ported under seat subwoofer box

Alpine W10S4 10-inch Single 4 Ohm Subwoofer

Hertz DBA 201F 8" (200mm) Super-Flat Active Under-Seat Sub Box

Kicker Two 45KM104 10" Marine Subwoofers 4-Ohm Charcoal LED Grill with SSV Universal Marine Sub Box Enclosures

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...

Alpine S2-A55V S-Series 5-Channel Amplifier & S2-SB12V 12" Halo S-Series Preloaded Subwoofer Ported Enclosure

Kicker 12" Ported Comp Subwoofer Enclosure and Amp Bundle Includes Bass Knob ( 43VC124, 46CXA4001 )

Monoprice CSW-12: 12" 400-Watt Compact Subwoofer, High-Level Speaker Inputs, Crossover Setting, RCA Inputs

Wet Sounds REVO 12 HP S4 V3 12" High Power 4 Ohm Subwoofer with 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...

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...

MB Quart MBQJL-302 400W Jeep JL Tailgate Powered Subwoofer Box with Amp and Bass

Kicker 45VL7R102 Single 10" L7R Loaded Vented Enclosure - 500 Watts RMS

VEVOR Subwoofer Bass Package, 12 in, 245W RMS, Complete Car Audio Subwoofer and Amp Package, with Loaded Enclosure, Built-in Amplifier, Black

Wet Sounds WS-SUB 650 ES Marine, Golf Cart, UTV 6.5” Ported Subwoofer Enclosure (Loaded, Amplifier Required)

Kicker 45KM102 10" Marine Subwoofer 2-Ohm Charcoal LED Grill with SSV Universal Marine Sub Box Enclosure

Kicker 45KM102 10" Marine Subwoofer 2-Ohm White LED Grill with SSV Universal Marine Sub Box Enclosure

Alpine SS-SB12 Single 12” S-Series Shallow Preloaded Subwoofer Enclosure

Kicker 45TL7R102 Single 10" L7R Truck Loaded Vented Enclosure - 500 Watts RMS

2) MB Quart DS1-304 800 Watt 12 Inch Slim Shallow Subwoofers Car/Truck DVC Subs

QPower Dual 12" Sub Box for Chevy Silverado 1500, GMC Sierra 1500 (Non-HD) 04-06

SSV Works DF11-USP10U Can-Am Defender HD11 10" Sub Enclosure - Unloaded

Kicker 12" Ported Comp Subwoofer Enclosure and Amp Bundle Includes Grill ( 43VC124, 46CXA4001 )

Kicker 12" Ported Comp Subwoofer Enclosure and Amp Bundle ( 43VC124, 47KEY5001 )