The KC-990 Stereo Mixing Keyboard Amplifier with Effects from Roland features 320W of output power, four line-input channels, a dedicated auxiliary input, and support for an XLR vocal mic. Paired with two built-in 12' woofers and two horn tweeters, the keyboard amplifier can be used by musicians and producers to amplify pianos, organs, synthesizers, rhythm machines, and other electronic instruments.

The KC-990's cabinet provides extended low-frequency response without distortion. There is an auxiliary channel with 1/8' and RCA inputs for connecting smartphones, music players, or other devices. Channel 1 also includes an XLR input, allowing you to plug in a vocal mic for even more versatility.

Furthermore, this keyboard amplifier integrates into many environments. The stereo 1/4' line outputs, enable you to interface with PA systems, stage monitors, and other recording devices. There are stereo XLR outputs with switchable ground lifts, which eliminates hum that can occur when connecting to a main PA. Plugging into the phones jack, will mute the onboard speakers. This is suitable for private practice sessions and checking sounds on stage with headphones. The amplifier also includes four caster wheels for easy transport.