{"product_id":"rcf-lf15x400-replacement-woofer","title":"RCF LF15X400 Replacement Woofer","description":"\u003cp\u003eIncredibly linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 15-inch transducer within its application range. The LF15X400 uses a fibre loaded cone assembly along with a high excursion triple roll surround. This combination provides remarkable strength and a peak to peak maximum excursion of 52 mm. The T-pole also features RCF Precision’s spaced gap demodulation technology, progressively braking the voice coil, providing a much smoother transition for the moving mass as it reaches its maximum excursion limits. Forced air venting system.\u003cbr\u003e\n \u003cbr\u003e\nFeatures\u003c\/p\u003e\n\n\u003cp\u003e• 4-inch Inside\/outside copper voice coil\u003cbr\u003e\n• 1600 Watt continuous program power handling\u003cbr\u003e\n• 97 dB Sensitivity\u003cbr\u003e\n• 30 Hz - 1.5 kHz Frequency range\u003cbr\u003e\n• Progressive, spaced, aluminum demodulation rings\u003cbr\u003e\n• Forced air ventilation and 14 mm top plate for minimum power compression\u003cbr\u003e\n• Dual spider design with silicon based dampening control\u003cbr\u003e\n• Triple-roll surround and corrugated straight cone geometry\u003c\/p\u003e\n\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\n\u003cp\u003e• Nominal Diameter: 380\/15 mm\/inch\u003cbr\u003e\n• Rated Impedance: 8 ohm\u003cbr\u003e\n• Program Power: 1600 Watts\u003cbr\u003e\n• Power handling capacity: 800 Watts\u003cbr\u003e\n• Sensitivity: 97 dB\u003cbr\u003e\n• Frequency Range: 30 - 1500\u003cbr\u003e\n• Effective Piston Diameter: 340\/13.4 mm\/inch\u003cbr\u003e\n• Max Excursion Before Damage (peak to peak): 52\/2.1 mm\/inch\u003cbr\u003e\n• Minimum Impedance: 6.3 ohm\u003cbr\u003e\n• Voice Coil Diameter: 100\/4 mm\/inch\u003cbr\u003e\n• Voice Coil Material: Copper\u003cbr\u003e\n• Voice Coil Winding Depth: 23\/0.9 mm\/inch\u003cbr\u003e\n• Number of layers: 2\u003cbr\u003e\n• Kind of layer: inside\/outside\u003cbr\u003e\n• Top Plate Thickness: 14\/0.55\u003cbr\u003e\n• Cone Material: No pressed pulp\u003cbr\u003e\n• Cone Design: Straight\u003cbr\u003e\n• Surround Material: Polycotton\u003cbr\u003e\n• Surround Design: Triple roll\u003cbr\u003e\n• Resonance frequency: Fs: 37 Hz\u003cbr\u003e\n• DC resistance: Re: 5.0 ohm\u003cbr\u003e\n• Mechanical factor: Qms: 4.9\u003cbr\u003e\n• Electrical factor: Qes: 0.26\u003cbr\u003e\n• Total factor: Qts: 0.25\u003cbr\u003e\n• BL Factor: BL: 24 T · m\u003cbr\u003e\n• Effective Moving Mass: Mms: 130 gr\u003cbr\u003e\n• Equivalent Cas air load: Vas: 164 liters\u003cbr\u003e\n• Effettive piston area: Sd: 0.091 m2\u003cbr\u003e\n• Max. linear excursion (mathematical): Xmax: 8.0 mm\u003cbr\u003e\n• Voice - coil inductance @ 1KHz: Le1K: 2.1 mH\u003cbr\u003e\n• Half-space efficiency: Ef: 3.08 %\u003cbr\u003e\n• Overall Diameter: 393\/15.5 mm\/inch\u003cbr\u003e\n• Bolt Circle Diameter: 371 - 376 mm\/inch\u003cbr\u003e\n• Bolt Hole Diameter: 6.5\/0.3 mm\/inch\u003cbr\u003e\n• Front Mount Baffle Cut-out: 352\/13.9 mm\/inch\u003cbr\u003e\n• Rear Mount Baffle Cut-out: 360\/14.2 mm\/inch\u003cbr\u003e\n• Depth: 158\/6.2 mm\/inch\u003cbr\u003e\n• Volume occupied by the driver: 4.3 liters\/ft3\u003cbr\u003e\n• Net Weight: 12.6\/27.7 Kg\/Lbs\u003cbr\u003e\n• Shipping Weight: 13.6\/29.9 Kg\/Lbs\u003c\/p\u003e","brand":"RCF","offers":[{"title":"Default Title","offer_id":58451992871176,"sku":"LF15X400","price":342.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1057\/4076\/3400\/files\/img_proxy_718d9a9e-2b8a-4cc0-9351-6356516e447b.jpg?v=1786934084","url":"https:\/\/musictoner.shop\/products\/rcf-lf15x400-replacement-woofer","provider":"Musictoner","version":"1.0","type":"link"}