Hi Dave, they say the only stupid question is the one you don't ask, so here goes. What's a transformer cable?

I currently use an unbalanced TS to female XLR cable to fit in to my Shure PGXD4 wireless receiver. According to the specs of that the PGXD4 is an impedance balanced configuration.

So, in your opinion, would you use a different cable? If so, what?

Many thanks for pioneering this for us!