Jallen makes a good point, especially for those of us who like vintage equipment. Some of the RCA (both male and female) do vary in size and locking contacts help very much.
anyone else hate locking RCAs?
I find that whenever I tighten a locking RCA connector even a little bit, it becomes a battle (and one that I fear will result in casulties -- the rca connectors, the cable, the rca inptus). Lately, I find myself unwilling to tighten them at all. And then the barrels are always falling off and getting lost. Just give me a nice regular connector any day.