RCF MB12G301 Mid-Bass

High efficiency 12" mid-bass. Very high sensitivity, excellent linearity and very low distortion. Voice coil construction, suspensions and cone materials designed to survive at 400 Watt RMS power. Features3-inch, fiberglass inside/outside copper voice coil800W continuous program power handling98 dB Sensitivity50 Hz " 3 kHz Frequency rangeM-roll surround and exponential cone geometrySpecificationsNominal Diameter: 300 / 12 mm/inchRated Impedance: 8 ΩProgram Power: 800 W AESPower handling capacity: 400 W AESSensitivity: 98 dBFrequency Range: 50 Hz · 3000 HzEffective Piston Diameter: 260 / 10.2 mm/inchMax Excursion Before Damage (peak to peak): 38 / 1.49 mm/inchMinimum Impedance: 7.2 ΩVoice Coil Diameter: 76 / 3 mm/inchVoice Coil Material: AluminumVoice Coil Winding Depth: 16 / 0.6 mm/inchNumber of layers: 2Kind of layer: inside / outsideTop Plate Thickness: 10 / 0.4 mm/inchCone Material: No pressed pulpCone Design: CurvedSurround Material: PolycottonSurround Design: M - rollResonance frequency: 53 HzDC resistance: 5.4ΩMechanical factor: 4.7Electrical factor: 0.28Total factor: 0.27BL Factor: 17 T · mEffective Moving Mass: 48 gEquivalent Cas air load: 72 litersEffettive piston area: 0.053 m²Max. linear excursion (mathematical): 5.5 mmVoice - coil inductance @ 1kHz: 0.7 mHHalf-space efficiency: 3.69%Overall Diameter: 320 / 12.6 mm/inchBolt Circle Diameter: 293-304 / 11.5-12 mm/inchBolt Hole Diameter: 6.5 / 0.3 mm/inchFront Mount Baffle Cut-out: 282 / 11.1 mm/inchRear Mount Baffle Cut-out: 284 / 11.2 mm/inchDepth: 138 / 5.4 mm/inchVolume occupied by the driver: 2.6 / 0.09 liters/ft³Net Weight: 7.3 / 16.2 kg/lbs