MB12N251
MID - BASS
  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 98 dB Sensitivity
  • 45 Hz - 3.0 kHz Frequency range
  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 98 dB Sensitivity
  • 45 Hz - 3.0 kHz Frequency range
  • Forced air ventilation
  • M-roll surround and exponential cone geometry
The MB12N251 is a 12” neodymium mid-bass driver with an excellent linearity, good efficiency and high power handling capabilities. The 2,5” aluminium voice coil combined with a high strength fibreglass former allows high efficiency and good frequency response extension. Aluminium basket and magnetic assembly design provide an excellent heat dissipation and very low power compression.
The Triple-roll shape combined to spider design offer very low distortion and extended low frequency reproduction.

Part Number:

  • 11100065
    MB12N251
    8ohm
Specifications
General specifications
Cone Design:
Curved
Dual-force air ventilation:
Yes
Effective piston diameter:
260 mm / 10.24 inch
Frequency range:
45 - 3000 Hz
Kind of layers:
outside
Magnets:
Neodymium
Max. Excursion Before Damage:
38 mm / 1.5 inch
Minimim Impedance:
6 ohm
Nominal Diameter:
12 inch / 305 mm
Number of layers:
1
Power handling capacity:
300 W
Program Power:
600 W
Rated Impedance:
8 ohm
Sensitivity:
98 dB
Spider:
Single
Surround Design:
Triple roll
Surround Material:
Polycotton
Top Plate Thickness:
9 mm / 0.35 inch
Voice Coil Diameter:
2.5 inch / 63 mm
Voice Coil Winding Material:
Aluminium
Voice Coil Length:
14 mm / 0.55 inch
Mounting Information
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
Overall diameter:
320 mm / 12.6 inches
Rear mount baffle cut-out:
288 mm / 11.34 inch
Volume occupied by the driver:
2.2 liters / 0.09 ft3
Shipping informations
Package Depth:
354 mm / 13.94 inches
Package Height:
194 mm / 7.64 inches
Package Weight:
3.67 kg / 8.09 lbs
Package Width:
364 mm / 14.33 inches
Size
Diameter:
320 mm / 12.6 inches
Height:
143 mm / 5.63 inches
Weight:
2.58 kg / 5.69 lbs
Standard compliance
CE marking:
Yes
Thiele - small parameters
BL factor (BL):
15.00 T x m
DC resistance (Re):
5.10 ohm
Effective moving mass (Mms):
49 gr
Effettive piston area (Sd):
49.00 m2
Electrical factor (Qes):
0.36 Qes
Equivalent Cas air loaded (Vas):
83 liters
Half-space efficency (Eff):
2.70%
Max. linear excursion (Xmax):
5 mm
Mechanical factor:
5.40 Qms
Resonance frequency (Fs):
50 Hz
Total factor:
0.34 Qts
Voice coil inductance @ 1kHz (Le1k):
1.30 mH
.