JL Audio 8W7-3

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.8dB

Thiele & Small parameters

• Resonance frequency (free air) fS 35.2Hz
• Mechanical quality factor QMS 9.50
• Electrical quality factor QES 0.65
• Total quality factor QTS 0.61

Large signal parameters

• Maximum linear excursion xmax 19mm
• Air volume displaced at xmax VD 466cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 3Ω
• DC resistance RE 2.8Ω
• Inductance (1kHz, estimated) LE 1.32mH

Magnet

• Force factor Bl 9.7N/A
• Motor constant Bl/√RE 5.82N/√W
• Diameter 147mm

Diaphragm

• Effective diameter 177mm
• Effective area SD 245cm²
• Moving mass MMS 100g
• Moving mass (without air load) MMD 97.4g

Suspensions

• Stiffness KMS 4.9N/mm
• Compliance CMS 204µm/N
• Equivalent volume to the compliance VAS 17.4L
• Mechanical resistance RMS 2.33N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 216mm
• Baffle cutout diameter 176mm
• Mounting depth 173mm
• Volume occupied by the driver 1.7L
• Net weight 7.8kg