This item is in mint condition and it has been tested and approved by Westlake Pro's technical services department. The Radial ProD8 is a high density 8 channel passive direct box designed specifi cally for keyboard systems in pro touring environments. Each channel features dual ¼” inputs that are premerged using a resistive circuit. The dual inputs may be used to sum a stereo signal to mono or for redundant back-up systems in case of equipment failure. A built in effects loop uses a TRS insert jack allowing the dual inputs on each channel to share an external effects device. Local monitoring for each channel is provided via the parallel thru-put connector.