While the KC-60 is built primarily for keyboards, it's also at home with a microphone and CD player. Specifically, there are three input channels including an XLR Mic input and Auxiliary input—each with its own adjustable volume. And while 40 watts of power sounds good, you can also add an optional subwoofer from any manufacturer via the KC-60's Subwoofer output—a first of its kind on a keyboard amp!