18 inch subwoofer

Kicker 52CVR104 - CVR10 CompVR 10-Inch (25cm) Subwoofer, DVC, 4-ohm w/ Speaker Wire Bundle

Kicker (2) 52CompVR 15-Inch (38cm) Subwoofers, DVC, 4-Ohm w/ Speaker Wire Bundle

Kicker Comp R 12 Inch Dual Subwoofer in Vented Enclosure Package with 46CXA8001 Amplifier, Bass Knob & Speaker Wire

Kicker (2) 52L7XS152 - SoloXS L7XS 15-Inch Competition Subwoofer, 2-Ohm

JBL Professional EON718S 18 Inch Powered PA Subwoofer

Kicker 45KMF102 10" Weather-Proof Subwoofer for Freeair Applications 2 Ohm- Kicker 45KMG10W 10" LED Grille (White)

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

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

Kicker Hideaway HS10 10" Compact Powered Subwoofer

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

Q Power QBOMB10V Dual 10 Inch Vented Port Subwoofer Sub Box w/ Bedliner Spray

QPower QBGMCFF07408 8 Inch Quad Port Subwoofer Enclosure Box with Underseat Front Fire for GMC and Chevy Crew Cab 2007 to Current

Q-POWER QBOMB 10" Sealed Car Subwoofer Sub Box Enclosure | QBOMB10S Single

Q Power QBomb 10 Inch Single Vented Subwoofer Sub Box with Black Bedliner Spray

2) Pyle PLPW10D 10" 2000W Car Subwoofer Audio Subs DVC 4 Ohm + Ported Vented Box

QPower QBOMB8V Dual 8 Inch Vented Port Subwoofer Sub Box with Bedliner Spray

QPower BASS12 3 Hole 12" Sealed Car Subwoofer Enclosure Box | 35 x 20.25 x 15

Kicker Solo-Baric L7TDF Down-Firing 12" 2-Ohm Subwoofer Loaded Enclosure

Kicker Solo-Baric L7TDF Down-Firing 10" 2-Ohm Subwoofer Loaded Enclosure

Kicker 49L7X101 SoloX L7X 10" 1-Ohm Subwoofer

Kicker 10" LED Marine Subwoofer – Charcoal, 4 Ohm Free-Air (45KMF104) – Boat Audio Bass Upgrade

Kicker 49L7X122 SoloX L7X 12" 2-Ohm Subwoofer

Kicker L7T 12" Dual Loaded Subwoofer Enclosure & LX1250.1 1250W Mono Amp Bundle – Car Audio Bass Upgrade