The MB15N351 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 new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.
• 3.5-inch, fiberglass inside/outside copper voice coil
• 1400W continuous program power handling
• 99 dB Sensitivity
• 40 Hz 2.5 kHz Frequency range
• Dual Forced Hyperventing System
• Dual spider design with silicon based dampening control
• M-roll surround and corrugated straight cone geometry
General specifications
Cone Design: Curved
Dual-force air ventilation: Yes
Effective piston diameter: 330 mm / 12.99 inch
Frequency range: 40 - 2500 Hz
Kind of layers: inside/outside
Magnets: Ceramic
Max. Excursion Before Damage: 40 mm / 1.57 inch
Minimim Impedance: 6 ohm
Nominal Diameter: 15 inch / 381 mm
Number of layers: 2
Power handling capacity: 700 W
Program Power: 1400 W
Rated Impedance: 8 ohm
Sensitivity: 99 dB
Spider: Dual with silicon based damping control
Surround Design: M-roll
Surround Material: Polycotton
Top Plate Thickness: 10 mm / 0.39 inch
Voice Coil Diameter: 3.5 inch / 89 mm
Voice Coil Material: Copper
Voice Coil Winding Material: 19 mm / 0.75 inch
Mounting Information
Bolt circle diameter: 371-376 mm / 14.61-14.8 inch
Bolt hole diameter: 7 mm / 0.28 inch
Front mount baffle cut-out: 354 mm / 13.94 inch
Overall diameter: 393 mm / 15.47 inches
Rear mount baffle cut-out: 354 mm / 13.94 inch
Volume occupied by the driver: 4.5 liters / 0.18 ft3
Size
Diameter: 393 mm / 15.47 inches
Height: 167 mm / 6.57 inches
Weight: 8.2 kg / 18.08 lbs
Standard compliance
CE marking: Yes
Thiele - small parameters
BL factor (BL): 22.80 T x m
DC resistance (Re): 5.40 ohm
Effective moving mass (Mms): 106 gr
Effettive piston area (Sd): 0.09 m2
Electrical factor (Qes): 0.33 Qes
Equivalent Cas air loaded (Vas): 114 liters
Half-space efficency (Eff): 3.20%
Max. linear excursion (Xmax): 7 mm
Mechanical factor: 6.70 Qms
Resonance frequency (Fs): 46 Hz
Total factor: 0.31 Qts
Voice coil inductance @ 1kHz (Le1k): 0.90 mH
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