I have a Mackie Profx16 board and some of the cables I've used were wobbly when connected to the main outs, they just didn't sit well. Not these guys. These cables might have the best connectors I've ever seen in a fairly inexpensive cable. I got 2 of them in yellow. I can track the cable easier in low light situations and since almost nobody uses anything other than black I can always tell it's mine. I highly recommend these cables.