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 SRM 2850 Subwoofer Activo Dual de 18" | Gear4music
Mackie SR18S 18-inch 1600-watt Professional Powered Subwoofer | Sweetwater
Mackie extends SRM Professional Line with two powerful new dual-woofer designs | audioXpress
Mackie SWA2801Z Subwoofer (Dual 18 inch DJ Speakers) - AZ Local Only 1 Available | eBay
Mackie Thump 18S 600W 18" Powered PA Subwoofer with Dual XLR Inputs, Stereo Full-range and Highpass Outputs, Adjustable Level and Polarity Controls, Built-in Handles, and Pole Cup - Walmart.com