{"product_id":"grado-opus4","title":"Grado Opus4","description":"\u003cp\u003eOpus4 is the entry point into the Grado Timbre Series, introducing the tonal character and construction of Grado’s wood body cartridges. Built on decades of cartridge design experience, it delivers a balanced and musical presentation while maintaining the core performance principles that define Grado cartridges.\u003cbr\u003e\u003cbr\u003eUtilizing Grado’s moving iron design, Opus4 provides a stable and consistent signal with low moving mass and long-term reliability.\u003cbr\u003e\u003cbr\u003eOffered in both stereo and mono configurations, Opus4 represents the foundation of the Grado wood cartridge line\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCantilever: Aluminum\/Elliptical Diamond\u003c\/li\u003e\n\u003cli\u003eOutput:\u003cbr\u003eHigh 4.0mV @5 CMV (45)\u003cbr\u003eLow 1.0mV @5 CMV (45)\u003c\/li\u003e\n\u003cli\u003eInductance:\u003cbr\u003eHigh Output 55mH\u003cbr\u003eLow Output 6mH\u003c\/li\u003e\n\u003cli\u003eResistance:\u003cbr\u003eHigh Output 660 ohms\u003cbr\u003eLow Output 70 ohms\u003c\/li\u003e\n\u003cli\u003eInput Load: 10k-47k ohms\u003c\/li\u003e\n\u003cli\u003eCartridge Weight: 8.3 grams\u003c\/li\u003e\n\u003cli\u003eTracking Force: 1.6-1.9 grams\u003c\/li\u003e\n\u003cli\u003eCompliance: 20μm\/mN\u003c\/li\u003e\n\u003cli\u003eChannel Seperation: Average 30db - 10-30k Hz\u003c\/li\u003e\n\u003cli\u003eControlled Frequency Response: 10-60 kHz\u003c\/li\u003e\n\u003cli\u003eNon-Sensative to Capacitive Load\u003c\/li\u003e\n\u003cli\u003eBuilds: High Output, Low Output, Mono\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grado","offers":[{"title":"Default Title","offer_id":47077860573383,"sku":null,"price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/3661\/8695\/files\/Timbre-Opus.webp?v=1788296975","url":"https:\/\/www.audibleelegance.com\/products\/grado-opus4","provider":"Audible Elegance","version":"1.0","type":"link"}