Roland AC-60 - 60-watt 2x6.5" Stereo Acoustic Amp - Black Compact stereo acoustic amplifier with pure, natural tone and excellent projection 2-channel design: Guitar input plus mic/line input with phantom power Stereo 30W/dual 6-1/2" speakers loud enough for club gigs and small PAs Onboard DSP delivers lush stereo/multiband chorus, newly developed wide chorus and delay/reverb with footswitch control Built-in Auto Anti-Feedback controls allow for maximum volume without feedback