18 powered subwoofer

Jensen JW10A 10" Powered Subwoofer Enclosure

Alpine PWE-S8 Compact Powered 8" Subwoofer System

Cerwin Vega VRAD10 10” Powered Subwoofer – 450W Max / 200W RMS Slim Active Subwoofer with Built-In Class D Amp – Compact Bass Enclosure for Tight I...

Hertz HMS 12 S4-LD-G 12" Marine Subwoofer with Venezia V1 Monoblock Subwoofer Marine Amplifier and Remote Knob

Pioneer® A-Series TS-A25S4 10-In. 1,200-Watt-Max 4-Ohm Single-Voice-Coil Subwoofer

Hertz Venezia V1 Monoblock Subwoofer Marine Amplifier with 2 HMS 12 S2-LD-SW 12" 2 Ohm Marine Subwoofer with RGB LEDs, White Sport Grille

Kicker 10" 2-ohm Marine Free Air Subwoofer with included Silver Grille.

Kicker 10" 4-ohm Marine Free Air Subwoofer with included Silver Grille.

QPower Dual 12-Inch Heavy Duty Ported Car Audio Subwoofer Box - Deep Bass MDF Enclosure with Charcoal Carpet Finish, 1.6 Cu Ft Air Space Per Chamber

QPower QBOMB12V Dual 12" Vented Ported Subwoofer Sub Box with Bedliner Spray

QPower QBASS Dual Vented 12 Inch Heavy Duty MDF Material Single Car Audio Subwoofer Enclosure Box with 2 Vents for Better Heat Management, Charcoal

MTX Dual 12 Inch 1000 Watt RMS Vented Subwoofer Enclosure + Planet Audio 1500 Watt Monoblock Amp + Soundstorm 8GA Wiring Kit, Black

QPower 12 Inch Heavy-Duty Dual Sealed Carpet Covered Durable Car Audio Vehicle Subwoofer Enclosure Woofer Box, Charcoal Gray

Pyle 6.5'' 600W Dual Voice Coil 4 Ohm Subwoofer (PLPW6D) - Black

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

MTX TNE212DV 12-Inch 2000-Watt Max Car Audio Dual Loaded Subwoofer Box Enclosure

Q-Power Shallow Single 12 Inch Heavy Duty Sealed MDF Material Truck Audio Subwoofer Enclosure Box with Durable Carpeted Exterior, Charcoal Gray

QPower QBASS Dual 15-Inch Vented MDF Subwoofer Sub Box Enclosure

Pyle Gear-X Series 5" 200W Component Car Midbass Woofer - PLG54

Q Power QBomb Single 12 Inch Vented Subwoofer Sub Box with Black Bedliner Spray

Pyle PLPW10D 10" 2000W Car Subwoofer Audio Power Subs Woofers DVC 4 Ohm, 2 Pack

Kicker 48CWRT124 CompRT 12" 4-Ohm DVC Subwoofer

QPower QBOMB12VL Single 12" Vented Ported Car Subwoofer Sub Box Enclosure QBOMB

QPower 10 Inch Heavy-Duty Single Vented Carpet Covered Durable Car Audio Vehicle Subwoofer Enclosure Woofer Box, Charcoal Gray

QPower QBOMB12VL 12 Inch Dual Vented Ported Car Subwoofer Sub Box Enclosure

Kicker LX1650.1, (2) 10" CompQ 4 Ohm, Subwoofer & 1650w Mono Class-D Amp Bundle (51LX16501)c51CWQ104)

PYLE PLPW8D 8" 800W Car Audio Subwoofer Sub Power Woofer DVC 4 Ohm Black

2) Boss CH10DVC 10" 3000W Car Subwoofers Audio DVC Power Subs Woofers 4 Ohm

Pyle 8 Inch 1600W DVC 4 Ohm Car Audio Subwoofer Speaker Set with 40 Oz Magnet and 1.5 Inch 4 Layer Voice Coil, Black (2 Pack)

QPower QSMBASS12 Dual 12" Inch Sealed Angled Subwoofer Sub Box Speaker Enclosure

Kicker 48CWRT82 CompRT 8" Subwoofer, DVC, 2-ohm

QPower Single Triangle Car Audio Ported Subwoofer Box, Fits Most 12-Inch Subwoofers - Deep Bass MDF Enclosure, Tuned to 54 Hertz, 2.2 Cu Ft Air Space