RCF MB12N351 12-inch woofer

Product specifications

• 12-inch woofer
• 3.5-inch fibreglass interior exterior copper voice coil 
• 1,300 watts of continuous programming power
• sensitivity: 99 dB
• frequency range: 45 Hz - 3 kHz
• double forced air ventilation system for minimal power compression 
• single spider design for minimal power compression 
• nominal diameter: 300 mm / 12 inches
• nominal impedance: 8 ohms
• program power: 1,300 AES
• power handling capacity: 650 W AES 
• sensitivity: 99 dB
• frequency range: 45 Hz – 3,000 Hz
• effective piston diameter: 260 mm / 10.2 inches
• maximum excursion before damage (peak to peak): 39 mm / ¼ inch
• minimum impedance: 7 ohms
• diameter voice coil : 87 mm / 3.4 inches
• voice coil material: copper
• voice coil winding depth: 16.5 mm / 3.4 inch
• number of layers: 2
• layer type: inside/outside
• thickness top plate: 11 mm / 0.43 inch
• cone material: no pressed pulp
• cone design: curved
• surrounding material: polycotton
• surrounding design: M-Roll
• resonance frequency: 55 Hz
• DC resistance: 5.6 ohms
• mechanical factor: 4.5
• electrical factor: 0.21
• total factor: 0.20
• BL factor: 22.5 T – m
• equivalent Cas air load: 61 L
• effective piston area: 0.053 m²
• maximum linear excursion (mathematical) 5.5 mm
• voice - coil inductance @ 1KHz: 1.65 mH
• half-space efficiency: 4.66%
• overall diameter: 320 mm / 12.6 inches
• diameter bolt circle: 293-304 mm / 11.5 - 12 inches 
• bolt hole diameter: 6.5 mm / 0.3 inches
• front mount baffle cut-out: 282 mm / 11.1 inches
• rear mount baffle cut-out: 284 mm / 11.2 inches
• depth: 138 mm / 5.4 inches
• volume occupied by the driver: 2.2 L
• nett weight: 4.4 kg