Roland’s famous CUBE amp lineup expands the hot new CUBE 15X. With great new features such as Power Squeezer® for maximum sustain without maximum volume, a mini-jack aux in for playing along to MP3 and CD players, and of course that incredible CUBE sound, this amp is built to rock! 15 watts of power High-quality 8" speaker Overdrive, Distortion, and EQ built in Power Squeezer for maximum gain and sustain - even at low volumes