PRV Audio 69MR500CF-NDY-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.2dB
• Frequency response 100 - 13000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 91Hz
• Mechanical quality factor QMS 15.81
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 3.3mm
• Air volume displaced at xmax VD 70cm³
• Power handling P 250W
• Program power Pmax 500W
• Peak power Ppeak 1000W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.05mH
• VC Diameter 50.8mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 10.9N/A
• Motor constant Bl/√RE 5.92N/√W

Diaphragm

• Effective diameter 166mm
• Effective area SD 216cm²
• Moving mass MMS 22.3g
• Moving mass (without air load) MMD 20.5g

Suspensions

• Stiffness KMS 7.35N/mm
• Compliance CMS 136µm/N
• Equivalent volume to the compliance VAS 8.95L
• Mechanical resistance RMS 0.81N·s/m

Dimensions

• Nominal size 6 x 9″
• 152 x 228mm
• Overall size 164 x 236mm
• Mounting baffle cutout 149 x 219mm
• Overall depth 95mm
• Flange thickness 9mm
• Mounting depth 86mm
• Volume occupied by the driver (estimated) 0.61L
• Net weight 1.75kg
• Frame material Stamped Steel