Peavey MS Series is a stereo mixing system designed for professional audio applications. It features 16 channels, each with a variety of controls and functions. The channels include gain, monitor send, high, mid, and low frequency EQ, effects send, pan, PFL (Pre Fade Listen), and channel level slider. The master section includes monitor A/B sliders, main left/right sliders, master slider, monitor A/B graphic equalizers, left/right graphic equalizers, effects masters (A/B), electronic delay/repeat, reverb return, and effects A/B return. The auxiliary outputs include stereo out and PFL level.