The KC-200 4-Channel Mixing Keyboard Amplifier from Roland features 100W of power, an integrated mixer with four line-input channels, and a dedicated auxiliary input with support for an XLR vocal microphone. The KC series bass-reflex cabinet, is paired with a redesigned power section and updated 12" woofer. It can be used in sound reinforcement applications for 88-note stage pianos, organs, synthesizers, rhythm machines, and other electronic instruments. In addition to the four 1/4" line input channels for various electronic instruments, the KC-200 has an auxiliary channel with 1/8" and RCA inputs. These can be used for connection to smartphones, music players, or other devices. Also, channel 4 is equipped with a headphone jack. It allows you to monitor click or guide tracks while performing, without sending the sound to a PA via the amp's line out jack. SPECIFICATIONS Rated Power Output 100W Power Consumption 70 W Dimensions (W x D x H) 19.0 x 11.0 x 17.0" (480 x 295 x 435 mm) Weight 33 lb (15 kg) Package Weight 42.45 lb Box Dimensions (LxWxH) 21.5 x 20.5 x 14.5"