PRV Audio 6MB550FT-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.4dB
• Frequency response 85 - 7500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 86.3Hz
• Mechanical quality factor QMS 6.65
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 5.4mm
• Air volume displaced at xmax VD 77cm³
• Power handling P 275W
• Program power Pmax 550W
• Peak power Ppeak 1100W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 0.3mH
• VC Diameter 51mm
• Winding height HVC 14.8mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 8.63N/A
• Motor constant Bl/√RE 4.75N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 135mm
• Effective area SD 143cm²
• Moving mass MMS 14.8g
• Moving mass (without air load) MMD 13.5g

Suspensions

• Stiffness KMS 4.35N/mm
• Compliance CMS 230µm/N
• Equivalent volume to the compliance VAS 6.59L
• Mechanical resistance RMS 1.2N·s/m

Dimensions

• Nominal diameter 6″
• 152mm
• Overall diameter 165mm
• Baffle cutout diameter 142mm
• Overall depth 93mm
• Flange thickness 8mm
• Mounting depth 85mm
• Volume occupied by the driver (estimated) 0.8L
• Net weight 2.7kg
• Frame material Die cast Aluminium