These Insert cables are used for creating a real-time effects loop by connecting a channel insert on an audio mixing board to an external effects processor with 1/4" unbalanced connections. Connect the TRS plug into the "insert" jack of your mixing board. The tip of the jack is a send (sending a mono signal to an external effects professor) and the ring is the return (returning a mono signal from the external effects processor back into the mixing board). This cable can also be used to split an
