Sonance Cinema Series SUB8-100 230V cabinet subwoofer (each)
JBL PRX518S/230 18" 230V Self Powered Subwoofer System
Amazon.com: Pyle 1600 Watt Box Subwoofer Speaker System Set - Active Powered 12” inch Woofer for PA System, Louder Bass, with DSP Digital Signal Processor, Built-in Pole Mount Socket & Carrying Handles :