They are only a upgrade if the components they are hook too are balanced from input to out put. Just because your components has balance inputs and out puts doe not mean it is balanced.
Should I try XLR?
I've never tried XLR cables, just regular ICs with my components. I currently have a Luxman 505UXii integrated with Dynaudio Special 40s. My CDP/streamer is a Marantz ND8006. I'm currently using WyWires ICs with all of my equipment. Would adding XLR cables to the CDP/streamer make a huge difference---if so, should I stick with WyWires XLR or something else? Thanks in advance for your help.