Often, manufacturers will provide XLR I/Os FOR CONVENIENCE, THOUGH THEIR KIT IS NOT TRUE BALANCED. Unless your components have true balanced circuits then XLR won’t make a difference.
What surprises me most is how many reviewers do not have true balanced systems, but their personal kit have XLR I/Os. Their editor sends them true balanced kit to review (WTF?) then they ignorantly say they heard no difference! Well, DUH! I used to rag to the editors about this, but it always fell on deaf ears
Underwood HiFi has some reasonably priced speaker cables, said to be of high quality
hth