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MB8N251

MID - BASS

The MB8N251 is a 8” 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 M-roll surround shape combined to spider design offer good linear displacement and precise low frequency reproduction.

Applications
  • • The MB8N251 finds its application in compact 2-way bass reflex system where very high dynamic and power handling are required.
  • • Perfect for multi-way reflex enclosures such as line arrays.
Part Number
  • • 11100061
Features
  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 96 dB Sensitivity
  • 60 Hz - 3.5kHz Frequency range
  • Forced air ventilation
  • M-roll surround and exponential cone geometry
General Specifications
  • Nominal Diameter: 200 / 8 mm/inch
  • Rated Impedance: 8 Ω
  • Program Power: 600 W AES
  • Power handling capacity: 300 W AES
  • Sensitivity: 96 dB
  • Frequency Range: 60 Hz ÷ 3500 Hz
  • Effective Piston Diameter: 165 / 6.5 mm/inch
  • Max Excursion Before Damage (peak to peak): 40 / 1.57 mm/inch
  • Minimum Impedance: 6.0 Ω
  • Voice Coil Diameter: 64 / 2.50 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: M - roll
Thiele/Small Parameters
  • Resonance frequency: 68 Hz
  • DC resistance: 5.1Ω
  • Mechanical factor: 4.6
  • Electrical factor: 0.26
  • Total factor: 0.25
  • BL Factor: 15.2 T · m
  • Effective Moving Mass: 27.2 g
  • Equivalent Cas air load: 12.8 liters
  • Effettive piston area: 0.021
  • Max. linear excursion (mathematical): 4.8 mm
  • Voice - coil inductance @ 1kHz: 1.3 mH
  • Half-space efficiency: 1.70%
Mounting information
  • Overall Diameter: 239 / 9.41 mm/inch
  • Bolt Circle Diameter: 221-227 / 8.70-8.93 mm/inch
  • Bolt Hole Diameter: 6.5 / 0.26 mm/inch
  • Front Mount Baffle Cut-out: 185 / 7.28 mm/inch
  • Rear Mount Baffle Cut-out: 185 / 7.28 mm/inch
  • Depth: 92.5 / 3.64 mm/inch
  • Volume occupied by the driver: 0.6 / 0.02 liters/ft³
  • Net Weight: 2.0 / 4.41 kg/lbs
Shipping information
  • Shipping weight: 2.2 / 4.85 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.