The KC-550 boasts 180 watts of powerful sound via a 15-inch speaker and horn tweeter. In addition to its four input channels, this flagship amp includes an Output Select switch for selecting the monitor sound destination, a Shape switch for quick sound adjustment and an XLR Line output for direct connection to a mixing console.FEATURES:[ Affordable 4-channel keyboard amplifier with 180-watt[ 15-inch speaker and piezo tweeter [ Includes stereo Auxiliary input (RCA) and XLR Microphone input [ 3-band EQ (high, middle, low) and Subwoofer output compatible with new KCW-1 [ Equipped with Headphones output [ weight: 29kg, flanch for suitable speaker stand[ 4 stereo input channels[ Stereo Aux-In (cinch) for CD/MD player[ weight: 22kg[ output select &shape switch