PRV Audio 8FR250

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92dB
• Frequency response 50 - 18000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 75.6Hz
• Mechanical quality factor QMS 14.07
• Electrical quality factor QES 1.10
• Total quality factor QTS 1.02

Large signal parameters

• Maximum linear excursion xmax 3.5mm
• Air volume displaced at xmax VD 80cm³
• Power handling P 125W
• Program power Pmax 250W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.6Ω
• Inductance (1kHz) LE 0.275mH
• VC Diameter 38mm
• Winding height HVC 10mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 6.53N/A
• Motor constant Bl/√RE 2.54N/√W
• Air gap height HAG 6mm

Diaphragm

• Effective diameter 170mm
• Effective area SD 227cm²
• Moving mass MMS 15g
• Moving mass (without air load) MMD 12.5g

Suspensions

• Stiffness KMS 3.4N/mm
• Compliance CMS 294µm/N
• Equivalent volume to the compliance VAS 21.2L
• Mechanical resistance RMS 0.51N·s/m

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 209mm
• Baffle cutout diameter 181mm
• Overall depth 92mm
• Flange thickness 7mm
• Mounting depth 85mm
• Volume occupied by the driver (estimated) 0.66L
• Net weight 1.6kg
• Frame material Stamped Steel