{"product_id":"rcf-lf18g401-18-power-900w-rms-1800w-prog-sensitivity-98-db-freq-range-30-1000-hz","title":"RCF LF18G401 18\" Power: 900W rms, 1800W prog. Sensitivity: 98 dB Freq. Range 30-1000 Hz","description":"\u003ch2\u003eRCF LF18G401 18\" Power: 900W rms, 1800W prog. Sensitivity: 98 dB Freq. Range 30-1000 Hz\u003c\/h2\u003e\n\u003cp\u003eThe LF18G401 is a 18-inch woofer with linear frequency response cheracteristics and very high power handling. The LF18G401 uses a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround. This combination provides remarkable strength and peak to peak maximum excursion of 50mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4-inch, fiberglass inside\/outside copper voice coil\u003c\/li\u003e\n\u003cli\u003e1800W continuous program power handling\u003c\/li\u003e\n\u003cli\u003e98 dB Sensitivity\u003c\/li\u003e\n\u003cli\u003e30 Hz – 1 kHz Frequency range\u003c\/li\u003e\n\u003cli\u003eDual spider design with silicon based dampening control\u003c\/li\u003e\n\u003cli\u003eTriple-roll surround and corrugated straight cone geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal Diameter: 18 inch \/ 457 mm\u003c\/li\u003e\n\u003cli\u003eRated Impedance: 8 ohm\u003c\/li\u003e\n\u003cli\u003eProgram Power: 1800 W\u003c\/li\u003e\n\u003cli\u003ePower Handling Capacity: 900 W\u003c\/li\u003e\n\u003cli\u003eSensitivity: 98.0 dB\u003c\/li\u003e\n\u003cli\u003eFrequency Range: 30–1000 Hz\u003c\/li\u003e\n\u003cli\u003eEffective Piston Diameter: 395 mm \/ 15.55 inch\u003c\/li\u003e\n\u003cli\u003eMax. Excursion Before Damage: 50 mm \/ 1.97 inch\u003c\/li\u003e\n\u003cli\u003eMinimum Impedance: 5.9 ohm\u003c\/li\u003e\n\u003cli\u003eVoice Coil Diameter: 4.0 inch \/ 102 mm\u003c\/li\u003e\n\u003cli\u003eVoice Coil Winding Material: Copper\u003c\/li\u003e\n\u003cli\u003eVoice Coil Length: 23 mm \/ 0.91 inch\u003c\/li\u003e\n\u003cli\u003eNumber of Layers: 2\u003c\/li\u003e\n\u003cli\u003eKind of Layers: Inside\/Outside\u003c\/li\u003e\n\u003cli\u003eTop Plate Thickness: 12 mm \/ 0.47 inch\u003c\/li\u003e\n\u003cli\u003eCone Design: Straight\u003c\/li\u003e\n\u003cli\u003eSurround Material: Polycotton\u003c\/li\u003e\n\u003cli\u003eSurround Design: Triple Roll\u003c\/li\u003e\n\u003cli\u003eMagnets: Ceramic\u003c\/li\u003e\n\u003cli\u003eSpider: 03\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThiele–Small Parameters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Frequency (Fs): 33 Hz\u003c\/li\u003e\n\u003cli\u003eDC Resistance (Re): 4.80 ohm\u003c\/li\u003e\n\u003cli\u003eMechanical Factor (Qms): 7.60\u003c\/li\u003e\n\u003cli\u003eElectrical Factor (Qes): 0.30\u003c\/li\u003e\n\u003cli\u003eTotal Factor (Qts): 0.29\u003c\/li\u003e\n\u003cli\u003eBL Factor (Bl): 24.60 T × m\u003c\/li\u003e\n\u003cli\u003eEffective Moving Mass (Mms): 182.0 g\u003c\/li\u003e\n\u003cli\u003eEquivalent Cas Air Loaded (Vas): 268.0 liters\u003c\/li\u003e\n\u003cli\u003eEffective Piston Area (Sd): 0.120 m²\u003c\/li\u003e\n\u003cli\u003eMax. Linear Excursion (Xmax): 9 mm\u003c\/li\u003e\n\u003cli\u003eVoice Coil Inductance @ 1 kHz (Le1k): 1.80 mH\u003c\/li\u003e\n\u003cli\u003eHalf-Space Efficiency (Eff): 3.09%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOverall Diameter: 465 mm \/ 18.31 inches\u003c\/li\u003e\n\u003cli\u003eBolt Circle Diameter: 442–447 mm \/ 17.4–17.6 inch\u003c\/li\u003e\n\u003cli\u003eBolt Hole Diameter: 7 mm \/ 0.28 inch\u003c\/li\u003e\n\u003cli\u003eFront Mount Baffle Cut-Out: 424 mm \/ 16.69 inch\u003c\/li\u003e\n\u003cli\u003eRear Mount Baffle Cut-Out: 424 mm \/ 16.69 inch\u003c\/li\u003e\n\u003cli\u003eVolume Occupied by the Driver: 6 liters \/ 0.24 ft³\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Compliance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSafety Agency: CE Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSize \u0026amp; Weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeight: 196 mm \/ 7.72 inches\u003c\/li\u003e\n\u003cli\u003eDiameter: 465 mm \/ 18.31 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 13 kg \/ 28.66 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePackage Height: 260 mm \/ 10.24 inches\u003c\/li\u003e\n\u003cli\u003ePackage Width: 500 mm \/ 19.69 inches\u003c\/li\u003e\n\u003cli\u003ePackage Depth: 520 mm \/ 20.47 inches\u003c\/li\u003e\n\u003cli\u003ePackage Weight: 15 kg \/ 33.07 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":48653404176578,"sku":"LF18G401","price":689.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/2631\/5568\/files\/LF18G401-1.jpg?v=1787590748","url":"https:\/\/shop.solotech.com\/products\/rcf-lf18g401-18-power-900w-rms-1800w-prog-sensitivity-98-db-freq-range-30-1000-hz","provider":"Solotech","version":"1.0","type":"link"}