The Behringer Ultratone KXD15 PA System/Keyboard Amplifier is a powerful amplifier suitable for keyboards and drums. The lightweight speaker acts as a 4-channel PA system and features an impressive 15-inch Turbosound speaker and a 1-inch driver. The 600-watt amplifier is constructed with class-D amp technology to deliver an incredible sonic performance within lightweight housing.An FX processor provides 100 presets including reverb chorus delay and many more whilst a revolutionary feedback detection system helps you concentrate on your sound. All 4 channels on the KXD15 include separate volume and FX send controls with an additional XLR mic input on channel 1 for direct dynamic microphone connection.