{"product_id":"rcf-mb15x351","title":"RCF MB15X351","description":"\u003cstrong\u003eOverview\u003c\/strong\u003e\u003cp\u003eThe MB15N351 is designed to provide an excellent frequency response linearity with very low distortion. A very strong neodymium magnetic structure guarantee dynamic and precision, a new and unique 3,5” voice coil design provides a very high power handling, especially recommended in comparison to a standard 3” voice coil. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.\u003c\/p\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cli\u003e3.5-inch, fiberglass inside\/outside copper voice coil\u003c\/li\u003e \u003cli\u003e1400W continuous program power handling\u003c\/li\u003e \u003cli\u003e99 dB Sensitivity\u003c\/li\u003e \u003cli\u003e40 Hz – 2.5 kHz Frequency range\u003c\/li\u003e \u003cli\u003eDual Forced Hyperventing System\u003c\/li\u003e \u003cli\u003eDual spider design with silicon based dampening control\u003c\/li\u003e \u003cli\u003eM-roll surround and corrugated straight cone geometry\u003c\/li\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cdiv\u003e \u003cstrong\u003e General specifications \u003c\/strong\u003e \u003cdiv\u003e\u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e Nominal Diameter : 15 inch \/ 381 mm \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Rated Impedance : 8 ohm \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Program Power (watt) : 1400 W \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Power handling capacity : 700 W \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Sensitivity : 99.0 dB \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Frequency range : 40 - 2500 Hz \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Effective piston diameter : 330 mm \/ 12.99 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Max. Excursion Before Damage : 40 mm \/ 1.57 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Minimum Impedance (ohm) : 6.5 ohm \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Voice Coil Diameter : 3.5 inch \/ 89 mm \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Voice Coil Winding Material : Copper \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Voice Coil Length : 19 mm \/ 0.75 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Number of layers : 2 \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Kind of layers : inside\/outside \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Top Plate Thickness : 10 mm \/ 0.39 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Cone Design : Curved \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Surround Material : Polycotton \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Surround Design : M-roll \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Magnets : Ceramic \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Dual-force air ventilation : Yes \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Spider : 03 \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e\u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cstrong\u003e Thiele - small parameters \u003c\/strong\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e Resonance frequency (Fs) : 46 Hz \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e DC resistance (Re) (ohm) : 5.40 ohm \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Mechanical factor : 6.70 Qms \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Electrical factor : 0.33 Qes \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Total factor : 0.31 Qts \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Bl factor (Bl) (T x m) : 22.80 T x m \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Effective moving mass (Mms) : 106.0 g \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Equivalent Cas air loaded (Vas) : 114.0 liters \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Effective piston area (Sd) : 0.090 m2 \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Max. linear excursion (Xmax) : 7 mm \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Voice coil inductance @ 1kHz (Le1k) : 0.90 mH \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Half-space efficency (Eff) : 3.20% \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cstrong\u003e Mounting information \u003c\/strong\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e Overall diameter : 393 mm \/ 15.47 inches \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Bolt circle diameter : 371-376 mm \/ 14.61-14.8 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Bolt hole diameter : 7 mm \/ 0.28 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Front mount baffle cut-out : 354 mm \/ 13.94 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Rear mount baffle cut-out : 354 mm \/ 13.94 inch \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Volume occupied by the driver : 4.5 liters \/ 0.18 ft3 \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cstrong\u003e Standard compliance \u003c\/strong\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e Safety agency : CE compliant \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cstrong\u003e Size \/ Weight \u003c\/strong\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e Height : 167 mm \/ 6.57 inches \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Diameter : 393 mm \/ 15.47 inches \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Weight : 8.2 kg \/ 18.08 lbs \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cstrong\u003e Shipping information \u003c\/strong\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e Package Height : 209 mm \/ 8.23 inches \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Package Width : 439 mm \/ 17.28 inches \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Package Depth : 434 mm \/ 17.09 inches \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e Package Weight : 9.5 kg \/ 20.94 lbs \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":43895053484075,"sku":"RCF-MB15X351","price":348.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/3019\/5243\/files\/11100101-1__07441.1733300734.1280.1280.jpg?v=1775701195","url":"https:\/\/www.empirepro.com\/products\/rcf-mb15x351","provider":"Empire Pro","version":"1.0","type":"link"}