Mackie Thump 18S 18" 1200W Powered DJ PA Subwoofer with Professional band-pass design Dual XLR inputs Stereo high-pass and Stereo full-range outputs - Walmart.com
Mackie Thump18S Powered Subwoofer | zZounds
Mackie SR18S 18" 1,600W Professional Powered Subwoofer Black | Guitar Center