RCF MB12N351, Mid-Bass 12", 650 Watt RMS / 8 Ohm

The MB12N351 is designed to provide an excellent frequency response linearity with very low distortion. A very strong neodymium magnetic structure guarantee dynamic and precision, a new and unique 3.5" voice coil design provides a very high power handling, especially recommended in comparison to a standard 3" voice coil. The unique Dual-forced air venting system guarantee a very efficient voice coil ventilation to minimize the power compression and provide higher power handling.

Features 3.5-inch, fiberglass inside/outside copper voice coil 1300W continuous program power handling 99 dB Sensitivity 45 Hz - 3 kHz Frequency range Dual-forced air ventilation for minimum power compression Single spider design with silicon based damping control

General Specifications Nominal Diameter: 300 / 12 mm/inch Rated Impedance: 8 Ohm Program Power: 1300 W AES Power handling capacity: 650 W AES Sensitivity: 99 dB Frequency Range: 45 Hz ÷ 3000 Hz Effective Piston Diameter: 260 / 10.2 mm/inch Max Excursion Before Damage (peak to peak): 39 / 1.5 mm/inch Minimum Impedance: 7.0 Ohm Voice Coil Diameter: 87 / 3.4 mm/inch Voice Coil Material: Copper Voice Coil Winding Depth: 16.5 / 0.65 mm/inch Number of layers: 2 Kind of layer: inside / outside Top Plate Thickness: 11 / 0.43 mm/inch Cone Material: No pressed pulp Cone Design: Curved Surround Material: Polycotton Surround Design: M - roll

Thiele/Small Parameters Resonance frequency: 55 Hz DC resistance: 5.6 Ohm Mechanical factor: 4.5 Electrical factor: 0.21 Total factor: 0.20 BL Factor: 22.5 T · m Effective Moving Mass: 54 g Equivalent Cas air load: 61 liters Effettive piston area: 0.053 m² Max. linear excursion (mathematical): 5.5 mm Voice - coil inductance @ 1kHz: 1.65 mH Half-space efficiency: 4.66%

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: 138 / 5.4 mm/inch Volume occupied by the driver: 2.2 / 0.077 liters/ft³ Net Weight: 4.4 / 9.7 kg/lbs