The PM-740-MP3 is a seven-channel mixer with a variety of built-in features, housed in a rugged cabinet suitable for heavy-duty use. Features include built-in two-channel power amplifier with maximum output of 200W+200W, which can be selected as Main1-Main2, Main-Monitor, or Bridge connection of 400W, as well as two built-in limiter circuits which prevent excessive input level to the amplifer. Built-in independent 7-band graphic equalizers offer precise correction of the Main and Monitor outputs. This allows separate adjustments to suit different acoustics settings. Additional features include: global +48V phantom power for condenser microphones and built-in MP3 player with LED. The digital effect switch provides 16 different delaying time effects enabling users to add reverberation or ambiance to vocals or instrument sound.