RCF 15" Speaker, 900W, 97dB, 35-1500Hz, X-max 8.8mm, weight 8.6kg The LF15N401 is a powerful speaker designed for applications that demand high power handling, long excursion, and lightweight construction. It features a fiber-loaded cone assembly with a high excursion triple roll, constant geometry surround, providing exceptional strength and a peak-to-peak maximum excursion of 52mm. The speaker also incorporates a unique Dual-forced air venting system for efficient voice coil ventilation, reducing power compression and enhancing power handling capabilities. Features: - 4-inch fiberglass inside/outside copper voice coil - 1600W continuous program power handling - 97 dB sensitivity - 30 Hz – 1.5 kHz frequency range - Dual spider design with silicon-based dampening control - Triple-roll surround and corrugated straight cone geometry General Specifications: - Nominal Diameter: 380 / 15 mm/inch - Rated Impedance: 8 ohm - Program Power: 1600 W AES - Power handling capacity: 800 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): 52 / 2.1 mm/inch - Minimum Impedance: 6.1 ohm - Depth: 23 / 0.9 mm/inch - Number of layers: 2 - Kind of layer: inside / outside - Top Plate Thickness: 12 / 0.5 mm/inch - Cone Material: No pressed pulp - Cone Design: Straight - Surround Material: Polycotton - Surround Design: Triple roll Thiele/Small Parameters: - Resonance frequency: 36 Hz - DC resistance: 4.8 ohm - Mechanical factor: 6.2 - Electrical factor: 0.27 - Total factor: 0.26 - BL Factor: 24.6 T · m - Effective Moving Mass: 150 g - Equivalent Cas air load: 150 liters - Effective piston area: 0.091 m2 - Max. linear excursion (mathematical): 8.5 mm - Voice-coil inductance @ 1kHz: 2.5 mH - Half-space efficiency: 2.50% 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 / 0.3 mm/inch - Front Mount Baffle Cut-out: 352 / 13.9 mm/inch - Rear Mount Baffle Cut-out: 360 / 14.2 mm/inch - Depth: 158 / 6.2 mm/inch - Volume occupied by the driver: 4.3 / 0.15 liters/ft3 - Net Weight: 12.2 / 26.8 kg/lbs Shipping information: - Shipping weight: 12.8 / 28.4 kg/lbs