12" Dual 4 ohm Punch Stage 3 Shallow Subwoofer Power Handling: 800 watts Peak 400 watts RMS Impedance: Dual 4 ohm Kevlar Fiber Semi-Pressed Paper Cone Compressed Sealed Poly-foam Surround ABS/Acrylic Dustcap Assembly Tear and fatigue resistant poly-cotton spider 2.5" Dual 4 ohm Voice Coil with spun-laced Nomex insulating collar Frequency response: 43-250 Hz Sensitivity: 86 dB