The EMX Powered mixers may be designed for convenient, easy operation, but that doesn't mean that basic quality and performance are compromised in any way. In fact, they inherit technology from the acclaimed Yamaha PM3500 and PM4000 sound reinforcement mixing consoles – staples in the professional reinforcement field worldwide. Yamaha expertise and technological innovation is even at work in the details that deliver subtle but vital improvements in the overall sound: superior RF (Radio Frequency) rejection and exceptionally clean, transparent head amplifiers are just two examples.

High power alone is simply not enough. At any power level the amplifier's output must remain an accurate, uncolored image of the original input signal. That demands much more technological finesse than simply building a bigger amp. In addition to totally clean, natural power, the EMX power amplifiers feature Yamaha's unique 12184 PCT EEEngine technology for extremely efficient operation with significantly reduced AC power consumption and heat generation – factors that contribute to the lineup's light weight and compact dimensions as well.