PRV Audio 8MB500v2-NDY

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.6dB
• Frequency response 75 - 7500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 71.4Hz
• Mechanical quality factor QMS 5.76
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 4.8mm
• Air volume displaced at xmax VD 112cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.9Ω
• Inductance (1kHz) LE 0.44mH
• VC Diameter 50.8mm
• Winding height HVC 12mm
• Winding material Copper
• Former material Kapton

Magnet

• Force factor Bl 11.6N/A
• Motor constant Bl/√RE 4.78N/√W
• Air gap height HAG 5mm
• Material Neodymium

Diaphragm

• Effective diameter 173mm
• Effective area SD 235cm²
• Moving mass MMS 23.7g
• Moving mass (without air load) MMD 21.1g

Suspensions

• Stiffness KMS 4.79N/mm
• Compliance CMS 209µm/N
• Equivalent volume to the compliance VAS 16.1L
• Mechanical resistance RMS 1.85N·s/m

Dimensions

• Nominal diameter 8″
• 209mm
• Overall diameter 209mm
• Baffle cutout diameter 179mm
• Overall depth 90mm
• Flange thickness 6mm
• Mounting depth 84mm
• Volume occupied by the driver (estimated) 0.5L
• Net weight 1.07kg
• Frame material Stamped Steel