red4's mid-tier grading produces measurable improvements in channel separation and distortion over the Green4, while the Gold4 pushes tolerancing further still. All three accept the same replacement styli, so you can upgrade from Red4 to Gold4-level performance with just a stylus swap, no cartridge return required. When you've outgrown the Prestige Series, the wood-bodied \u003ca href=\"\/collections\/grado-timbre-cartridges\"\u003eTimbre Series\u003c\/a\u003e adds a wood housing and OCC copper coils with a three-piece OTL aluminum cantilever. The Gold4 is the natural last stop in Prestige before that jump.\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 Red4 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":42681461702752,"sku":"GRADRED4","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/grado-red4-amazon-front.jpg?v=1775506996"},{"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"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/collections\/grado-gold4-amazon-front.jpg?v=1775509016","url":"https:\/\/listenroom.com\/collections\/grado-prestige-cartridges.oembed","provider":"The Listening Room","version":"1.0","type":"link"}