PRECISION TRANSDUCERS

MB8N251

MID - BASS
  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 96 dB Sensitivity
  • 60 Hz - 3.5kHz Frequency range
Where to buy
Features Specifications Downloads
Where to buy
Features
  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 96 dB Sensitivity
  • 60 Hz - 3.5kHz Frequency range
  • Forced air ventilation
  • M-roll surround and exponential cone geometry

The MB8N251 is a 8” 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 M-roll surround shape combined to spider design offer good linear displacement and precise low frequency reproduction.

Part number:

11100061
MB8N251
8ohm

Specifications
General specifications
Nominal Diameter
8 inch / 203 mm
Rated Impedance
8 ohm
Program Power (watt)
600 W
Power handling capacity
300 W
Sensitivity
96.0 dB
Frequency range
60 - 3500 Hz
Effective piston diameter
165 mm / 6.5 inch
Max. Excursion Before Damage
40 mm / 1.57 inch
Minimum Impedance (ohm)
6.0 ohm
Voice Coil Diameter
2.5 inch / 63 mm
Voice Coil Length
14 mm / 0.55 inch
Number of layers
1
Kind of layers
outside
Top Plate Thickness
9 mm / 0.35 inch
Cone Design
Curved
Surround Design
M-roll
Dual-force air ventilation
Yes
Thiele - small parameters
Resonance frequency (Fs)
68 Hz
DC resistance (Re) (ohm)
5.10 ohm
Mechanical factor
4.60 Qms
Electrical factor
0.26 Qes
Total factor
0.25 Qts
Bl factor (Bl) (T x m)
15.20 T x m
Effective moving mass (Mms)
27.0 g
Equivalent Cas air loaded (Vas)
13.0 liters
Effective piston area (Sd)
0.020 m2
Max. linear excursion (Xmax)
5 mm
Voice coil inductance @ 1kHz (Le1k)
1.30 mH
Half-space efficency (Eff)
1.70%
Mounting information
Overall diameter
239 mm / 9.41 inches
Bolt circle diameter
221-227 mm / 8.7-8.94 inch
Bolt hole diameter
7 mm / 0.28 inch
Front mount baffle cut-out
185 mm / 7.28 inch
Rear mount baffle cut-out
185 mm / 7.28 inch
Volume occupied by the driver
0.6 liters / 0.02 ft3
Standard compliance
Safety agency
CE compliant
Size
Height
102 mm / 4.02 inches
Diameter
208 mm / 8.19 inches
Weight
2.01 kg / 4.43 lbs
Shipping information
Package Height
125 mm / 4.92 inches
Package Width
235 mm / 9.25 inches
Package Depth
220 mm / 8.66 inches
Package Weight
2.47 kg / 5.45 lbs
Downloads
SPECSHEETS
SPECSHEET - ENG
PDF
604 KB
22-01-2024
DRAWINGS
LINE ART 2D
PDF
415 KB
21-03-2018
LINE ART 3D
RAR
1 MB
22-01-2024