MB12N405
MID - BASS
  • 4-inch, fibreglass inside/outside aluminium voice coil
  • 2000W continuous program power handling
  • 98.5 dB Sensitivity
  • 50 Hz – 2 kHz Frequency range
  • 4-inch, fibreglass inside/outside aluminium voice coil
  • 2000W continuous program power handling
  • 98.5 dB Sensitivity
  • 50 Hz – 2 kHz Frequency range
  • Dual-forced air ventilation for minimum power compression
  • Triple roll surround and exponential cone geometry
The MB12N405 is a hypervented neo mid-bass design with a linear frequency response and very high efficiency.
To get this performance the magnetic structure use a high flux neo disc and the cone assembly a fibre loaded exponential shape along with a high excursion triple roll, constant geometry surround. The fibreglass former and aluminium voice coil provide a very high power handling maintaining a light mass and a proper Q factor for bass alignment.

Part Number:

  • 11100112
    MB12N405
    8ohm
Specifications
General specifications
Cone Design:
Curved
Effective piston diameter:
260 mm / 10.24 inch
Frequency range:
50 - 2000 Hz
Hypervented magnetic structure:
Yes
Kind of layers:
inside/outside
Magnets:
Neodymium
Max. Excursion Before Damage:
53 mm / 2.09 inch
Minimim Impedance:
6 ohm
Nominal Diameter:
12 inch / 305 mm
Number of layers:
2
Power handling capacity:
1000 W
Program Power:
2000 W
Rated Impedance:
8 ohm
Sensitivity:
98 dB
Spider:
Single
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 Winding Material:
Aluminium
Voice Coil Length:
20 mm / 0.79 inch
Mounting Information
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
Overall diameter:
320 mm / 12.6 inches
Rear mount baffle cut-out:
284 mm / 11.18 inch
Volume occupied by the driver:
2.9 liters / 0.11 ft3
Shipping informations
Package Depth:
364 mm / 14.33 inches
Package Height:
194 mm / 7.64 inches
Package Weight:
8.7 kg / 19.18 lbs
Package Width:
354 mm / 13.94 inches
Size
Diameter:
320 mm / 12.6 inches
Height:
133 mm / 5.24 inches
Weight:
7.7 kg / 16.98 lbs
Standard compliance
CE marking:
Yes
Thiele - small parameters
BL factor (BL):
23.50 T x m
DC resistance (Re):
5.00 ohm
Effective moving mass (Mms):
73 gr
Effettive piston area (Sd):
0.05 m2
Electrical factor (Qes):
0.21 Qes
Equivalent Cas air loaded (Vas):
53 liters
Half-space efficency (Eff):
3.31%
Max. linear excursion (Xmax):
7 mm
Mechanical factor:
6.00 Qms
Resonance frequency (Fs):
52 Hz
Total factor:
0.20 Qts
Voice coil inductance @ 1kHz (Le1k):
1.20 mH
.