Rolands KC-990 Keyboard Amp is their flagship model. This performance ready amp is packed with high-end features including four on-board DSP effects four stereo input channels a stereo aux input and mic XLR support. The KC-990s 320W output is suitable for outdoor use as well as large indoor venues. Two woofer speakers offer stereo projection for an immersive sound. The KC-990s master volume knob keeps your sound level whilst the three band EQ allows you to tweak the frequencies to suit your performance space. The KC-990 benefits from a heavy duty frame to keep it protected whilst in transit whilst the casters offer easy movement.