ported under seat subwoofer box

MB Quart DS1-254 200 Watt 4 Ohm 10 Inch Shallow Space Saving Slim Subwoofer with 2 Inch Dual Voice Coil for Vehicle Audio Systems, Black

Alpine S2-A55V S-Series 5-Channel Amplifier & S2-SB8 8" S-Series Halo PrismaLink Preloaded Subwoofer Wedge Enclosure w/ RGB Lighting

Alpine SS-SB Shallow 12" Subwoofer and KTA-200M Amp Bundle with Bass Knob

Kicker Marine (2) 45KM84L 8" & 51MWLE104 10" Loaded Enclosure, LED Marine Audio Upgrade

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

PowerBass STA-8 - 8" Underseat Powered Enclosure

Alpine S-DB8V-TRK Dual 8” Halo S-Series Preloaded Truck Subwoofer Enclosure with ProLink™ w/ S2-A60M Amp Bundle & Rux Knob

QPower QBASS Dual 10 Inch Heavy Duty MDF Material Car Audio Subwoofer Enclosure Boxes with Shared Slot Port Vent and Dual Chamber Design, Charcoal

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

Alpine S-DB8V-TRK Dual 8” Halo S-Series Preloaded Truck Subwoofer Enclosure with ProLink™ w/ S2-A60M Amp Bundle

QPower Quad 4 Hole 12 Inch Sealed Divided Speaker Box Subwoofer Enclosure

JVC 10in Marine RGB Subwoofer + Waterproof Mono Amp Bundle

JBL BassPro Micro 8 8" Slim Powered Subwoofer

Alpine PWE-S8-MRN Compact 8-Inch Marine Powered Subwoofer Enclosure with IPX6 Waterproof Design

QPower 10 Inch Single Slim Shallow Subwoofer Box and Pyle 1000 Watt Subwoofer

Q Power Single 12" Triangle Ported Car Audio Subwoofer Box Enclosure (2 Pack)

Memphis 15-PRX10D4W PRX Series 10" Dual 4-ohm Subwoofer and a Sealed Box

Alpine S2-SB12 12" S-Series Halo PrismaLink Preloaded Subwoofer Wedge Enclosure with RGB Lighting

Memphis Audio 15-PRX1044 10" Power Reference Dual 4-Ohm Subwoofer and QPower CSS9000 Single 10" Sealed Car Audio Subwoofer Sub Box Enclosure

Alpine SS-SB Shallow 10" Subwoofer and KTA-200M Amp Bundle with Bass Knob

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with REVO 12 XS-W-SS GRILLE V3 - White & Stainless XS Style Grille and PORTED-12-ENC 12"...

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with REVO 12 XS-B-SS GRILLE V3 - Black & Stainless XS Style Grille and PORTED-12-ENC 12"...