I've been using these great phono (RCA) sockets for years due to their excellent sonics and superb build quality. They are non magnetic, silver plated and are teflon insulated. They require soldering and fit a 10mm chassis hole (assuming you're using the supplied insulating washers, or 8mm without). This auction is for a brand new pair (one red band, one black band) and there are shipping discounts availble for multiple purchases. These sockets are also used by many high end manufacturers.

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