Alto Black 15S, Active 15" Subwoofer with 2400 Watt Power, 2400 Watts peak Class D power (1200 Watts continuous), Unrivaled acoustic accuracy via advanced engineering and design, Works with free Live Drive app for wireless sound-shaping control, Wirelessly level-match, EQ, time-align, and more, Stereo XLR outputs: left link, right mono, internal crossover on through, Rugged cabinet, Powerful 15" low-frequency, long-excursion driver, Stereo inputs: Mic/Line left channel, XLR right channel, Adjustable level and polarity controls, Max SPL 132 dB,Switch to turn off logo LED, Steel-reinforced rubber feet, Standard 35mm pole socket, Dimensions 458 x 513 x 638 mm, Weight 42,8 kg