Unmatched Quality and Performance
With the power for mid-to-large venues (300 watts + 300 watts) and the added advantage of one-knob compression on mono channels, the EMX312SC may be the model you need.  Experienced musicians, performers, speakers, and club operators know the importance of a high-quality sound system with the right features and performance to deliver their sound. Where portability and convenience are important criteria, a system based on a high-performance Yamaha EMX series powered mixer is definitely the way to go. In one integrated, portable unit you have a mixer to combine and balance your microphone, instrument, and line sources, effects to refine and polish your sound, and power to drive the main speakers and even monitor speakers as well. But that's nowhere near the whole story - Yamaha EMX-series Powered Mixers offer a range of features that let you mix, process, and deliver your sound with maximum quality and creative control ... and, of course, that unrivalled Yamaha sound.

Built-in Channel Compressors
All four monaural mic/line channels on the EMX312SC (and the higher power EMX512SC) feature built-in compressors that can help to bring vocals to the front of the mix, give your guitars extra smoothness and presence, deliver more authoritative bass sound, and generally refine your mixes in a multitude of ways. These one-knob compressors are simple to use, too. There's no need to juggle multiple attack, threshold, makeup gain, and other controls - just set the COMP control for the amount of compression you need.

Built-in Digital Effects
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. Yamaha SPX digital effects are widely recognized as being some of the finest available, and the effects provided in the EMX mixers live up to that reputation.

Built-in Graphic EQ
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.

Plenty of Inputs
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. If you need only microphone inputs you can use up to eight mic channels. Or if, for example, you want to play recorded background music during breaks (that's one stereo channel), and you have a keyboard player with a stereo-output keyboard (that's one more stereo channel), you still have six mic/line inputs. If you use all four stereo pairs to handle stereo line sources you have four channels available for mono mic or line input. This is a very versatile system that can adapt to your needs.