RCF MB12N251 8/ohm

Reproduktor 12", 300W, 98dB, 45-300Hz, X-max 4,8mm, hmotnost 2,7kg

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.

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 ohm
• 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 ohm
• 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: 5.1ohm
• 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 m2
• 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