Amazon.com: Skar Audio EVL-1X65D4-V-LP 6.5" 400 Watt Low Profile Slot Port Loaded Car Subwoofer Enclosure : Electronics
Amazon.com: Skar Audio EVL-65 D4 6.5" 400 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: Rockville Rock Shaker 10" Inch White 400w Powered Home Theater Subwoofer Sub : Electronics
Amazon.com: PyleUsa Car Midbass Speaker System - Pro 8 Inch 400 Watt 4 Ohm Auto Mid-Bass Component Poly Woofer Audio Sound Speakers for Car Stereo w/ 40 Oz Magnet, 50Hz-5KHz Frequency, 3.58”
Amazon.com: Pyle PLMRW8 8-Inch Outdoor Marine Audio Subwoofer - 400 Watt Single White Waterproof Bass Loud Speaker For Marine Stereo Sound System, Under Helm or Box Case Mount in Small Boat, Water
Amazon.com: Massive Audio SUMMO64S - 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 200 Watt RMS, 400w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Klipsch R-12SW Powerful Deep Bass Front Firing 12" Copper-Spun Driver 400W Digital Power Subwoofer 14" X 18.5" X 16" : Electronics
Amazon.com: SOUND TOWN 18" RAW WOOFER SPEAKER, 400 WATTS PRO AUDIO PA DJ REPLACEMENT SUBWOOFER LOW FREQUENCY DRIVER (STLF-1890) : Musical Instruments
Amazon.com: Polk Audio HTS 12 Powered Subwoofer with Power Port Technology | 12” Woofer, up to 400W Amp | For the Ultimate Home Theater Experience | Modern Sub that Fits in any
Amazon.com: pkg SOLID1 - Focal Monoblock 470 W RMS Power Amplifier + Pair of SUB P25 - Focal 10" 200W RMS 400W Max Single 4-Ohm Subwoofer : Electronics
Amazon.com: MTX TNP212D2 12-Inch 400-Watt RMS Dual Loaded 1200-Watt Car Subwoofer Enclosure Audio with Sub Box, Mono Block Amplifier, and 8 Gauge Amplifier Amp Complete Wiring Installation Kit : Electronics