MP418SP 18 Inch Powered Subwoofer System - JBL Professional
JBL EON718S 1500-watt 18-inch Powered PA Subwoofer | Sweetwater
One Pair | 18 Inch Full Range Speakers | Superb Scale Soundstage with New Imaging | F-18 - Lii Audio, unique speaker, amplfier, quality and cost-saving parts for HiFi DIY