RCF MB 12 N351

The MB12N351 is designed to provide an excellent frequency response linearity with very low distortion. A very strong neodymium magnetic structure guarantee dynamic and precision, a new and unique 3.5” voice coil design provides a very high power handling, especially recommended in comparison to a standard 3" voice coil. The unique Dual-forced air venting system guarantee a very efficient voice coil ventilation to minimize the power compression and provide higher power handling.

More Information

3.5-inch, fiberglass inside/outside copper voice coil
1300W continuous program power handling
99 dB Sensitivity
45 Hz – 3 kHz Frequency range
Dual-forced air ventilation for minimum power compression
Single spider design with silicon based damping control

Technical Specification

GENERAL SPECIFICATIONS

Nominal Diameter: 380 / 15 mm/inch
Rated Impedance: 8 Ω
Program Power: 1400 W AES
Power handling capacity: 700 W AES
Sensitivity: 99 dB
Frequency Range: 40 Hz ÷ 2500 Hz
Effective Piston Diameter: 330/13 mm/inch
Max Excursion Before Damage (peak to peak): 40 / 1.57 mm/inch
Minimum Impedance: 6.5 Ω
Voice Coil Diameter: 87 / 3.5 mm/inch
Voice Coil Material: Copper
Voice Coil Winding Depth: 19 / 0.74 mm/inch
Number of layers: 2
Kind of layer: inside / outside
Top Plate Thickness: 10 / 0.39 mm/inch
Cone Material: No pressed pulp
Cone Design: Straight
Surround Material: Polycotton
Surround Design: M-roll

THIELE/SMALL PARAMETERS

Resonance frequency: 46 Hz
DC resistance: 5.4Ω
Mechanical factor: 6.7
Electrical factor: 0.33
Total factor: 0.31
BL Factor: 22.8 T · m
Effective Moving Mass: 106 g
Equivalent Cas air load: 114 liters
Effettive piston area: 0.086 m²
Max. linear excursion (mathematical): 7.0 mm
Voice - coil inductance @ 1kHz: 1,5 mH
Half-space efficiency: 3.20%

MOUNTING INFORMATION

Overall Diameter: 393 / 15.5 mm/inch
Bolt Circle Diameter: 371-376 / 14.6-14.8 mm/inch
Bolt Hole Diameter: 6.5 / 0.3 mm/inch
Front Mount Baffle Cut-out: 354 / 13.9 mm/inch
Rear Mount Baffle Cut-out: 354 / 13.9 mm/inch
Depth: 151 / 5.94 mm/inch
Volume occupied by the driver: 4.5 / 0.153 liters/ft³
Net Weight: 8.2 / 18.04 kg/lbs

SHIPPING INFORMATION

Shipping weight: 9 / 19.8 kg/lbs

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