The V218B is a DUAL 18" Bassreflex Subwoofer with 1600 W RMS and 132 dB max. SPL. Engineered with CATAR Technology (Clear Audio Time Aligned Response) it provides an outstanding sound reproduction. Offering plenty of tight and punchy bass, the V218B blends beautifully with the VA8 and form an excellent full range response with high SPL and clear sound. The uniquely designed cabinets are all made of multiplex and coated with the DuraCoat LX coating - which helps stand up to the tough daily demands of touring and live applications.