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MB12N251

MID - BASS

The MB12N251 is a 12”  neodymium mid-bass driver with an excellent linearity, good efficiency and high power handling capabilities. The 2,5” aluminium voice coil combined with a high strength fibreglass former allows high efficiency and good frequency response extension. Aluminium basket and magnetic assembly design provide an excellent heat dissipation and very low power compression.

 

The Triple-roll shape combined to spider design offer very low distortion and extended low frequency reproduction.

 

Applications
  • • The MB12N251 finds its application in 2-way bass reflex system, typically combined with 1" and 1,4" throat compression drivers. Ideal for light weight portable applications.
Part Number
  • • 11100065
Features
  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 98 dB Sensitivity
  • 45 Hz - 3.0 kHz Frequency range
  • Forced air ventilation
  • M-roll surround and exponential cone geometry
General Specifications
  • Nominal Diameter: 300 / 12 mm/inch
  • Rated Impedance: 8 Ω
  • Program Power: 600 W AES
  • Power handling capacity: 300 W AES
  • Sensitivity: 98 dB
  • Frequency Range: 45 Hz ÷ 3000 Hz
  • Effective Piston Diameter: 260 / 10.2 mm/inch
  • Max Excursion Before Damage (peak to peak): 38 / 1.49 mm/inch
  • Minimum Impedance: 6.4 Ω
  • Voice Coil Diameter: 64 / 2.51 mm/inch
  • Voice Coil Material: Aluminum
  • Voice Coil Winding Depth: 14 / 0.55 mm/inch
  • Number of layers: 1
  • Kind of layer: outside
  • Top Plate Thickness: 9 / 0.35 mm/inch
  • Cone Material: No pressed pulp
  • Cone Design: Curved
  • Surround Material: Polycotton
  • Surround Design: Triple-roll
Thiele/Small Parameters
  • Resonance frequency: 50 Hz
  • DC resistance: 5.1Ω
  • Mechanical factor: 5.4
  • Electrical factor: 0.36
  • Total factor: 0.34
  • BL Factor: 15 T · m
  • Effective Moving Mass: 49 g
  • Equivalent Cas air load: 83 liters
  • Effettive piston area: 0.053
  • Max. linear excursion (mathematical): 4.8 mm
  • Voice - coil inductance @ 1kHz: 1.3 mH
  • Half-space efficiency: 2.70%
Mounting information
  • Overall Diameter: 320 / 12.60 mm/inch
  • Bolt Circle Diameter: 294.5-304 / 11.6-11.9 mm/inch
  • Bolt Hole Diameter: 5.5 / 0.21 mm/inch
  • Front Mount Baffle Cut-out: 288 / 11.3 mm/inch
  • Rear Mount Baffle Cut-out: 288 / 11.3 mm/inch
  • Depth: 130 / 5.1 mm/inch
  • Volume occupied by the driver: 2.2 / 0.07 liters/ft³
  • Net Weight: 2.7 / 5.9 kg/lbs
Shipping information
  • Shipping weight: 3.5 / 7.7 kg/lbs

The data are not binding; RCF reserves the right to modify the data at any time and without previous notice.

The data are not binding; RCF reserves the right to modify the data at any time and without previous notice.