18 inch subwoofer cabinets

Hertz HMS 12 S4-LD-SW - 12" 4-Ohm Marine Subwoofer with RGB LEDs, White Sport Grille

JBL Stage 82 8" High-Performance Car Subwoofer - Each

Diamond Audio DESMB10DA - Dual 10" Active Slot Vented Subwoofer Enclosure (2Ω)

ATG Transcend Series 2500 Watt Class D Mono Amplifier with (2) 12" 4 Ohm DVC Subwoofers and 0 Gauge Amp Kit

Alpine RS-W12D2 12-inch R-Series Shallow Subwoofer with Dual 2-Ohm Voice Coils

Hertz HMS 10 B4-LD-C - 10" 4-Ohm Marine Subwoofer with RGB LEDs, Black Classic Marine Grille

Alpine (2) RS-W12D4 12-inch R-Series Shallow Subwoofer Dual 4 Ohm & Grill Bundle

Kenwood XM1041BL eXcelon Motorsports 10" All-Weather Outdoor Subwoofer with Adjustable Lighting - Each (Black)

Alpine (2) RS-W12D2 12-inch R-Series Shallow Subwoofer Dual 2 Ohm & Grill Bundle

Hertz HMS 12 B4-LD-C - 12" 4-Ohm Marine Subwoofer with RGB LEDs, Black Grille

Audison AV-12-D4-II 300MM (12 INCH) 4 Ohm DVC Subwoofer

Hifonics 2 Pack ELITE 12 Inch Shallow Mount Car Subwoofer, Dual 4 Ohm Voice Coil Speaker 600 Watt Peak Power Mobile Amplifier, Black/Blue

ATG 500 Watt RMS Class D Compact Mono Amplifier with 12" 750 Watt RMS Subwoofer

PowerBass 3XL-1010D - 10" Dual 1 Ohm Subwoofer

Hertz HMS 10 S2-LD-SW - 10" 2-Ohm Marine Subwoofer with RGB LEDs, White Sport Grille

Alpine RS-W12D4 12-inch R-Series Shallow Subwoofer Dual 4 Ohm & Grill Bundle

Hertz HMS 12 B4-LD-W - 12" 4-Ohm Marine Subwoofer with RGB LEDs, White Grille

Memphis Audio MJP1044 10" Dual 4 Ohm Subwoofer

Cerwin Vega Marine Bass Upgrade Stroker Mono Amplifier with (2) 10" 4-Ohm Black Subwoofers and Install Kit

ATG Transcend Series 2500 Watt Class D Mono Amplifier with (2) 15" 4 Ohm DVC Subwoofers and 0 Gauge Amp Kit

Cerwin Vega Marine Bass Upgrade Stroker Mono Amplifier with (2) 10" 4-Ohm White Subwoofers and Install Kit

Hertz Venezia V1 Monoblock Subwoofer Marine Amplifier with 2 HMS 12 S4-LD-G - 12" 4-Ohm Marine Subwoofer with RGB LEDs, Gray Sport Grille

Alpine Status HDA-V90 Hi-Res 5-Channel Amplifier & RS-W10D4 10-inch R-Series Shallow Subwoofer with Dual 4-Ohm Bundle

Hertz HMS 10 B4-LD-W - 10" 4-Ohm Marine Subwoofer with RGB LEDs, Black Classic Marine Grille