The MB15N405 is a hypervented neo mid-bass design with a linear frequency response and very high efficiency. To get this performance the magnetic structure use a high flux neo disc and the cone assembly a fibre loaded exponential shape along with a high excursion triple roll, constant geometry surround. The fibreglass former and aluminium voice coil provide a very high power handling maintaining a light mass and a proper Q factor for bass alignment.
• 4-inch, fiberglass inside/outside copper voice coil
• 2200W continuous program power handling
• 100 dB Sensitivity
• 45 Hz 2.5 kHz Frequency range
• Dual-forced air ventilation for minimum power compression
• Triple roll surround and exponential cone geometry
General specifications
Cone Design: Curved
Effective piston diameter: 340 mm / 13.39 inch
Frequency range: 45 - 2500 Hz
Hypervented magnetic structure: Yes
Kind of layers: inside/outside
Magnets: Neodymium
Max. Excursion Before Damage: 53 mm / 2.09 inch
Minimim Impedance: 5 ohm
Nominal Diameter: 15 inch / 381 mm
Number of layers: 2
Power handling capacity: 1100 W
Program Power: 2200 W
Rated Impedance: 8 ohm
Sensitivity: 100 dB
Spider: Single
Surround Design: Triple roll
Surround Material: Polycotton
Top Plate Thickness: 12 mm / 0.47 inch
Voice Coil Diameter: 4.0 inch / 102 mm
Voice Coil Material: Aluminium
Voice Coil Winding Material: 20 mm / 0.79 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: 3.8 liters / 0.15 ft3
Size
Diameter: 393 mm / 15.47 inches
Height: 160 mm / 6.3 inches
Weight: 8.6 kg / 18.96 lbs
Standard compliance
CE marking: Yes
Thiele - small parameters
BL factor (BL): 23.50 T x m
DC resistance (Re): 5.50 ohm
Effective moving mass (Mms): 98 gr
Effettive piston area (Sd): 0.09 m2
Electrical factor (Qes): 0.28 Qes
Equivalent Cas air loaded (Vas): 124 liters
Half-space efficency (Eff): 4.10%
Max. linear excursion (Xmax): 7 mm
Mechanical factor: 4.80 Qms
Resonance frequency (Fs): 46 Hz
Total factor: 0.27 Qts
Voice coil inductance @ 1kHz (Le1k): 1.10 mH
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