Amazon.com: Polk MM842-SVC MM1 Series 8 Inch 900 Watt Max 300 Watts RMS Full Range 4 Ohm Single Voice Coil Car Audio Marine Subwoofer, Black : Electronics
Amazon.com: TORO TECH SLIM10, 10 Inch Hideaway Powered Under-Seat Car Subwoofer, Active Low Profile 10" Subwoofer, 300 Watt RMS Built in Amplifier, Gain Control and Bass Level Controller Included : Everything Else
Amazon.com: Massive Audio SUMMO64XL - 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 150 Watt RMS, 300w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Rockford Fosgate P300-8P Punch 8" 300-Watt Amplified Subwoofer in Ported Enclosure - Slim Design for Tight Spaces - Black : Electronics
Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64,Yellow : Electronics
Amazon.com: KICKER 43C124 Comp 12" 300 Watt SVC 4-Ohm Car Subwoofer Sub +Amplifier+Amp Kit : Electronics
Amazon.com: Rockville RVB10.1A 10 Inch 500W Active Powered Car Subwoofer+Sub Enclosure Box : Electronics
Amazon.com: Pyle Portable Bluetooth PA Speaker System - 300W Rechargeable Indoor/Outdoor Bluetooth Speaker Portable PA System w/ 8” Subwoofer, AUX, Microphone in, Party Lights, MP3/USB, Radio, Remote PPHP854B : Musical Instruments