Roland KC-200 Overview 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. Full-Range Sound for Keyboards and Electronic Musical Instruments The KC-200 offers full-range audio reproduction in a compact amp with 100W of power. The cabinet features a twin bass-reflex design that provides extended low-frequency response without distortion. Versatile Connectivity for Performing, Recording, and Practice The KC-200 integrates into any playing environment. A 1/4" line output enables you to interface with PA systems, stage monitors, and recording devices. A sub-out jack is available for a powered subwoofer and the level is tied to the amp's master volume for one-touch control. Plugging into the phones jack mutes the onboard speakers and sub out, which is suitable for private practice sessions, and more. Onboard 4+1 Mixing There are four 1/4" line input channels for support of keyboards, drum machines, and various electronic instruments. There is also an auxiliary channel with a 1/8" and RCA inputs for connecting smartphones, music players, or other devices. Additionally, channel 1 includes an XLR input too, letting you plug in a vocal mic for more versatility. Channel 4 is dedicated to monitoring through the KC-200's onboard speakers and headphones jack; this allows you to monitor click or guide tracks while performing without sending the sound to a PA via the amp's line out jack.