Speaker 12", 500W, 97.5dB, 40-2500Hz, X-max 6.8mm, weight 3.4kg The LF12N301 is a powerful 12” neodymium woofer with exceptional sensitivity and excursion capabilities. Its magnetic structure is driven by a large neodymium magnet, providing a high flux density in the gap. The new hyper-vented aluminum basket and magnetic assembly design ensure excellent heat dissipation and reduced power compression. Special air-forced ventilations are included for the voice coil, magnet assembly, and basket. Features: - 3.0-inch fiberglass inside/outside copper voice coil - 1000 Watt continuous program power handling - 97.5 dB Sensitivity - 40 Hz - 2.5 kHz Frequency range - Dual-forced air ventilation for minimum power compression - M-roll surround and exponential cone geometry General Specifications: - Nominal Diameter: 300 / 12 mm/inch - Rated Impedance: 8 ohm - Program Power: 1000 W AES - Power handling capacity: 500 W AES - Sensitivity: 97.5 dB - Frequency Range: 40 Hz ÷ 2500 Hz - Effective Piston Diameter: 260 / 10.2 mm/inch - Max Excursion Before Damage (peak to peak): 34 / 1.34 mm/inch - Minimum Impedance: 5.9 ohm - Voice Coil Diameter: 76 / 3.0 mm/inch - Voice Coil Material: Copper Voice Coil - Winding Depth: 18.5 / 0.73 mm/inch - Number of layers: 2 - Kind of layer: inside / outside - Top Plate Thickness: 10 / 0.39 mm/inch - Cone Material: No pressed pulp - Cone Design: Curved - Surround Material: Polycotton - Surround Design: M-roll Thiele/Small Parameters: - Resonance frequency: 48 Hz - DC resistance: 5.5 ohm - Mechanical factor: 6.4 - Electrical factor: 0.22 - Total factor: 0.21 - BL Factor: 21.5 T · m - Effective Moving Mass: 62 g - Equivalent Cas air load: 70 liters - Effective piston area: 0.053 m2 - Max. linear excursion (mathematical): 6.8 mm - Voice-coil inductance @ 1kHz: 1.8 mH - Half-space efficiency: 3.10% Mounting information: - Overall Diameter: 320 / 12.6 mm/inch - Bolt Circle Diameter: 294.5-304 / 11.6-11.9 mm/inch - Bolt Hole Diameter: 5.5 / 0.21 mm/inch - Front Mount Baffle Cut-out: 288 / 11.3 mm/inch - Rear Mount Baffle Cut-out: 288/11.3 mm/inch - Depth: 133 / 5.24 mm/inch - Volume occupied by the driver: 2.2 / 0.008 liters/ft3 - Net Weight: 3.4 / 7.5 kg/lbs Shipping information: - Shipping weight: 4.2 / 9.2 kg/lbs