JL Audio 12WXv2-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 27.4Hz
• Mechanical quality factor QMS 9.97
• Electrical quality factor QES 0.60
• Total quality factor QTS 0.56

Large signal parameters

• Maximum linear excursion xmax 10mm
• Air volume displaced at xmax VD 496cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz, estimated) LE 1.93mH

Magnet

• Force factor Bl 11.2N/A
• Motor constant Bl/√RE 5.98N/√W
• Diameter 105mm

Diaphragm

• Effective diameter 251mm
• Effective area SD 496cm²
• Moving mass MMS 124g
• Moving mass (without air load) MMD 116g

Suspensions

• Stiffness KMS 3.69N/mm
• Compliance CMS 271µm/N
• Equivalent volume to the compliance VAS 94.5L
• Mechanical resistance RMS 2.15N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 318mm
• Baffle cutout diameter 281mm
• Mounting depth 135mm
• Volume occupied by the driver 1.36L
• Net weight 2.63kg