The SUB 18-AS is a portable 18" high-power active subwoofer for live sound applications. It features a state-of-the-art transducer and a powerful 2200-watt Class-D amplifier that delivers sound pressure levels up to 135 dB with exceptional headroom. Designed as the ideal complement for 10", 12", or 15" loudspeakers, it includes a Bass Motion Control algorithm for extended bass response at any volume. The connection panel features mono/stereo combo inputs, an XLR stereo link, and XLR crossover outputs. Rear panel controls include volume, polarity, and low-pass frequency selection. The rugged all-wood cabinet with scratch-resistant polyurea coating makes it durable, easy to carry, and easy to install securely. With its versatility, sound quality, and high power output, the SUB 18-AS is perfect for small to mid-sized venues and portable applications.