Features 2″ High-temperature voice coil 120 oz. ceramic ferrite magnet High-grade Low Carbon steel on top and bottom plate Designed to optimize SPL performance High excursion spider designed 1.5″ high roll foam surround Large gauge push button speaker terminals Dual 4 ohm voice coils Specifications Structure 8” (203.3 mm) Max Power 500 Watts Nominal Power 250 Watts Impedance 2" (50.8mm) Dual 4 Ω Voice Coil PARAMETERS Resonant Frequency (fs) 36.564 Hz D.C. Voice Coil Resistance (Re) 6.9 Ω Mechani