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

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 Winding Material

Aluminum

Voice Coil Length

14 mm / 0.55 inch

Number of layers

Kind of layers

outside

Top Plate Thickness

9 mm / 0.35 inch

Cone Design

Curved

Surround Material

Polycotton

Surround Design

M-roll

Magnets

Neodymium

Dual-force air ventilation

Yes

Spider

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 / Weight

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

SPECIFICATIONS

SPECSHEET - ENG

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19-08-2024

ACOUSTIC MEASUREMENTS

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11-07-2024

DRAWINGS

LINE ART 2D

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21-03-2018

LINE ART 3D

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22-01-2024

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