PAIR BOSS P126DVC 12" 4600 Watt Car Subwoofers 2300 Watt MAX (4600 Watt PAIR) 1150 Watt RMS (2300 Watt PAIR) DUAL 4 Ohm Voice Coils Poly Injected Cone Competition Style Binding Posts Impedance: 4 Ohm 2.5" Voice Coil Efficiency: 96 dB Frequency Response: 25Hz-2kHz Mounting Depth: 6-3/4" Series: Phantom Type: Subwoofers Cone Material: Poly Injected Cone Surround Material: Rubber Voice Coil: Dual Voice Coil Construction: 2.5" Voice Coil Frequency Response: 25Hz-2kHz Sensitivity: 96 dB