This 3000-watt amplifier is rack mountable! It's a great addition to your equipment and provides big, punchy sound with a wide dynamic frequency range, so it's game for music and voice. It takes 4 RCA inputs - a true multitasker - and outputs to two sets of speakers, with an A/B selector. Plug in up to two microphones using the front ?" jacks. Easily adjust the treble, bass, and balance with the front-mounted rotary faders. This amp even has an echo effect. The master volume control looks great, too, thanks to the Blue LED effect. Runs on 110 or 220 V.