Amazon.com: Skar Audio ZVX-18v2 D1 18" 3200 Watt Max Power Dual 1 Ohm SPL Car Subwoofer : Electronics
18" Lo Max® Subwoofer - Peavey Electronics Corporation
U-Series v2 18" 1750W Subwoofer – Sundown Audio
SDR-18 | 18" 1,200 Watt Max Power Car Subwoofer | Skar Audio
18" Custom Hand Built Subwoofer 5000rms (Team 18) - EM Audio Subwoofers
The Quad-18 - 4 x 18 Inch Subwoofer Cabinet | 4x18 Sub Woofer | Seismic Audio
STLF-18500A | 18" Cast Aluminum Frame High-Power Raw Woofer Speaker, 1 – Sound Town
One unit (not pair) |18 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-18 - Lii Song (Lii Audio), unique speaker, amplfier, quality and cost-saving parts for HiFi DIY
Godfather 18" Subwoofer | American Bass | Subwoofer Box
JBL JRX 218S, passive subwoofer 18", 350Watt, 4Ohm | MUSIC STORE professional