The Roland KC-400 is a 150-watt stereo mixing keyboard amplifier built to faithfully reproduce the full frequency range of electronic instruments on stage and in rehearsal. Powered by a redesigned amp section driving a custom 12-inch woofer and horn tweeter in a twin bass-reflex cabinet, the KC-400 delivers clear, detailed sound whether you're playing an 88-note stage piano, a synthesizer, an organ, or electronic percussion. A built-in four-channel stereo mixer with an XLR mic input on Channel 1 lets you blend multiple instruments and vocals through a single amplifier, while the Output Select function on Channel 4 provides a convenient way to monitor click tracks without sending them to the main speakers. Master EQ with a Shape switch offers quick tonal adjustments to suit any room, and the Stereo Link feature lets you daisy-chain a second KC-400 for true stereo coverage on larger stages. Line outputs, a headphone jack, and a dedicated subwoofer output round out the connectivity, making the KC-400 a versatile all-in-one amplification and monitoring solution for performing keyboardists.