{"product_id":"lowersubstitute-e1010","title":"Celestion CF1840JD 2400W 18\" Pro Audio PA Woofer 8 Ohm Subwoofer 4\" Voice Coil","description":"\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eBalanced airflow venting provides enhanced cooling\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eTwin demodulation rings\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eOptimised double suspension\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eNominal diameter: 457mm \/ 18in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003ePower rating: 1200W\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eContinuous power rating: 2400W\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRated impedance: 8O\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSensitivity: 97dB\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eFrequency range: 30-2500Hz\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eChassis type: Cast aluminium\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMagnet type: Ferrite\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMagnet weight: 3.18kg \/ 112oz\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eVoice coil diameter: 100mm \/ 4in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eVoice coil material: Round copper\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eFormer material: Glass fibre\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCone material: Kevlar loaded paper\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSurround material: Cloth-sealed\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSuspension: Double\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eGap height (Hg): 10mm \/ 0.39in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eVC winding height (Hvc): 30mm \/ 1.18in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eAdditional impedances: 4O\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eParameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSd: 1134.12cm2 \/ 175.79in2\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eFs: 37.00Hz\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMms: 217.40g \/ 7.67oz\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQms: 4.372\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQes: 0.437\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQts: 0.397\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRe: 5.29O\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eVas: 155l \/ 5.47ft3\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eBI: 24.76Tm\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCms: 0.09mm\/N\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRms: 11.56kg\/s\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLe (at 1kHz): 1.16mH\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eXmax: 12.5mm \/ 0.49in\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003ePacked Dimensions \u0026amp; Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSingle pack size W x D x H: 500mm x 500mm x 255mm \/ 19.7in x 19.7in x 10in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSingle pack weight: 13kg \/ 28.6lb\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMulti pack qty: 24\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMulti pack size W x D x H: 1210mm x 1050mm x 1070mm \/ 47.6in x 41.3in x 42.1in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMulti pack weight: 305kg \/ 670lb\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eMounting Information:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eOverall diameter: 460mm \/ 18.11in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eOverall depth: 220mm \/ 8.7in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCut-out diameter: 414mm \/ 16.24in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMounting hole dimensions: 11x7mm \/ 0.43x0.28in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eNumber of mounting holes: 8\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMounting hole PCD: 441-432mm \/ 17.36-17.01in\u003c\/span\u003e\u003c\/li\u003e\r\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eUnit weight: 11.6kg \/ 25.5lb\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Celestion","offers":[{"title":"Default Title","offer_id":52221638345005,"sku":"CF1840JD 8 Ohm","price":310.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/0805\/3037\/files\/2628952.jpg?v=1784037572","url":"https:\/\/audiosavings.com\/products\/lowersubstitute-e1010","provider":"Audio Savings","version":"1.0","type":"link"}