Skar Audio VXF-12 D4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 34.4Hz
• Mechanical quality factor QMS 4.46
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 25mm
• Air volume displaced at xmax VD 1179cm³
• Power handling P 1500W
• Program power Pmax 3000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.8Ω
• Inductance (1kHz, in series, estimated) LE 3.67mH
• VC Diameter 76.2mm
• Winding material Copper

Magnet

• Force factor (in series) Bl 33.8N/A
• Motor constant Bl/√RE 12.1N/√W
• Diameter 218mm

Diaphragm

• Effective diameter 245mm
• Effective area SD 471cm²
• Moving mass MMS 320g
• Moving mass (without air load) MMD 312g
• Material Pressed Paper

Suspensions

• Stiffness KMS 13.9N/mm
• Compliance CMS 72µm/N
• Equivalent volume to the compliance VAS 22.7L
• Mechanical resistance RMS 15.5N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 12″
• 318mm
• Overall diameter 318mm
• Baffle cutout diameter 280mm
• Overall depth 251mm
• Flange thickness 35mm
• Mounting depth 216mm
• Volume occupied by the driver (estimated) 5.3L