The Roland KC-150 Keyboard Mixing Amp is built like a tank. The KC-150 is a compact 65W amp with a 12" speaker and piezo tweeter, 4-channel capability, 2-band EQ, XLR mic input, and RCA stereo auxiliary input. It also has a subwoofer output compatible with the Roland KCW-1 for a powerful low-end boost. It can be mounted on a speaker stand for use as a stage monitor and has a headphone output for silent all-night solo jams. Cool amp.