EUPHORIA 8" 550 WATT DUAL 4 OHM SUBWOOFER (ESW8D4)

8-inch dual 4-ohm voice coil design
Nominal power handling: 275 Watts
Peak power handling: 550 Watts
Optimized motor for low frequency response
High temperature voice coil wire around vented KSV former
Radial basket vents for voice coil cooling
Proprietary injection molded polypropylene cone
High excursion foam surround
Extended linear roll progressive dampener
Anti-resonance stamp-cast basket
Push button speaker wire terminals
D.C. voice coil resistance: 6.750Ω
Mechanical quality factor (Qms): 5.367
Electrical quality factor (Qes): 0.813
Total quality factor (Qts): 0.706
Equivalent air volume (Vas): 8.015m CuM
Mass of diaphragm/coil (Mms): 90.011 g
Moving mass of diaphragm (Mmd): 88.372 g
Force factor (BL): 14.521 TM
Sound pressure level (SPL): 81.377 dB
Free air resonance (Fo): 44.895 Hz
Effective diaphragm area (Sd): 20.106m
Compliance of mechanical suspension (Cms): 139.619u M/N
Overall diameter: 8.50 in / 215.9 mm
Mounting depth: 7.08 in / 179.92 mm
Cutout diameter: 4.25 in / 108 mm