No,,,not a sovereign, it's one of my Excal 2's. I'm a little concerned now, I ordered one of Clives connector kits that he specifically states in his ad that it works with the NEL coils, and I'm sure it does. Yet when I contacted him, he had no idea. He directed me to this forum. NEL advertises the 15" Attack coil is compatible with the Minelab Excals (which I'm sure it is) but does not give you any instruction on how to match thier numbered wires with Minelabs color coded wires. 2 days and no response to my emails from NEL. I tried Mel Parker's response... that didn't work either. Now I'm frustrated and stumped.