Amazon.com: AudioPipe TXX-BDC4-8 8 Inch 1000 Watt High Performance Powerful 4 Ohm DVC Vehicle Car Sub Audio Subwoofer Speaker System, Black : Electronics
8 inch 4Ω (ohm) 600W Heavy Duty Heavy Power Audio Subwoofer Speaker
100w 8 Inch Subwoofer Speaker | Subwoofer Hifi 4 8 Ohm 100w - 1pcs 5.25 Inch - Aliexpress
MB Quart DS1-204 400 Watt 8 Inch Shallow Slim DVC 4 Ohm Car Sub, Single Speaker - Walmart.com
AudioPipe TXX-BDC4-8 1000 Watt Car Audio 4 Ohm Speaker DVC Subwoofer, Black - Walmart.com