Free Express Shipping! Roland KC-990 Stereo Mixing Keyboard Amplifier with Effects Compact Amplifier with 320W Output Power, 2 x 12" Woofers, 2 x Tweeters, 1/4", RCA, XLR, and 1/8" Inputs, Built-In Stereo Effects, 1/4" Headphone, XLR Output & Line...