Seismic Audio - Baby-Tremor_PW - Powered 15" Pro Audio Subwoofer Cabinet - 300 Watts RMS - PA/DJ Stage, Studio, Live Sound Active 15 Inch Subwoofer MODEL Baby Tremor PW CONTENTS Powered 15" Subwoofer Cabinet CONDITION New APPLICATION Subwoofer / PA Subwoofer / DJ Subwoofer ACTIVE/ Powered / Active. 3 Channel Amplifier Built In -Class AB