Peavey PLM 8128E is an eight-channel, digitally controlled mixer intended for low cost expansion of the PLM 8128 Master unit. This expansion module is fully menu driven and operates on a paging system designed for easy use of its many advanced functions. The Expander modules operate by taking control of the Master module's display, softkeys, and data entry section when a key is pressed on a particular Expander module. It offers complete programmable control of the input sensitivity, pan, monitor send level, and all three effects send levels for each channel.