The Mobile Fidelity Sound Lab Connector Cleaning Brush is the best brush available for cleaning out all the grunge from the connections in your system. Made of nylon, it ideal for phono (RCA), XLR, coax inputs/outputs as well as speaker binding posts. The nylon brushes with not damage RCA or XLR plugs. Once you see how much dust and debris gets removed, you'll hear the difference.
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