Kraken Tournament Edition Mic issues

Hi, anybody know why the mic is so quiet when I'm in chat on my xbox one x? I have 2 sets, one work perfect and one can only just be heard, so it's not my xbox settings, before that's suggested. I tried recording with it on my pc and it cannot pick much up, it's a new set, is there a way to adjust it please? Anyone else had same issue? It sounds like I'm whispering even when I'm shouting??? Thanks for reading, any ideas appreciated. Cheers. Ps I tried it with the sound box to increase volumes on mic and voice ect, on the pc, but obviously not compatible with the console.