PRV Audio 8MR600X-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.4dB
• Frequency response 85 - 8500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 77.2Hz
• Mechanical quality factor QMS 6.71
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 5.1mm
• Air volume displaced at xmax VD 123cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.31mH
• VC Diameter 51mm
• Winding height HVC 14.2mm
• Winding material Copper Clad Aluminium
• Former material Polyimide

Magnet

• Force factor Bl 8.93N/A
• Motor constant Bl/√RE 4.84N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 175mm
• Effective area SD 241cm²
• Moving mass MMS 17.5g
• Moving mass (without air load) MMD 14.8g

Suspensions

• Stiffness KMS 4.12N/mm
• Compliance CMS 243µm/N
• Equivalent volume to the compliance VAS 19.7L
• Mechanical resistance RMS 1.26N·s/m

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 209mm
• Baffle cutout diameter 185mm
• Overall depth 103mm
• Flange thickness 7mm
• Mounting depth 96mm
• Volume occupied by the driver (estimated) 1.1L
• Net weight 3.2kg
• Frame material Die cast Aluminium