The Boss Audio Phantom P156DVC has a peak power output rating of 2500 watts, and an RMS power output rating of 1250 watts. This Boss Audio car subwoofer features a frequency response range of 25-1000 Hz, thereby producing the lowest of sounds with clarity. This Boss Audio 15-inch subwoofer is powered by injection-molded polypropylene cones. Experience excellent beats and thumps with the Boss Audio Phantom P156DVC that boasts 2.5-inch, dual voice coils. This Boss Audio 15-inch subwoofer delivers exceptional low-frequency sound reproduction as well as explosive sound levels. This Boss Audio car subwoofer features 4 ohm impedance and 7.75-inches of mounting depth. All in all, the Boss Audio Phantom P156DVC makes for a wholesome listening experience. BOSS P156DVC 15" 2500 Watt Car Subwoofer 2500 Watt MAX 1500 Watt RMS 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-1kHz Mounting Depth: 7-1/8" Series: Phantom Type: Subwoofers Cone Material: Poly Injected Surround Material: Rubber Voice Coil: Dual Voice Coil Construction: 2.5" Voice Coil RMS Power: 1500W Frequency Response: 25Hz-1kHz