I learned in the eighties that interconnects matter when I went from the cheapie IC’s that came with components to Monster. I paid $112 a pair for them and was blown away! I ended up getting two more pair later!
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.