PRV Audio 8MB450

• 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 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