PRV Audio 8MR450A

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95dB
• Frequency response 80 - 9500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 65.3Hz
• Mechanical quality factor QMS 15.19
• Electrical quality factor QES 0.57
• Total quality factor QTS 0.55

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 96cm³
• Power handling P 225W
• Program power Pmax 450W
• Peak power Ppeak 900W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 0.257mH
• VC Diameter 38mm
• Winding height HVC 11mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 7.58N/A
• Motor constant Bl/√RE 3.15N/√W
• Air gap height HAG 6mm

Diaphragm

• Effective diameter 175mm
• Effective area SD 241cm²
• Moving mass MMS 13.8g
• Moving mass (without air load) MMD 11.1g

Suspensions

• Stiffness KMS 2.32N/mm
• Compliance CMS 432µm/N
• Equivalent volume to the compliance VAS 34.9L
• Mechanical resistance RMS 0.37N·s/m

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 209mm
• Baffle cutout diameter 185mm
• Overall depth 89mm
• Flange thickness 7mm
• Mounting depth 82mm
• Volume occupied by the driver (estimated) 0.77L
• Net weight 2.1kg
• Frame material Stamped Steel