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.
FeaturesRCF MB15X351
RCF MB15X351
Overview3.5-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 Specifications
General specifications
Nominal Diameter : 15 inch / 381 mm
Rated Impedance : 8 ohm
Program Power (watt) : 1400 W
Power handling capacity : 700 W
Sensitivity : 99.0 dB
Frequency range : 40 - 2500 Hz
Effective piston diameter : 330 mm / 12.99 inch
Max. Excursion Before Damage : 40 mm / 1.57 inch
Minimum Impedance (ohm) : 6.5 ohm
Voice Coil Diameter : 3.5 inch / 89 mm
Voice Coil Winding Material : Copper
Voice Coil Length : 19 mm / 0.75 inch
Number of layers : 2
Kind of layers : inside/outside
Top Plate Thickness : 10 mm / 0.39 inch
Cone Design : Curved
Surround Material : Polycotton
Surround Design : M-roll
Magnets : Ceramic
Dual-force air ventilation : Yes
Spider : 03
Thiele - small parameters
Resonance frequency (Fs) : 46 Hz
DC resistance (Re) (ohm) : 5.40 ohm
Mechanical factor : 6.70 Qms
Electrical factor : 0.33 Qes
Total factor : 0.31 Qts
Bl factor (Bl) (T x m) : 22.80 T x m
Effective moving mass (Mms) : 106.0 g
Equivalent Cas air loaded (Vas) : 114.0 liters
Effective piston area (Sd) : 0.090 m2
Max. linear excursion (Xmax) : 7 mm
Voice coil inductance @ 1kHz (Le1k) : 0.90 mH
Half-space efficency (Eff) : 3.20%
Mounting information
Overall diameter : 393 mm / 15.47 inches
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
Rear mount baffle cut-out : 354 mm / 13.94 inch
Volume occupied by the driver : 4.5 liters / 0.18 ft3
Standard compliance
Safety agency : CE compliant
Size / Weight
Height : 167 mm / 6.57 inches
Diameter : 393 mm / 15.47 inches
Weight : 8.2 kg / 18.08 lbs
Shipping information
Package Height : 209 mm / 8.23 inches
Package Width : 439 mm / 17.28 inches
Package Depth : 434 mm / 17.09 inches
Package Weight : 9.5 kg / 20.94 lbs