I think you were hear different things on different equipment. Im a poor man but on my big system I used all MIT Oracle cables and found the biggest diffence was in the speaker cables. I.M.H.O. MIT is warm and has very good control over your speakers. In my case 5 different sets of Thiels. If you get a chance A-B the cables and decide for yourself. I think you will find it takes alot of money to make a small improvement in sound. Spend the money on equipment or try a company (PS Audio) that will let you live with cables for no fee, just shipping.
Good Luck!
Good Luck!