The TURBOSOUND TSW-218 is a horn-loaded double 18" subwoofer incorporating Turbosound's patented loading principles, designed for use in applications requiring accurate and powerful reproduction of low frequency energy at very high levels. Its ability to reproduce program material with such integrity makes the TSW-218 applicable for both fixed or mobile systems which require energetic low frequency response without stress or equalisation. It is primarily intended for large scale concert touring and festival applications, although it is also ideally suited to large nightclubs that demand no-compromise audio quality.