JL Audio 12W0v3-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 28.4Hz
• Mechanical quality factor QMS 10.71
• Electrical quality factor QES 0.72
• Total quality factor QTS 0.67

Large signal parameters

• Maximum linear excursion xmax 11.4mm
• Air volume displaced at xmax VD 548cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 4.3Ω
• Inductance (1kHz, estimated) LE 2.59mH

Magnet

• Force factor Bl 12.4N/A
• Motor constant Bl/√RE 5.99N/√W
• Diameter 128mm

Diaphragm

• Effective diameter 247mm
• Effective area SD 481cm²
• Moving mass MMS 144g
• Moving mass (without air load) MMD 136g

Suspensions

• Stiffness KMS 4.59N/mm
• Compliance CMS 218µm/N
• Equivalent volume to the compliance VAS 71.6L
• Mechanical resistance RMS 2.4N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 318mm
• Baffle cutout diameter 281mm
• Mounting depth 137mm
• Volume occupied by the driver 1.36L
• Net weight 3.68kg