I was also a cable doubter but tried some used Silversmith Fidelium and heard a significant difference. Then I tried an expensive usb cable for crying out loud and that made a difference. This is some crazy business. I didn't think a cable that carries 1s and 0s could make any difference. I guess you just have to use your ears.
Disservice: XLR interconnects
I ended up shelling out some serious bucks and buying Cardas XLR interconnects and connected them between the Luxman C900U, M10X and the hifi Rose RS150B. I am blown away, at the details and just how it bumped up the sensation of just the beautiful musicality..
I have to say, I am no longer in the camp of cables don't matter. In fact, I think folks who say cables do not matter are doing a great disservice to the audiophile community.