The Yamaha's EMX-Series Powered Mixers, features Three Models EMX512SC 500 Watts, EMX312SC 300 Watts and EMX212S 200 Watts for Large Venues and Audiences also for Outdoor Sound. The EMX212S, EMX312SC, and EMX512SC all feature a selection of 16 top-quality Yamaha SPX effects - including reverb, echo, chorus, flanger, phaser, and even distortion - that can add the final touch to your live presentation. Graphic equalizers are provided for both the main and monitor channels, so you can effectively control feedback or tailor the sound to match the room and program material. FCL System indicator LEDs at the top of each channel light if the corresponding channel goes into feedback, so you won't have to fumble around searching for the channel that needs adjustment. All three mixers in this series offer a total of 12 input channels - four for monaural microphone (incl. Phantom Power) or line input, plus four pairs that can function either as monaural microphone inputs or stereo line inputs - providing you with a versatile mix of input capabilities for a wide range of applications. These powered mixers certainly don't skimp on power. From the EMX212S with 200 watts per channel to the EMX512SC with a solid 500 watts per channel, there's a power configuration to suit any application and venue.