- 3.5-inch, fiberglass inside/outside copper voice coil
- 1400W continuous program power handling
- 98.5 dB Sensitivity
- 45 Hz â 2.5 kHz Frequency range
The MB12X351 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.
- General specifications
- Nominal Diameter: 12 inch / 305 mm
- Rated Impedance: 8 ohm
- Program Power: 1400 W
- Power handling capacity: 700 W
- Sensitivity: 98.5 dB
- Frequency range: 45 – 2500 Hz
- Effective piston diameter: 260 mm / 10.24 inch
- Max. Excursion Before Damage: 40 mm / 1.57 inch
- Minimim Impedance: 7.1 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: Dual with silicon based damping control
- Thiele – small parameters
- Resonance frequency (Fs): 55 Hz
- DC resistance (Re): 5.40 ohm
- Mechanical factor: 5.90 Qms
- Electrical factor (Qes): 0.27 Qes
- Total factor: 0.26 Qts
- BL factor (BL): 22.50 T x m
- Effective moving mass (Mms): 72.0 g
- Equivalent Cas air loaded (Vas): 46.0 liters
- Effettive piston area (Sd): 0.050 m2
- Max. linear excursion (Xmax): 7.0 mm
- Voice coil inductance @ 1kHz (Le1k): 0.90 mH
- Half-space efficency (Eff): 3.00%
- 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
- CE marking: Yes
- Size
- Weight: 7.6 kg / 16.76 lbs
- Height: 143 mm / 5.63 inches
- Diameter: 320 mm / 12.6 inches
- Shipping informations
- Package Width: 354 mm / 13.94 inches
- Package Weight: 8.4 kg / 18.52 lbs
- Package Height: 194 mm / 7.64 inches
- Package Depth: 364 mm / 14.33 inches
