The RCF S8018 II is a compact, high-output, bass reflex subwoofer. The system is equipped with an advanced, hypervented 18" RCF precision woofer. It features massive ceramic magnet and high excursion 4" copper voice coil. The cabinet is designed to achieve tight and maximised output. The system is able to produce a Max SPL of 133 dB and handles 1000 Watts AES. The loudspeaker enclosure shape is rectangular and the cabinet is constructed of multi-ply Baltic birch plywood and finished in a very resistant, textured, polyurethane black paint. It features a M20 polemount receptacle, rubber feet, 2 x recessed handles. The front steel grille is epoxy powder coated.