PRV Audio 8MR400

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.9dB
• Frequency response 90 - 7500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 78.2Hz
• Mechanical quality factor QMS 8.52
• Electrical quality factor QES 0.56
• Total quality factor QTS 0.52

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 89cm³
• Power handling P 200W
• Program power Pmax 400W
• Peak power Ppeak 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.42mH
• VC Diameter 38mm
• Winding height HVC 12mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 8.15N/A
• Motor constant Bl/√RE 3.51N/√W
• Air gap height HAG 6mm

Diaphragm

• Effective diameter 168mm
• Effective area SD 222cm²
• Moving mass MMS 14.1g
• Moving mass (without air load) MMD 11.6g

Suspensions

• Stiffness KMS 3.39N/mm
• Compliance CMS 295µm/N
• Equivalent volume to the compliance VAS 20.2L
• Mechanical resistance RMS 0.81N·s/m

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 210mm
• Baffle cutout diameter 177mm
• Overall depth 91mm
• Flange thickness 8mm
• Mounting depth 83mm
• Volume occupied by the driver (estimated) 0.81L
• Net weight 2.2kg
• Frame material Stamped Steel