Neutrik NC3 FXX-B 70

The 3 cups are super easy to solder even with a cheap soldering iron and they keep the conductors well separated. I wish TRS connectors had a similar 3-cup layout on the inside.

Be careful not to leave extra solder on the outer sides of cups 1 and 2 otherwise the chuck might be pushing against them. Heat the cups from the bottom instead if you use solder on the tip to improve heat contact.

The boot does take some pushing to get onto a 7.6mm diameter cable but not impossible. There's a larger compatible boot and chuck Neutrik BXX-14 (available separately, only in black) the boot of which goes on easier while still holding well but for the chuck I prefer the narrower one included with this connector as that protects better against accidental pulling forces. The chuck included does not cover cup 3 though unlike the larger chuck BXX-14.