RCF 12" Speaker, 800W, 95dB, 45-2000Hz, X-max 6.8mm, weight 6.5kg The LF12N451 is engineered to deliver exceptional frequency response linearity with minimal distortion. Featuring a robust neodymium magnetic structure like the LF18N401, it ensures dynamic precision, while the standard 4" voice coil design offers high power handling. The unique Dual-forced air venting system ensures efficient voice coil ventilation, reducing power compression and enhancing power handling. **Features:** - 4-inch fiberglass inside/outside copper voice coil - 1600W continuous program power handling - 96 dB Sensitivity - 45 Hz – 2 kHz Frequency range - Dual-forced air ventilation for minimal power compression - Single spider design **General Specifications:** - Nominal Diameter: 300 / 12 mm/inch - Rated Impedance: 8 ohm - Program Power: 1600 W AES - Power handling capacity: 800 W AES - Sensitivity: 96 dB - Frequency Range: 45 Hz ÷ 2000 Hz - Effective Piston Diameter: 260 / 10.2 mm/inch - Max Excursion Before Damage (peak to peak): 50 / 1.96 mm/inch - Minimum Impedance: 7.2 ohm - Voice Coil Diameter: 100 / 4 mm/inch - Voice Coil Material: Copper - Voice Coil Winding Depth: 21 / 0.82 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:** - DC resistance: 5.5ohm - Mechanical factor: 9.1 - Electrical factor: 0.21 - Total factor: 0.20 - BL Factor: 26 T · m - Effective Moving Mass: 78 g - Equivalent Cas air load: 50 liters - Effective piston area: 0.053 m2 - Max. linear excursion (mathematical): 7.3 mm - Voice-coil inductance @ 1kHz: 1.7 mH - Half-space efficiency: 2.54% **Mounting information:** - Overall Diameter: 320 / 12.6 mm/inch - Bolt Circle Diameter: 293-304 / 11.5-12 mm/inch - Bolt Hole Diameter: 6.5 / 0.3 mm/inch - Front Mount Baffle Cut-out: 282 / 11.1 mm/inch - Rear Mount Baffle Cut-out: 284/11.2 mm/inch - Depth: 140 / 5.5 mm/inch - Volume occupied by the driver: 2.9 / 0.098 liters/ft3 - Net Weight: 6.5 / 14.3 kg/lbs **Shipping information:** - Shipping weight: 7.5 / 16.5 kg/lbs