Speaker 15", 1300W, 97dB, 35-1500Hz, X-max 8.7mm, weight 11.38kg The LF15N451 is a high-power handling woofer designed to deliver powerful and precise bass frequencies with minimal distortion and power compression. It boasts ultra-fast time response and features a fiber-loaded cone assembly with a large triple roll surround for exceptional strength and control. The double silicon spider system ensures excellent control during significant excursions, while the fully optimized T-pole design minimizes flux modulation for reduced distortion. This transducer is built with a robust neodymium magnetic structure and a new 4.5" inside-outside copper coil, providing higher handling capabilities compared to standard 4" voice coil designs. The unique Dual-forced air venting system efficiently ventilates the voice coil to minimize power compression. Features: - 4.5-inch fiberglass inside/outside copper voice coil - 2600 Watt continuous program power handling - 97 dB Sensitivity - 35 Hz – 1.5 kHz Frequency range - Dual-forced air ventilation for minimum power compression - Dual spider design with silicon-based damping control - BL of 33.5 T/m for faster and accurate low frequencies General Specifications: - Nominal Diameter: 380 / 15 mm/inch - Rated Impedance: 8 ohm - Program Power: 2600 W AES - Power handling capacity: 1300 W - AES Sensitivity: 97 dB - Frequency Range: 35 Hz ÷ 1500 Hz - Effective Piston Diameter: 340/13.4 mm/inch - Max Excursion Before Damage (peak to peak): 64 / 2.51 mm/inch - Minimum Impedance: 7.4 ohm - Voice Coil Diameter: 115 / 4.5 mm/inch - Voice Coil Material: Copper Voice Coil - Winding Depth: 25 / 1.0 mm/inch - Number of layers: 2 - Kind of layer: inside / outside - Top Plate Thickness: 15 / 0.6 mm/inch - Cone Material: No pressed pulp - Cone Design: Straight - Surround Material: Polycotton - Surround Design: Triple roll Thiele/Small Parameters: - Resonance frequency: 35 Hz - DC resistance: 5.1 ohm - Mechanical factor: 4.2 - Electrical factor: 0.19 - Total factor: 0.18 - BL Factor: 33.5 T · m - Effective Moving Mass: 171 g - Equivalent Cas air load: 125 liters - Effective piston area: 0.091 m2 - Max. linear excursion (mathematical): 8.7 mm - Voice-coil inductance @ 1kHz: 2.6 mH - Half-space efficiency: 2.64% Mounting information: - Overall Diameter: 393 / 15.5 mm/inch - Bolt Circle Diameter: 371-376 / 14.6-14.8 mm/inch - Bolt Hole Diameter: 6.5 / 0.25 mm/inch - Front Mount Baffle Cut-out: 354 / 13.9 mm/inch - Rear Mount Baffle Cut-out: 354 / 13.9 mm/inch - Depth: 157 / 6.2 mm/inch - Volume occupied by the driver: 3.8 / 0.13 liters/ft3 - Net Weight: 9.9 / 21.7 kg/lbs Shipping information: - Shipping weight: 11.38 / 25 kg/lbs