Top Quality 12 Inch 3000w 4 Ohm Big Powerful Subwoofer Speaker Steel Music Auto Bass Passive Boost Car Subwoofer Speakers - Speakers - AliExpress
10 inch JBL 3000w subwoofers in a ported box for Sale in Greenacres, FL - OfferUp
2) JBL Pro PRX825W Dual 15” 3000 Watt Powered Speakers+15" Active Subwoofer Sub | Audio Savings
JBL Stadium 600 High-Performance Class D 1500 Watts Peak Power Car Audio Mono Amplifier Bundle with JBL Club 1224 12" 1100W Max Power Car Audio Subwoofer (2 or 4 Ohms) and Amplifier