PRV Audio 12MB1000FT-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.3dB
• Frequency response 70 - 3200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45.7Hz
• Mechanical quality factor QMS 8.55
• Electrical quality factor QES 0.28
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 6.1mm
• Air volume displaced at xmax VD 351cm³
• Power handling P 500W
• Program power Pmax 1000W
• Peak power Ppeak 2000W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz) LE 0.71mH
• VC Diameter 76mm
• Winding height HVC 17.5mm
• Winding material Aluminum
• Former material Glass Fiber

Magnet

• Force factor Bl 14.5N/A
• Motor constant Bl/√RE 7.76N/√W
• Air gap height HAG 10.5mm

Diaphragm

• Effective diameter 270mm
• Effective area SD 573cm²
• Moving mass MMS 58.2g
• Moving mass (without air load) MMD 48.7g

Suspensions

• Stiffness KMS 4.79N/mm
• Compliance CMS 209µm/N
• Equivalent volume to the compliance VAS 95.5L
• Mechanical resistance RMS 1.95N·s/m

Dimensions

• Nominal diameter 12″
• 310mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 147mm
• Flange thickness 15mm
• Mounting depth 132mm
• Volume occupied by the driver (estimated) 3.2L
• Net weight 7.62kg
• Frame material Die Cast Aluminium