JL Audio 12W1v3-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86dB

Thiele & Small parameters

• Resonance frequency (free air) fS 26.2Hz
• Mechanical quality factor QMS 8.20
• Electrical quality factor QES 0.54
• Total quality factor QTS 0.50

Large signal parameters

• Maximum linear excursion xmax 11mm
• Air volume displaced at xmax VD 578cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.9Ω
• Inductance (1kHz, estimated) LE 2.84mH

Magnet

• Force factor Bl 15.1N/A
• Motor constant Bl/√RE 7.63N/√W
• Diameter 133mm

Diaphragm

• Effective diameter 259mm
• Effective area SD 525cm²
• Moving mass MMS 188g
• Moving mass (without air load) MMD 179g

Suspensions

• Stiffness KMS 5.1N/mm
• Compliance CMS 196µm/N
• Equivalent volume to the compliance VAS 76.6L
• Mechanical resistance RMS 3.78N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 318mm
• Baffle cutout diameter 281mm
• Mounting depth 137mm
• Volume occupied by the driver 1.47L
• Net weight 5.5kg