These connectors are, in a word, awesome. I've worked with RCA connectors from Switchcraft and Neutrik, and these easily beat both.The connector shell is large and roomy, with an exit hole that will accommodate just about any cable including large, rubber-jacketed microphone cable.The internal strain relief is long, with arms that bend securely over even very large cable jacketing. The center pin is machined with a solder cup similar to the back end of a male XLR pin and could not be easier to solder to. The connector screws together nicely and feels secure and solid, and the knurled grip makes them easy to hang onto when connecting and disconnecting.These are now my first choice for professional installations.