SPEC RPA-MGCEX Control center for RPA-MG1000 / 3000To people who want to feel MUSIC. Control center for RPA MG1000 3000 with built in mechanical contact rotary switch, volume and remote control. You can constitute a Pure Direct System with MG series power amplifier. Selector section 4 channel mechanical selector selects the RCA and XLR signals and outputs them to the RCA and XLR terminals. Since there is no circuit between the input and output, it makes a perfectly pure and high fidelity selection.