MB12N407

MID - BASS

The MB12N407 is a ultra lightweight , shallow design, 12” neodymium mid-bass driver. The vented 4” voice coil design and the minimum weight make the MB12N407 a unique product in his category. The new hyper-vented aluminium basket and magnetic assembly design provide an excellent heat dissipation and lower power compression. Special air-forced ventilations are provided for voice coil, magnet assembly and basket. A large neodymium magnet disc powers the magnetic structure providing an extremely high flux density in the gap.

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Applications
  • • The MB12N407 is ideal in applications where very high power handling, very high efficiency and system portability are required. Perfect for mid-bass applications in compact two-way or three-way systems.
Part Number
  • • 11100067
Features
  • 4-inch , fibreglass inside-outside copper voice coil
  • 1400 Watt continuous program power handling
  • 98 dB Sensitivity
  • 40Hz – 2.0KHz Frequency range
  • Dual-forced air ventilation for minimum power compression
  • Triple-roll surround and exponential cone geometry
  • Ultra lightweight 4"
General Specifications
  • Nominal Diameter: 300 / 12 mm/inch
  • Rated Impedance: 8 Ω
  • Program Power: 1400 W AES
  • Power handling capacity: 700 W AES
  • Sensitivity: 98 dB
  • Frequency Range: 40 Hz ÷ 2000 Hz
  • Effective Piston Diameter: 260 / 10.2 mm/inch
  • Max Excursion Before Damage (peak to peak): 45 / 1.77 mm/inch
  • Minimum Impedance: 6.8 Ω
  • Voice Coil Diameter: 100 / 4 mm/inch
  • Voice Coil Material: Copper
  • Voice Coil Winding Depth: 19 / 0.75 mm/inch
  • Number of layers: 2
  • Kind of layer: inside/outside
  • Top Plate Thickness: 12 / 0.47 mm/inch
  • Cone Material: No pressed pulp
  • Cone Design: Curved
  • Surround Material: Polycotton
  • Surround Design: Triple-roll
Thiele/Small Parameters
  • Resonance frequency: 48 Hz
  • DC resistance: 5.1Ω
  • Mechanical factor: 6.2
  • Electrical factor: 0.20
  • Total factor: 0.19
  • BL Factor: 26.8 T · m
  • Effective Moving Mass: 88.5 g
  • Equivalent Cas air load: 50 liters
  • Effettive piston area: 0.053
  • Max. linear excursion (mathematical): 6.5 mm
  • Voice - coil inductance @ 1kHz: 0.79 mH
  • Half-space efficiency: 2.8%
Mounting information
  • Overall Diameter: 303 / 12.0 mm/inch
  • Bolt Circle Diameter: 293.5-294.5 / 11.5-11.6 mm/inch
  • Bolt Hole Diameter: 5.5 / 0.21 mm/inch
  • Front Mount Baffle Cut-out: 284 / 11.18 mm/inch
  • Rear Mount Baffle Cut-out: 286 / 11.25 mm/inch
  • Depth: 115 / 4.53 mm/inch
  • Volume occupied by the driver: 2.6 / 0.08 liters/ft³
  • Net Weight: 4.5 / 9.9 kg/lbs
Shipping information
  • Shipping weight: 5.3 / 11.6 kg/lbs
The data are not binding; RCF reserves the right to modify the data at any time and without previous notice.