It's a standard connect for this style. mid way down horizontal holes with finger screw compression securing wires. Works great and allows for easy removal of banana plugs if changing to a application where they cant be used. Can be reused over and over allowing for non permant applications. .
I guess I was hoping for more but at this price it's OK for temporary hook up but I would not trust them for permanent installation on good quality equipment. They are thin plastic, the wire ends are extremely thin brass threads that won't take any stress. The plug end themselves are slender, rotate and fit loose in a standard width amp/speaker output connector. Bending the plug ends out with a small screwdriver to make them thicker helped, but I would not recommend these for anything but bench testing.
These dual banana plugs are decent but nowhere near the qualityof my old Radio Shack plugs. The tolerances are sloppy and the build quality is called into question.I would've preferred to pay more and have a more robust product.
I needed a smaller gauge banana plug as my wire would not fit the standard size plugs, This is the only one that worked for me. I had to cut the plastic in 1/2 so the plugs would accommodate my Yamaha inputs as they were too close the way they came. However, after the surgery everything worked perfectly. Great product.
The plugs are of machined metal and gold plated. Wires are easy to insert and lock in place, they have a great fit and finish. Inserting them into my new Marantz AVR was a perfect fit ! Could not be happier......
I bought extra for when the time comes for the full NINE channel theater hook up !