Overview3.5-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 Specifications
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.
Features General specifications
Nominal Diameter : 12 inch / 305 mm
Rated Impedance : 8 ohm
Program Power (watt) : 1300 W
Power handling capacity : 650 W
Sensitivity : 99.0 dB
Frequency range : 45 - 3000 Hz
Effective piston diameter : 260 mm / 10.24 inch
Max. Excursion Before Damage : 39 mm / 1.54 inch
Minimum Impedance (ohm) : 7.0 ohm
Voice Coil Diameter : 3.5 inch / 89 mm
Voice Coil Winding Material : Copper
Voice Coil Length : 17 mm / 0.67 inch
Number of layers : 2
Kind of layers : inside/outside
Top Plate Thickness : 11 mm / 0.43 inch
Cone Design : Curved
Surround Material : Polycotton
Surround Design : M-roll
Magnets : Neodymium
Dual-force air ventilation : Yes
Spider : 02
Thiele - small parameters
Resonance frequency (Fs) : 55 Hz
DC resistance (Re) (ohm) : 5.60 ohm
Mechanical factor : 4.50 Qms
Electrical factor : 0.21 Qes
Total factor : 0.20 Qts
Bl factor (Bl) (T x m) : 22.50 T x m
Effective moving mass (Mms) : 54.0 g
Equivalent Cas air loaded (Vas) : 61.0 liters
Effective piston area (Sd) : 0.050 m2
Max. linear excursion (Xmax) : 6 mm
Voice coil inductance @ 1kHz (Le1k) : 1.65 mH
Half-space efficency (Eff) : 4.66%
Mounting information
Overall diameter : 320 mm / 12.6 inches
Bolt circle diameter : 293-304 mm / 11.54-11.97 inch
Bolt hole diameter : 7 mm / 0.28 inch
Front mount baffle cut-out : 282 mm / 11.1 inch
Rear mount baffle cut-out : 284 mm / 11.18 inch
Volume occupied by the driver : 2.2 liters / 0.09 ft3
Standard compliance
Safety agency : CE compliant
Size / Weight
Height : 151 mm / 5.94 inches
Diameter : 320 mm / 12.6 inches
Weight : 4.5 kg / 9.92 lbs
Shipping information
Package Height : 210 mm / 8.27 inches
Package Width : 360 mm / 14.17 inches
Package Depth : 360 mm / 14.17 inches
Package Weight : 5.49 kg / 12.1 lbs
