RCF MID – BASS. MB8N251
138,04 Add to cart

RCF MID – BASS. MB8N251

138,04

Brand: RCF
Article number: MB8N251

  • 2.5-inch , fibreglass former, aluminum voice coil
  • 600 Watt continuous program power handling
  • 96 dB Sensitivity
  • 60 Hz – 3.5kHz Frequency range

Description

  • 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.

  • General specifications
    • Nominal Diameter: 8 inch / 203 mm
    • Rated Impedance: 8 ohm
    • Program Power: 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
    • Minimim Impedance: 6.0 ohm
    • Voice Coil Diameter: 2.5 inch / 63 mm
    • Voice Coil Winding Material: Aluminium
    • 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 Material: Polycotton
    • Surround Design: M-roll
    • Magnets: Neodymium
    • Dual-force air ventilation: Yes
    • Spider: Single

  • Thiele – small parameters
    • Resonance frequency (Fs): 68 Hz
    • DC resistance (Re): 5.10 ohm
    • Mechanical factor: 4.60 Qms
    • Electrical factor (Qes): 0.26 Qes
    • Total factor: 0.25 Qts
    • BL factor (BL): 15.20 T x m
    • Effective moving mass (Mms): 27.0 g
    • Equivalent Cas air loaded (Vas): 13.0 liters
    • Effettive piston area (Sd): 0.020 m2
    • Max. linear excursion (Xmax): 5.0 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
    • CE marking: Yes

  • Size
    • Weight: 2.01 kg / 4.43 lbs
    • Height: 102 mm / 4.02 inches
    • Diameter: 208 mm / 8.19 inches

  • Shipping informations
    • Package Width: 235 mm / 9.25 inches
    • Package Weight: 2.47 kg / 5.45 lbs
    • Package Height: 125 mm / 4.92 inches
    • Package Depth: 220 mm / 8.66 inches

Additional information

Weight 0102.47 kg
Dimensions 220 × 235 × 125 cm
Brand

Nominal Diameter

8 inch / 203 mm

Rated Impedance

8 ohm

Program Power

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

Minimim Impedance

Voice coil diameter

Voice Coil Winding Material

Voice Coil Length

Number of layers

Kind of layers

Top Plate Thickness

Cone Design

Surround Material

Surround Design

Magnets

Dual-force air ventilation

Spider

Resonance frequency (Fs)

DC resistance (Re)

Mechanical factor

Electrical factor (Qes)

Total factor

BL factor (BL)

Effective moving mass (Mms)

Equivalent Cas air loaded (Vas)

Effettive piston area (Sd)

Max. linear excursion (Xmax)

Half-space efficency (Eff)

Overall diameter

Bolt circle diameter

Bolt hole diameter

Front mount baffle cut-out

Rear mount baffle cut-out

Volume occupied by the driver

CE marking

Weight

Height

Diameter

Package Width

Package Weight

Package Height

Package Depth