{"product_id":"rcf-l18p300-stand-alone-fiberglass-18-woofer","title":"RCF L18P300 Stand-alone Fiberglass 18 Woofer","description":"\u003ch1\u003e\u003cstrong\u003e\u003cem\u003eOverview\u003c\/em\u003e\u003c\/strong\u003e\u003c\/h1\u003e\u003cp\u003eIn production for over 20 years, the L18P300 is an industry-standard. With 15 mm thick plates and specially designed suspensions, the sturdy magnetic unit ensures an excellent amplitude control of over +\/- 12 millimeters. The special cooling system with forced air ventilation offers excellent heat dissipation and minimum power compression. Voice coil construction, suspensions, and cone materials can withstand massive RMS power. The L18P300 finds its best application in bass reflex and bandpass systems. Its capacity to reproduce extremely low frequencies with remarkable definition makes it one of the favorite woofer in its category, ideal for live and recorded music.\u003cstrong\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch1\u003e\u003cstrong\u003e\u003cem\u003eFeatures\u003c\/em\u003e\u003c\/strong\u003e\u003c\/h1\u003e\u003cul class=\"mb-5 px-0\" style=\"margin-bottom: var(--spacer-5) !important; padding: 0px 0px 0px 18px !important;\"\u003e\n\u003cli\u003e4-inch, fiberglass inside\/outside copper voice coil\u003c\/li\u003e\n\u003cli\u003e2000W continuous program power handling\u003c\/li\u003e\n\u003cli\u003e97 dB Sensitivity\u003c\/li\u003e\n\u003cli\u003e35 Hz – 1.5 kHz Frequency range\u003c\/li\u003e\n\u003cli\u003eForced air ventilation and 15mm top plate for minimum power compression\u003c\/li\u003e\n\u003cli\u003eDual spider design with silicone based dampening control\u003c\/li\u003e\n\u003cli\u003eM-roll surround and exponential cone geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch1\u003e\u003cstrong\u003e\u003cem\u003eSpecifications\u003c\/em\u003e\u003c\/strong\u003e\u003c\/h1\u003e\u003cp\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\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 (Watt): 2000 W\u003c\/li\u003e\n\u003cli\u003ePower handling capacity: 1000 W\u003c\/li\u003e\n\u003cli\u003eSensitivity: 97.0 dB\u003c\/li\u003e\n\u003cli\u003eFrequency Range: 35-1000 Hz\u003c\/li\u003e\n\u003cli\u003eEffective Piston Diameter: 14.96 inch\/380 mm\u003c\/li\u003e\n\u003cli\u003eMax. Excursion Before Damage: 1.57 inch\/40 mm\u003c\/li\u003e\n\u003cli\u003eMinimum Impedance (ohm): 6.0 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: 0.91 inch\/23 mm\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: 15 mm\/0.59 inches\u003c\/li\u003e\n\u003cli\u003eCone Design: Curved\u003c\/li\u003e\n\u003cli\u003eSurround Material: Polycotton\u003c\/li\u003e\n\u003cli\u003eSurround Design: M-roll\u003c\/li\u003e\n\u003cli\u003eMagnets: Ceramic\u003c\/li\u003e\n\u003cli\u003eDual-force air ventilation: Yes\u003c\/li\u003e\n\u003cli\u003eSpider: Dual with silicon based damping control\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eThiele - Small Parameters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eResonance Frequency (Fs): 33 Hz\u003c\/li\u003e\n\u003cli\u003eDC Resistance (Re)(ohm): 5.00 ohm\u003c\/li\u003e\n\u003cli\u003eMechanical factor; 8.30 Qms\u003c\/li\u003e\n\u003cli\u003eElectrical factor: 0.34 Qes\u003c\/li\u003e\n\u003cli\u003eTotal factor: 0.33 Qts\u003c\/li\u003e\n\u003cli\u003eBI factor (BI) (T x m): 23.50 T x m\u003c\/li\u003e\n\u003cli\u003eEffective moving mass (Mms): 180.0 g\u003c\/li\u003e\n\u003cli\u003eEquivalent Cas air loaded (Vas): 226.0 liters\u003c\/li\u003e\n\u003cli\u003eEffective piston area (Sd): 0.110 m2\u003c\/li\u003e\n\u003cli\u003eMax. linear excursion (Xmax): 8 mm\u003c\/li\u003e\n\u003cli\u003eVoice coil inductance @ 1kHz (Le1k): 1.80 mH\u003c\/li\u003e\n\u003cli\u003eHalf-space efficiency (Eff): 2.30%\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMounting Information\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOverall diameter: 460 mm\/18.11 inches\u003c\/li\u003e\n\u003cli\u003eBolt circle diameter: 438 mm\/17.24 inches\u003c\/li\u003e\n\u003cli\u003eBolt hole diameter: 8 mm\/0.31 inches\u003c\/li\u003e\n\u003cli\u003eFront mount baffle cut-out: 416 mm\/16.38 inches\u003c\/li\u003e\n\u003cli\u003eRear mount baffle cut-out418 mm\/16.46 inches\u003c\/li\u003e\n\u003cli\u003eVolume occupied by the driver: 6.5 liters\/0.26  ft3\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeight:202 mm\/7.95 inches\u003c\/li\u003e\n\u003cli\u003eDiameter: 460 mm\/18.11 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 13 kg\/28.66 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eShipping Information\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePackage height: 270 mm\/10.63 inches\u003c\/li\u003e\n\u003cli\u003ePackage width: 520 mm\/20.47 inches\u003c\/li\u003e\n\u003cli\u003ePackage depth: 495 mm\/19.49 inches\u003c\/li\u003e\n\u003cli\u003ePackage weight: 15 kg\/33.07 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch1\u003e\u003cstrong\u003e\u003cem\u003eWhat's in the Box? \u003c\/em\u003e\u003c\/strong\u003e\u003c\/h1\u003e\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eRCF L18P300 Standalone 18\" woofer\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":52862844469359,"sku":"L18P300-SHOP","price":469.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/5229\/5535\/files\/1828808.png?v=1774750509","url":"https:\/\/digitaldjgear.com\/products\/rcf-l18p300-stand-alone-fiberglass-18-woofer","provider":"Digital DJ Gear","version":"1.0","type":"link"}