RCF V218-S Passive Bass is a very high-output, passive bass-reflex subwoofer. The system is equipped with two advanced 21” RCF precision woofers mounted in a front-loaded configuration. This high power design marks the latest refinements in compact subwoofer design, resulting in a fast and controlled reproduction of the bass frequency range. The two transducers couple to achieve tight and maximized output, while the subwoofer design ensures an efficient acoustic response down to 25Hz. This is ideal for live performance, DJ sets, rental solutions, or more permanent installations.