A professional subwoofer system, designed to complement and extend the low frequency output of any S-series full-range loudspeaker. Its rugged construction ensures an accurate acoustic response uncolored by enclosure resonance, as well as the ability to stand up to abusive road conditions. The 215S is characterized by deep, dramatic bass and a fast transient response. Together, these qualities give the unit a punchy, but solid, foundational sonic signature. Its high power and low distortion enable it to provide precision sound reinforcement for all musical styles.