{"product_id":"grado-red-4-mm-phono-cartridge","title":"Grado Red 4 MM Phono Cartridge","description":"\u003cp\u003eThe \u003cstrong\u003eGrado\u003c\/strong\u003e Red 4 \u003cstrong\u003eMM phono cartridge\u003c\/strong\u003e is built with a high-output moving iron generator rated at 4.0 mV, engineered specifically for vinyl enthusiasts seeking musical coherence and wide phono-stage compatibility. As a core member of the Prestige Series, it incorporates a precision bonded elliptical diamond mounted to an aluminium cantilever to extract groove detail with low background noise. Hand-assembled in Brooklyn, the cartridge delivers balanced tonal linearity and wide stereo imaging across diverse record collections.\u003c\/p\u003e\u003ch3\u003eThe Hi-Fi Centre Team Take\u003c\/h3\u003e\u003cp\u003eIn day-to-day listening, the Grado Red 4 brings a natural acoustic presence and rich midrange body that makes extended evening listening sessions engaging and non-fatiguing. The low moving mass design allows vocal nuances and acoustic textures to resolve cleanly without harshness or grain. Groove tracing remains controlled across demanding domestic pressings, delivering articulate low-frequency definition alongside an open soundstage. It is a musically communicative cartridge that faithfully reproduces the character of your vinyl collection.\u003c\/p\u003e\u003ch3\u003eKey Acoustic \u0026amp; Design Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoving Iron Generator:\u003c\/strong\u003e Delivers low moving mass and a 4.0 mV output for rapid transient response through standard moving magnet phono inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonded Elliptical Diamond:\u003c\/strong\u003e Tracks micro-groove modulations accurately to preserve high-frequency extension while minimising record wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToleranced Cantilever Assembly:\u003c\/strong\u003e Hand-graded aluminium cantilever ensures uniform channel separation and coherent stereo imaging across the audio band.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Dealer Peace of Mind:\u003c\/strong\u003e Hi-Fi Centre is an Authorized Dealer, providing genuine manufacturer warranty coverage and dedicated specialist support.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Grado\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Red 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Prestige Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransducer Type:\u003c\/strong\u003e Moving Iron (MI \/ MM compatible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStylus Profile:\u003c\/strong\u003e Bonded Elliptical Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCantilever:\u003c\/strong\u003e Aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 10 Hz – 55,000 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e 4.0 mV @ 5 CMV (45°)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Separation:\u003c\/strong\u003e 25 dB average (10 Hz – 30,000 Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Tracking Force:\u003c\/strong\u003e 1.6 g – 1.9 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatic Compliance:\u003c\/strong\u003e 20 µm\/mN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Load:\u003c\/strong\u003e 10,000 Ω – 47,000 Ω (47 kΩ standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Inductance:\u003c\/strong\u003e 50 mH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Resistance:\u003c\/strong\u003e 660 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Weight:\u003c\/strong\u003e 6.0 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Configuration:\u003c\/strong\u003e Standard 1\/2-inch mount\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grado","offers":[{"title":"Default Title","offer_id":46005949595701,"sku":"Red 4","price":270.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2246\/9355\/files\/GradoRed4.jpg?v=1789583310","url":"https:\/\/hificentre.com\/products\/grado-red-4-mm-phono-cartridge","provider":"Hi-Fi Centre","version":"1.0","type":"link"}