PRV Audio 8MB450

4Ω
8Ω

Mid Bass

Nominal diameter8″ / 210 mm
Resonance70.8 Hz
Q factor1.66
Sensitivity91.9 dB
Linear excursion± 4.9 mm
Program Power450 W
Discontinued
PRV Audio 8MB450 Mid BassPRV Audio 8MB450 Mid BassPRV Audio 8MB450 Mid Bass
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 91.9dB
  • Frequency response 70 - 7000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 70.8Hz
  • Mechanical quality factor QMS 24.67
  • Electrical quality factor QES 1.78
  • Total quality factor QTS 1.66

Large signal parameters

  • Maximum linear excursion (one way) xmax 4.9mm
  • Air volume displaced at xmax VD 111cm³
  • Power handling P 225W
  • Program power Pmax 450W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.3Ω
  • Inductance (1kHz) LE 0.69mH
  • VC Diameter 50.8mm
  • Winding height HVC 12.5mm
  • Winding material Copper Clad Aluminium
  • Former material Kapton

Magnet

  • Force factor Bl 5.56N/A
  • Motor constant Bl/√RE 2.22N/√W
  • Air gap height HAG 5.5mm
  • Material Ferrite

Diaphragm

  • Effective diameter 170mm
  • Effective area SD 227cm²
  • Moving mass MMS 19.7g
  • Moving mass (without air load) MMD 17.2g

Suspensions

  • Stiffness KMS 3.91N/mm
  • Compliance CMS 256µm/N
  • Equivalent volume to the compliance VAS 18.4L
  • Mechanical resistance RMS 0.36N·s/m

Dimensions

  • Nominal diameter 8″
  • 210mm
  • Overall diameter 210mm
  • Baffle cutout diameter 182mm
  • Overall depth 117mm
  • Flange thickness 32mm
  • Mounting depth 85mm
  • Volume occupied by the driver (estimated) 0.59L
  • Net weight 1.06kg
  • Frame material Stamped Steel
SPL
PRV Audio 8MB450 SPL
PRV Audio 8MB450 Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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