- 3.0-inch, fibreglass inside/outside copper voice coil
- 1000 Watt continuous program power handling
- 98.5dB Sensitivity
- 50Hz â3.0KHz Frequency range
- Dual-forced air ventilation for minimum power compression
- M-roll surround and exponential cone geometry
The MB12N301 is a neodymium, high efficiency, 12” mid-bass. High sensitivity, excellent linearity and very high power handling capabilities. The magnetic structure is powered by a large neodymium magnet that provides an extremely high flux density in the gap. The new hyper-vented aluminium basket and magnetic assembly design provide an excellent heat dissipation and lower power compression. Special air-forced ventilations are provided for voice coil, magnet assembly and basket. M-roll surround and spider design offer great linearity and precise reproduction.
- General specifications
- Nominal Diameter: 12 inch / 305 mm
- Rated Impedance: 8 ohm
- Program Power: 1000 W
- Power handling capacity: 500 W
- Sensitivity: 98.5 dB
- Frequency range: 50 – 3000 Hz
- Effective piston diameter: 260 mm / 10.24 inch
- Max. Excursion Before Damage: 34 mm / 1.34 inch
- Minimim Impedance: 6.7 ohm
- Voice Coil Diameter: 3.0 inch / 76 mm
- Voice Coil Winding Material: Aluminium
- Voice Coil Length: 17 mm / 0.67 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: Neodymium
- Dual-force air ventilation: Yes
- Spider: Single
- Thiele – small parameters
- Resonance frequency (Fs): 54 Hz
- DC resistance (Re): 5.80 ohm
- Mechanical factor: 3.10 Qms
- Electrical factor (Qes): 0.26 Qes
- Total factor: 0.24 Qts
- BL factor (BL): 19.00 T x m
- Effective moving mass (Mms): 48.0 g
- Equivalent Cas air loaded (Vas): 71.0 liters
- Effettive piston area (Sd): 0.050 m2
- Max. linear excursion (Xmax): 6.0 mm
- Voice coil inductance @ 1kHz (Le1k): 1.80 mH
- Half-space efficency (Eff): 4.00%
- Mounting Information
- Overall diameter: 320 mm / 12.6 inches
- Bolt circle diameter: 295-304 mm / 11.61-11.97 inch
- Bolt hole diameter: 6 mm / 0.24 inch
- Front mount baffle cut-out: 288 mm / 11.34 inch
- Rear mount baffle cut-out: 288 mm / 11.34 inch
- Volume occupied by the driver: 2.2 liters / 0.09 ft3
- Standard compliance
- CE marking: Yes
- Size
- Weight: 3.4 kg / 7.5 lbs
- Height: 146 mm / 5.75 inches
- Diameter: 320 mm / 12.6 inches
- Shipping informations
- Package Width: 364 mm / 14.33 inches
- Package Weight: 4.2 kg / 9.26 lbs
- Package Height: 194 mm / 7.64 inches
- Package Depth: 354 mm / 13.94 inches
