JL Audio 8W1v2-4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 34.6Hz
• Mechanical quality factor QMS 6.26
• Electrical quality factor QES 0.51
• Total quality factor QTS 0.47

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 169cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 4.0Ω
• Inductance (1kHz, estimated) LE 1.52mH

Magnet

• Force factor Bl 11N/A
• Motor constant Bl/√RE 5.5N/√W
• Diameter 115mm

Diaphragm

• Effective diameter 164mm
• Effective area SD 211cm²
• Moving mass MMS 71.2g
• Moving mass (without air load) MMD 68.9g

Suspensions

• Stiffness KMS 3.36N/mm
• Compliance CMS 298µm/N
• Equivalent volume to the compliance VAS 18.8L
• Mechanical resistance RMS 2.47N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 217mm
• Baffle cutout diameter 180mm
• Mounting depth 98mm
• Volume occupied by the driver 0.57L
• Net weight 2.9kg