Pioneer TS-W306R 12-inch Car Subwoofer (Black)

150 watts Max power (50 watts nominal)
Hvt stands for horizontal vertical transforming technology which transforms horizontal movement into vertical movement of a woofer diaphragm to produce true, powerful and wide-range bass.
Significantly reduced physical depth, while maintaining greater excursion and linearity for superior bass reproduction, natural sound quality and higher output.
Subwoofer will fit easily in a wide range of vehicle applications (Compact and subcompact vehicles, hybrid vehicles, trucks and SUVs, etc.)
Impedance 4 ohms/ frequency response 20 Hz to 200 Hz

330W high power output
600W at 4 ohms), 1100W x 1 at 2 ohms
Active thermal control for stable playback
Dynamic distortion suppressor for clear sound