{"product_id":"rcf-lf18n451-woofer-18-8-ohm-3000w","title":"RCF LF18N451 Woofer 18\" 8 ohm 3000W","description":"\u003cp data-start=\"0\" data-end=\"12\"\u003eDescription:\u003c\/p\u003e \u003cp data-start=\"14\" data-end=\"391\"\u003eThe LF18N451 is a high-performance 18\" low-frequency transducer engineered for demanding subwoofer applications requiring high output, efficiency, and precision. Designed to deliver powerful and accurate sub-bass frequencies, it is ideal for touring systems, large-scale PA setups, and professional installations where low distortion and minimal power compression are critical.\u003c\/p\u003e \u003cp data-start=\"393\" data-end=\"738\"\u003eFeaturing a 4.5\" inside\/outside copper voice coil, the driver is optimised for high excursion and improved linearity at low frequencies. The fibre-loaded cone, combined with a large triple-roll surround and dual spider system with silicon-based damping, ensures excellent mechanical stability and control even under extreme operating conditions.\u003c\/p\u003e \u003cp data-start=\"740\" data-end=\"1031\"\u003eAdvanced engineering includes a neodymium magnet structure, optimised T-pole design to reduce flux modulation, and a dual-forced air ventilation system for efficient cooling. This results in fast transient response, reduced distortion, and consistent performance during high-power operation.\u003c\/p\u003e \u003cp data-start=\"1033\" data-end=\"1042\"\u003eFeatures:\u003c\/p\u003e \u003cp data-start=\"1044\" data-end=\"1083\"\u003eType: 18\" High-Power Subwoofer Driver\u003c\/p\u003e \u003cp data-start=\"1085\" data-end=\"1151\"\u003ePower Handling: 1500W RMS \/ 3000W Program\u003cbr data-start=\"1126\" data-end=\"1129\"\u003eSensitivity: 97.5 dB\u003c\/p\u003e \u003cp data-start=\"1153\" data-end=\"1293\"\u003eVoice Coil: 4.5\" Copper Voice Coil (Inside\/Outside Winding)\u003cbr data-start=\"1212\" data-end=\"1215\"\u003eCone: Fibre-Loaded Cone Assembly\u003cbr data-start=\"1247\" data-end=\"1250\"\u003eSurround: Triple-Roll Polycotton Surround\u003c\/p\u003e \u003cp data-start=\"1295\" data-end=\"1382\"\u003eDesign: Dual Spider with Silicon-Based Damping\u003cbr data-start=\"1341\" data-end=\"1344\"\u003eCooling: Dual-Forced Air Ventilation\u003c\/p\u003e \u003cp data-start=\"1384\" data-end=\"1462\"\u003eMagnet: Neodymium\u003cbr data-start=\"1401\" data-end=\"1404\"\u003eBL Factor: 30.2 Tm for Fast and Accurate Low Frequencies\u003c\/p\u003e \u003cp data-start=\"1464\" data-end=\"1583\"\u003ePerformance: High Excursion Design with Low Distortion\u003cbr data-start=\"1518\" data-end=\"1521\"\u003eApplication: Subwoofers, touring systems, and large-scale PA\u003c\/p\u003e \u003cp data-start=\"1585\" data-end=\"1600\"\u003eSpecifications:\u003c\/p\u003e \u003cp data-start=\"1602\" data-end=\"1675\"\u003eNominal Diameter: 18\" (457mm)\u003cbr data-start=\"1631\" data-end=\"1634\"\u003eImpedance: 8Ω\u003cbr data-start=\"1647\" data-end=\"1650\"\u003eMinimum Impedance: 6.3Ω\u003c\/p\u003e \u003cp data-start=\"1677\" data-end=\"1745\"\u003eFrequency Response: 30Hz – 1000Hz\u003cbr data-start=\"1710\" data-end=\"1713\"\u003eResonance Frequency (Fs): 31Hz\u003c\/p\u003e \u003cp data-start=\"1747\" data-end=\"1801\"\u003eVoice Coil Diameter: 114mm\u003cbr data-start=\"1773\" data-end=\"1776\"\u003eVoice Coil Length: 26mm\u003c\/p\u003e \u003cp data-start=\"1803\" data-end=\"1847\"\u003eSensitivity: 97.5 dB\u003cbr data-start=\"1823\" data-end=\"1826\"\u003eBL Factor: 30.20 Tm\u003c\/p\u003e \u003cp data-start=\"1849\" data-end=\"1897\"\u003eXmax: 9mm\u003cbr data-start=\"1858\" data-end=\"1861\"\u003eMax Excursion (Peak-to-Peak): 60mm\u003c\/p\u003e \u003cp data-start=\"1899\" data-end=\"1972\"\u003eEffective Piston Diameter: 395mm\u003cbr data-start=\"1931\" data-end=\"1934\"\u003eEffective Piston Area (Sd): 0.120 m²\u003c\/p\u003e \u003cp data-start=\"1974\" data-end=\"2083\"\u003eMounting Diameter: 465mm\u003cbr data-start=\"1998\" data-end=\"2001\"\u003eBolt Circle Diameter: 442–447mm\u003cbr data-start=\"2032\" data-end=\"2035\"\u003eCut-Out (Front): 424mm\u003cbr data-start=\"2057\" data-end=\"2060\"\u003eCut-Out (Rear): 425mm\u003c\/p\u003e \u003cp data-start=\"2085\" data-end=\"2116\"\u003eDepth: 223mm\u003cbr data-start=\"2097\" data-end=\"2100\"\u003eWeight: 10.5kg\u003c\/p\u003e \u003cp data-start=\"2118\" data-end=\"2174\"\u003eMagnet Type: Neodymium\u003cbr data-start=\"2140\" data-end=\"2143\"\u003eSurround Material: Polycotton\u003c\/p\u003e \u003cp data-start=\"2176\" data-end=\"2190\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eCompliance: CE\u003c\/p\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":51873740751168,"sku":"150-11100046","price":379.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/9322\/1184\/files\/5856af70-b471-4b6a-a60f-daf0be674991.jpg?v=1776925153","url":"https:\/\/www.simplysoundandlighting.co.uk\/de\/products\/rcf-lf18n451-woofer-18-8-ohm-3000w","provider":"Simply Sound and Lighting","version":"1.0","type":"link"}