{"product_id":"grado-prestige-gold4-cartridge","title":"Grado Prestige Gold4 Cartridge","description":"\u003ch1\u003eGrado Prestige Gold4 Cartridge\u003c\/h1\u003e\n\u003ch3\u003eA Prestige Series high-output moving iron cartridge with die-injection molded housing, aluminum cantilever, bonded elliptical diamond, 4 mV output, and standard or P-mount configuration\u003c\/h3\u003e\n\u003cp\u003eThe Grado Gold4 sits at the top of Grado’s Prestige Series, built for analog systems where resolution, tonal density, and control all matter. It uses Grado’s patented moving iron flux-bridger design to deliver speed, detail, and musical balance, while retaining the fixed-coil stability and long-term consistency that define Grado’s cartridge architecture.\u003c\/p\u003e\n\u003cp\u003eWith a 4 mV output, the Gold4 is designed for broad compatibility with moving-magnet phonostages and serious vinyl front ends. It is available in standard mount and P-mount versions, giving listeners a top Prestige Series Grado cartridge for a wide range of turntables and tonearms.\u003c\/p\u003e\n\u003ch4\u003eFlux-Bridger Moving Iron Design\u003c\/h4\u003e\n\u003cp\u003eAll Grado cartridges are based on Joseph Grado’s patented flux-bridger moving iron principle. In the Gold4, that design keeps the coil structure fixed while using an extremely low-mass moving system to generate signal from the groove. The result is a cartridge that combines speed, harmonic density, and low-level detail without the fragility or aging concerns often associated with traditional moving coil designs.\u003c\/p\u003e\n\u003ch4\u003eAluminum Cantilever and Bonded Elliptical Diamond\u003c\/h4\u003e\n\u003cp\u003eThe Gold4 uses a bonded elliptical diamond mounted to an aluminum cantilever. The elliptical profile provides effective groove contact and reliable tracking, allowing the cartridge to retrieve fine detail while maintaining a smooth, composed top end. The aluminum cantilever adds stability and control, helping the stylus assembly preserve timing, clarity, and consistency across the cartridge’s wide frequency range.\u003c\/p\u003e\n\u003ch4\u003eDie-Injection Molded Housing\u003c\/h4\u003e\n\u003cp\u003eThe Gold4 is built with a die-injection molded housing designed for consistent construction and reliable performance. The Prestige Series design keeps the cartridge practical to install, broadly compatible, and easy to maintain over long-term ownership.\u003c\/p\u003e\n\u003ch4\u003eCarefully Controlled Internal Structure\u003c\/h4\u003e\n\u003cp\u003eInside the cartridge, Grado uses ultra-high-purity 5N OCC copper for the internal signal path. Components are cryogenically treated during preparation and final assembly, and the internal structure is carefully damped to reduce unwanted resonance and vibration. The goal is a cartridge that tracks complex musical information with separation, stability, and dynamic ease.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eCantilever:\u003c\/b\u003e Aluminum\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStylus:\u003c\/b\u003e Bonded elliptical diamond\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOutput:\u003c\/b\u003e 4 mV @ 5 CMV, 45°\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFrequency Response:\u003c\/b\u003e 10 Hz–55 kHz\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eChannel Separation:\u003c\/b\u003e Avg. 25 dB, 10 Hz–30 kHz\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInput Load:\u003c\/b\u003e 10k–47k ohms\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInductance:\u003c\/b\u003e 50 mH\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDC Resistance:\u003c\/b\u003e 660 ohms\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTracking Force:\u003c\/b\u003e 1.6–1.9 g\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompliance:\u003c\/b\u003e 20 μm\/mN\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMounting:\u003c\/b\u003e P-mount or 1\/2\" screw mount\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCartridge Weight:\u003c\/b\u003e 6 g\u003c\/p\u003e\n","brand":"Grado","offers":[{"title":"Default Title","offer_id":53676890587320,"sku":"GOLD4","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/Gold-4_png.webp?v=1783451490","url":"https:\/\/upscaleaudio.com\/products\/grado-prestige-gold4-cartridge","provider":"Upscale Audio","version":"1.0","type":"link"}