I think you will realize some increase in performance, but not the full potential in the change in cables. In my opinion, xlr connections are the best at reducing the noise floor and using adapters limits the capabilities of the cables. Nonetheless, I think the Cardas cables will be an improvement over the Transparent. I'm somewhat surprised that the Onkyo outperformed the Halcro processor, but that is why it pays to listen and not get caught up in brand names.
Good luck.
Good luck.