PRV Audio 69MR500-PhP-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.6dB
• Frequency response 500 - 12000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 91.7Hz
• Mechanical quality factor QMS 14.20
• Electrical quality factor QES 0.68
• Total quality factor QTS 0.65

Large signal parameters

• Maximum linear excursion xmax 2.9mm
• Air volume displaced at xmax VD 66cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.7Ω
• Inductance (1kHz) LE 0.14mH
• VC Diameter 38mm
• Winding height HVC 8.5mm
• Winding material Copper
• Former material Kapton

Magnet

• Force factor Bl 6.8N/A
• Motor constant Bl/√RE 3.54N/√W
• Air gap height HAG 5.5mm

Diaphragm

• Effective diameter 171mm
• Effective area SD 231cm²
• Moving mass MMS 14.8g
• Moving mass (without air load) MMD 12.9g

Suspensions

• Stiffness KMS 4.9N/mm
• Compliance CMS 204µm/N
• Equivalent volume to the compliance VAS 15.2L
• Mechanical resistance RMS 0.6N·s/m

Dimensions

• Nominal size 6 x 9″
• 152 x 228mm
• Overall size 162 x 235mm
• Mounting baffle cutout 147 x 221mm
• Overall depth 98mm
• Flange thickness 8mm
• Mounting depth 90mm
• Volume occupied by the driver (estimated) 0.77L
• Net weight 2.45kg
• Frame material Die cast Aluminium