Skar Audio VD-12 D2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.8dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35.3Hz
• Mechanical quality factor QMS 4.42
• Electrical quality factor QES 0.62
• Total quality factor QTS 0.55

Large signal parameters

• Maximum linear excursion xmax 11mm
• Air volume displaced at xmax VD 556cm³
• Power handling P 500W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 4.0Ω
• Inductance (1kHz, in series, estimated) LE 2.7mH
• VC Diameter 50.8mm
• Winding material Copper

Magnet

• Force factor (in series) Bl 15.6N/A
• Motor constant Bl/√RE 7.8N/√W
• Diameter 152mm

Diaphragm

• Effective diameter 254mm
• Effective area SD 506cm²
• Moving mass MMS 169g
• Moving mass (without air load) MMD 161g
• Material Pressed Paper

Suspensions

• Stiffness KMS 8.33N/mm
• Compliance CMS 120µm/N
• Equivalent volume to the compliance VAS 43.5L
• Mechanical resistance RMS 8.5N·s/m
• Surround material Foam

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 320mm
• Baffle cutout diameter 287mm
• Overall depth 151mm
• Flange thickness 25mm
• Mounting depth 126mm
• Volume occupied by the driver (estimated) 2.7L