ported under seat subwoofer box

Alpine S2-DB8V-TRK Dual 8” Alpine Halo S-Series Preloaded Truck Subwoofer Enclosure with ProLink™

Alpine R2-DB8V-TRK Dual 8” Halo R-Series Preloaded Truck Subwoofer Enclosure with ProLink™ w/ R2-A75M Bundle

Kicker 53PL7TDF12 12" L7TDF Powered Down-Firing Subwoofer Enclosure with Amplifier Install Kit & KISL Integration – Thin Profile Loaded Truck Bass ...

Wet Sounds REVO 12 HP S4 V3 - 12" High Power 4 Ohm Subwoofer with REVO 12 XW-W GRILLE V3 - White XW Style Closed Grille and PORTED-12-ENC 12" Rotom...

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofe with REVO 12 XS-S GRILLE V3 - Silver XS Style Grille and PORTED-12-ENC 12" Rotomold Porte...

Wet Sounds REVO 12 HP S4 12" High Power 4 Ohm Subwoofer with REVO 12 SW-W GRILLE V3 - White Salt Water Grille and PORTED-12-ENC 12" Rotomold Ported...

Wet Sounds REVO 12 HP S4 V3 - 12" High Power 4 Ohm Subwoofer with REVO 12 ADP XZ-B Grille Kit and PORTED-12-ENC 12" Rotomold Ported Enclosure

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with REVO 12 XW-B GRILLE V3 - Black XW Style Closed Grille and PORTED-12-ENC 12" Rotomol...

Alpine iLX-W670-S Receiver & S2-SB8 PrismaLink™ S2-Series 8" subwoofer Built-In RGB lighting & S2-A55V 5 Channel Amp Bundle

Alpine PWV-SB12 12" BassRev™ Powered Subwoofer Enclosure & Rux Subwoofer Control

Alpine PWV-SB12 12" BassRev™ Powered Subwoofer Enclosure

Kicker 45KM84L 8" RGB LED Marine Speakers with SSV US2-C8 Universal 8-inch Cage Mount Speaker Pods Including Dual Clamps

Alpine R-SB12V 12" Subwoofer Enclosure with R-A75M 750W Amp

Elac Debut 3.0 Walnut 5.25 Inch Book Shelves With Elac Varro 10In Subwoofer

Alpine S-DB8V-TRK Dual 8” Alpine Halo S-Series Preloaded Truck Subwoofer Enclosure

PowerBass PS-AWB121T - 12" Single Loaded Amplified Truck Box

QPower QBomb QBOMB10HP Dual 10" Vented Port Subwoofer Box w/ Bedliner Spray

QPower 15 Inch Heavy-Duty Single Vented Carpet Covered Durable Car Audio Vehicle Subwoofer Enclosure Woofer Box, Charcoal Gray

Alpine SWT-10S4 10" Subwoofer Bundle

Alpine SWT-10S2 10" Subwoofer Bundle

VEVOR 10" 440W Underseat Car Subwoofer, Slim Powered Car Subwoofers with Blue Ambient Light, Low Profile Audio Sub Under the Seat, Black

Wet Sounds REVO 12 FA S4 V3 - REVO Series 12" Free Air 4 Ohm V3 Subwoofer, Black and Wet Sounds REVO 12 XS-W-SS GRILLE V3 - White & Stainless XS St...

Wet Sounds REVO 12 FA S4 V3 - REVO Series 12" Free Air 4 Ohm V3 Subwoofer, Black and Wet Sounds REVO 12 SW-W GRILLE V3 - White Salt Water Grille fo...

Kicker Marine 10" Free Air Subwoofer Package – 45KMF102 with White Grille (45KMG10W) + 48PXA3001 Mono Amplifier – DIY Boat Bass Upgrade