Skar Audio VS-12 D4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 4.68
• Electrical quality factor QES 0.95
• Total quality factor QTS 0.79

Large signal parameters

• Maximum linear excursion xmax 9.1mm
• Air volume displaced at xmax VD 483cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.4Ω
• Inductance (1kHz, in series, estimated) LE 4.77mH
• VC Diameter 61mm
• Winding material Copper

Magnet

• Force factor (in series) Bl 17.6N/A
• Motor constant Bl/√RE 6.94N/√W
• Diameter 171mm

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 196g
• Moving mass (without air load) MMD 187g
• Material Pressed Paper

Suspensions

• Stiffness KMS 10.8N/mm
• Compliance CMS 93µm/N
• Equivalent volume to the compliance VAS 37.1L
• Mechanical resistance RMS 9.75N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 12″
• 324mm
• Overall diameter 324mm
• Baffle cutout diameter 280mm
• Overall depth 133mm
• Flange thickness 20mm
• Mounting depth 113mm
• Volume occupied by the driver (estimated) 2.3L