JL Audio ZR800-CW

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.8dB

Thiele & Small parameters

• Resonance frequency (free air) fS 46.3Hz
• Mechanical quality factor QMS 11.67
• Electrical quality factor QES 0.70
• Total quality factor QTS 0.66

Large signal parameters

• Maximum linear excursion xmax 9mm
• Air volume displaced at xmax VD 194cm³
• Power handling P 125W
• Program power Pmax 250W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.9Ω
• Inductance (1kHz, estimated) LE 0.93mH

Magnet

• Force factor Bl 7.5N/A
• Motor constant Bl/√RE 3.78N/√W
• Diameter 115mm

Diaphragm

• Effective diameter 165mm
• Effective area SD 215cm²
• Moving mass MMS 34.8g
• Moving mass (without air load) MMD 32.5g

Suspensions

• Stiffness KMS 2.94N/mm
• Compliance CMS 340µm/N
• Equivalent volume to the compliance VAS 22.3L
• Mechanical resistance RMS 0.87N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 209mm
• Baffle cutout diameter 181mm
• Overall depth 116mm
• Flange thickness 30mm
• Mounting depth 86mm
• Volume occupied by the driver 0.44L
• Net weight 2.6kg