{"product_id":"grado-sonata-4-phono-cartridge","title":"Grado Sonata 4 Phono Cartridge","description":"\u003cp\u003eThe Grado Sonata 4 Phono Cartridge utilises a four-piece OTL aluminium cantilever and a nude elliptical diamond to deliver wide-bandwidth analogue playback for discerning vinyl listeners. Distinguished among premium phono cartridges, this moving iron transducer is housed in a resonance-damping Mediterranean olive wood body engineered to control mechanical vibration and preserve tonal fidelity. Hand-assembled in Brooklyn as an essential component of the Timbre Series, it incorporates ultra-high-purity continuous-cast copper coils to ensure linear phase response and consistent channel balance across demanding record grooves.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eThe Hi-Fi Centre Team Take\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eLiving with the Grado Sonata 4 brings an organic presence and textural realism to daily listening sessions that digital formats rarely match. Its Mediterranean olive wood body gives acoustic instruments and vocals an effortless sense of decay, proving especially rewarding during late-night vinyl playback where low-level micro-dynamics matter most. The flux-bridger moving iron architecture delivers an agile, low-mass transient response without inducing the high-frequency fatigue common in many moving coil alternatives. It turns album playback into a deeply engaging ritual, tracking complex dynamic passages with steady authority and fatigue-free musical flow.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eKey Acoustic \u0026amp; Design Features\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMediterranean Olive Wood:\u003c\/strong\u003e Precision-machined hardwood housing dampens internal mechanical resonances to preserve natural acoustic timbre and background silence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised OTL Cantilever:\u003c\/strong\u003e Four-piece aluminium assembly with a nude elliptical diamond stylus achieves reduced tip mass for accurate groove tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Purity OCC Coils:\u003c\/strong\u003e Ultra-pure continuous-cast copper windings maintain accurate phase integrity and clean low-level signal transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Dealer Advantage:\u003c\/strong\u003e Guaranteed 100% authentic Grado engineering with complete manufacturer warranty protection and dedicated support from Hi-Fi Centre.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e Grado Sonata 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Timbre Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransducer Type:\u003c\/strong\u003e Moving Iron (MI) \/ Flux-Bridger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Mediterranean Olive Wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCantilever:\u003c\/strong\u003e Four-Piece OTL Aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStylus Profile:\u003c\/strong\u003e Nude Elliptical Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Options:\u003c\/strong\u003e High Output (4.0 mV at 5 cm\/s) \/ Low Output (1.0 mV at 5 cm\/s)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 10 Hz – 60,000 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Separation:\u003c\/strong\u003e 30 dB (average at 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\u003eStylus Compliance:\u003c\/strong\u003e 20 µm\/mN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Resistance:\u003c\/strong\u003e High Output: 660 Ω | Low Output: 70 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Inductance:\u003c\/strong\u003e High Output: 55 mH | Low Output: 6 mH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Load:\u003c\/strong\u003e 10,000 Ω – 47,000 Ω (non-sensitive to capacitive load)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Weight:\u003c\/strong\u003e 9.4 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e United States (Brooklyn, NY)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grado","offers":[{"title":"High Output","offer_id":46005957394485,"sku":"Sonata 4-HO","price":850.0,"currency_code":"CAD","in_stock":true},{"title":"Low Output","offer_id":46005957427253,"sku":"Sonata 4-LO","price":850.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2246\/9355\/files\/GradoPlatinum4_c1e14d64-daa9-44cc-9ace-50f2aa230ab7.jpg?v=1789583939","url":"https:\/\/hificentre.com\/products\/grado-sonata-4-phono-cartridge","provider":"Hi-Fi Centre","version":"1.0","type":"link"}