![Amazon.com: Audiopipe TXX-BDC4-12D2 Subwoofer Quad Stack 12-inch 1100 Watts RMS 2200 Watt Max Impedance Dual 2 Ohm DVC Vehicle Car Audio Subwoofer Speaker System Voice Coil 3" BASV 4-Layer : Electronics Amazon.com: Audiopipe TXX-BDC4-12D2 Subwoofer Quad Stack 12-inch 1100 Watts RMS 2200 Watt Max Impedance Dual 2 Ohm DVC Vehicle Car Audio Subwoofer Speaker System Voice Coil 3" BASV 4-Layer : Electronics](https://m.media-amazon.com/images/I/71USevSJOBL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Audiopipe TXX-BDC4-12D2 Subwoofer Quad Stack 12-inch 1100 Watts RMS 2200 Watt Max Impedance Dual 2 Ohm DVC Vehicle Car Audio Subwoofer Speaker System Voice Coil 3" BASV 4-Layer : Electronics
![Kicker 48CWRT674 CompRT Series shallow-mount 6-3/4" subwoofer with dual 4-ohm voice coils at Crutchfield Kicker 48CWRT674 CompRT Series shallow-mount 6-3/4" subwoofer with dual 4-ohm voice coils at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2021/6/206/g20648CT674-F.jpg)
Kicker 48CWRT674 CompRT Series shallow-mount 6-3/4" subwoofer with dual 4-ohm voice coils at Crutchfield
![Ghxamp 4 Inch 40w Round Subwoofer Speaker Woofer High Power Bass Home Theater 2.1 Subwoofer Unit Crossover Louspeakers Diy 1pc - Speakers - AliExpress Ghxamp 4 Inch 40w Round Subwoofer Speaker Woofer High Power Bass Home Theater 2.1 Subwoofer Unit Crossover Louspeakers Diy 1pc - Speakers - AliExpress](https://ae01.alicdn.com/kf/HTB1pOPbSpXXXXcLXXXXq6xXFXXXQ/GHXAMP-4-inch-40W-Round-Subwoofer-Speaker-Woofer-High-power-BASS-Home-Theater-2-1-Subwoofer.jpg)