Cerwin Vega XED12

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 27.4Hz
• Mechanical quality factor QMS 4.82
• Electrical quality factor QES 0.62
• Total quality factor QTS 0.55

Large signal parameters

• Maximum linear excursion xmax 17.8mm
• Air volume displaced at xmax VD 872cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 2Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz, estimated) LE 5.54mH

Magnet

• Force factor Bl 22.1N/A
• Motor constant Bl/√RE 9.79N/√W
• Diameter 144mm

Diaphragm

• Effective diameter 250mm
• Effective area SD 490cm²
• Moving mass MMS 346g
• Moving mass (without air load) MMD 338g

Suspensions

• Stiffness KMS 14.3N/mm
• Compliance CMS 70µm/N
• Equivalent volume to the compliance VAS 103L
• Mechanical resistance RMS 12.4N·s/m

Dimensions

• Nominal diameter 12″
• 317mm
• Overall diameter 317mm
• Baffle cutout diameter 275mm
• Mounting depth 133mm
• Volume occupied by the driver (estimated) 2.7L