The Roland KC-400 4-channel keyboard amplifier is an outstanding solution for amplifying your keyboard and synthesizers, complete with onboard mixing and full-range sound. In fact, it’s also a well-equipped portable PA with an auxiliary input for external audio and an XLR microphone input for vocals. With a 12″ woofer and a separate tweeter driven by 150 watts of power, the KC-400 is ready for practice sessions and gigs. And for stereo operation, more channels, or simply to push more air, you can link two KC-400 amps together using the Stereo Link connection.