2 channels; Gain control for overdrive; 3-band EQ: treble, mid-range & bass control; 1/4 headphone jack for silent rehearsing; Freq resp: 20Hz-15kHz; 8 speakers; 60W; Overdrive & digital delay; Dim: 13.58H x 15.75W x 8.27D; Weight: 22lbs; 1/4 output jack for hooking up external speakers;