1...Mackie SRM1801 18-inch 1000W Powered Subwooferbr br br 2...American Audio Powered 18Iinch Sub Wooferbr br br 3...Pyle PASW18 Stage Speakerbr br br 4...Atlantic Technology 422SB-BLK Powered Subwoofer (Satin Black)br br br 5...