Rcf LF18N451 18-in Very High Power Handling And Efficiency Transducer Specially Designed To Provide Powerful And Accurate Sub-bass Frequencies With Low Distortion And Low Power Compression. - Walmart.com
RCF SUB 8006-AS Dual 18" Powered Subwoofer | Guitar Center
2x RCF SUB8004-AS 18" Professional Subwoofer W/ 2x RCF ART945-A Active Speaker
RCF SUB 708-AS MKII 18" Active Subwoofer SUB-708AS-MK2 B&H Photo
RCF SUB-8006AS Dual 18″ Active High Power Subwoofer – Sonic Circus
RCF SUB 708-AS MK3 18-inch 1,400-watt Active Subwoofer | Sweetwater