Bazooka BT6014 BT Series 6-Inch 4 Ohm 100-Watt Passive Tube Subwoofer Ported Cylindrical Enclosure With 6-1/2" Subwoofer includes Mounting Straps And Woofer 4-Ohm Impedance5-Way Binding Post Wire Terminals power Handling: 6-100 Watts Rms Frequency Response: 39-1,500 Hz sensitivity: 100 Db6-7/8"W X 8-1/4"H X 18-3/8"D Passive Bass Tubes enclosure with six-inch subwoofer Corner-loading optimization provides maximum bass performance 100 watts maximum power handling with four-ohm impedance High-efficiency woofer designed and reinforced for use in Bass Tubes Includes straps for secure mounting