High-power, Low-frequency Reinforcement The RCF SUB 708-AS MK3 packs 1,400 watts of pure Class D power into a portable active subwoofer. This high-powered sub boasts a state-of-the-art, ceramic-loaded 18-inch woofer and a bass-reflex housing, yielding low end down to 35Hz, sound pressure levels up to 133dB, and generous amounts of headroom. The SUB 708-AS MK3 is jam-packed with performance-enhancing features, including digitally controlled EQ, soft limiting, and protection. And everything is housed in a near-bulletproof Baltic birch cabinet with a scratch-resistant polyurea coating. Designed as high-performance low-frequency reinforcement for 8- and 10-inch loudspeakers, the SUB 708-AS MK3 is a top-shelf subwoofer for small- to mid-sized venues and portable live sound applications.Delivers rafter-shaking bass The ideal complement to your 8- or 10-inch PA loudspeakers, the SUB 708-AS MK3 pumps 1,400 watts of Class D power through a high-power, ceramic-loaded 18-inch transducer, arming you with thunderous bass down to 35Hz and a