The back panel contains an advanced on-board digital signal processor (DSP) accessible via a color LCD screen, allowing for comprehensive control over 12-band EQ, dbx DriveRack automatic feedback suppression, and system limiters. For connectivity, the input section offers:Two Input Channels: Both feature balanced XLR-1/4" combo jacks with independent gain knobs.Loop-Through Outputs: Dual XLR male loop-through options to pass individual channel signals to other speakers.Mix Out: One male XLR mix output to chain a combined mix out to additional audio equipment.