RCF MB15H401 15" Mid-Bass w/ 4" Voice Coil

• 4-inch, fiberglass inside/outside aluminum voice coil
• 1400W continuous program power handling
• 100 dB Sensitivity
• 40 Hz 2 kHz Frequency range
• Dual spider design with silicon based dampening control
• Triple-roll surround and corrugated straight cone geometry
• Aluminum demodulation ring

General specifications
Cone Design: Curved
Demodulation Rings material: Aluminium
Effective piston diameter: 340 mm / 13.39 inch
Frequency range: 40 - 2000 Hz
Kind of layers: inside/outside
Magnets: Ceramic
Max. Excursion Before Damage: 50 mm / 1.97 inch
Minimim Impedance: 7 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: 100 dB
Spider: Dual with silicon based damping control
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: 21 mm / 0.83 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: 352 mm / 13.86 inch
Overall diameter: 393 mm / 15.47 inches
Rear mount baffle cut-out: 360 mm / 14.17 inch
Volume occupied by the driver: 4.3 liters / 0.17 ft3

Size
Diameter: 393 mm / 15.47 inches
Height: 164 mm / 6.46 inches
Weight: 12 kg / 26.46 lbs

Standard compliance
CE marking: Yes

Thiele - small parameters
BL factor (BL): 22.10 T x m
DC resistance (Re): 5.40 ohm
Effective moving mass (Mms): 107 gr
Effettive piston area (Sd): 0.09 m2
Electrical factor (Qes): 0.32 Qes
Equivalent Cas air loaded (Vas): 121 liters
Half-space efficency (Eff): 3.11%
Max. linear excursion (Xmax): 8 mm
Mechanical factor: 4.80 Qms
Resonance frequency (Fs): 44 Hz
Total factor: 0.30 Qts
Voice coil inductance @ 1kHz (Le1k): 0.70 mH

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