8" Amplified, Loaded Subwoofer Tube 240 Watts max. power, 120 Watts RMS. 8 Gauge Amp Wiring Kit is included. Vented, Carpeted Enclosure H 9.84" x W 9.84" x L 21.25". High Level and RCA Inputs enable setup with any system. External Bass Control is included for convenient control of volume from front of vehicle