RCF MB8N251

Reproduktor 8", 300W, 96dB, 60-3500Hz, X-max 4,8mm, hmotnost 2kg

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.

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 ohm
• 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 ohm
• 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: 5.1ohm
• 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 m2
• 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

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