PRV Audio 6MR500-NDY-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.2dB
• Frequency response 90 - 13000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 99.8Hz
• Mechanical quality factor QMS 23.10
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 4.4mm
• Air volume displaced at xmax VD 63cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.8Ω
• Inductance (1kHz) LE 0.05mH
• VC Diameter 50mm
• Winding height HVC 11.2mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 8.77N/A
• Motor constant Bl/√RE 4.5N/√W
• Air gap height HAG 5.5mm

Diaphragm

• Effective diameter 135mm
• Effective area SD 143cm²
• Moving mass MMS 14.1g
• Moving mass (without air load) MMD 12.9g

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 5.14L
• Mechanical resistance RMS 0.38N·s/m

Dimensions

• Nominal diameter 6″
• 152mm
• Overall diameter 165mm
• Baffle cutout diameter 142mm
• Overall depth 82mm
• Flange thickness 8mm
• Mounting depth 74mm
• Volume occupied by the driver (estimated) 0.51L
• Net weight 1.51kg
• Frame material Die Cast Aluminium