@gabrielphoto - Based on your last post it appears that I may be too late to the party, but I wanted to share my limited experience with interconnects.
I used the BJC LC-1 for a long time because I consider them to be a stand-up company with honest marketing and reasonable prices.
I did some dabbling with power cables and was surprised with the results, so I dabbled a bit with interconnects to satisfy my own curiosity.
My first move from the LC-1 ($50) was to an Audioquest Chicago ($100) unbalanced connection. I found it to be a significant upgrade in my system. That led me to move up the line a bit so tried the Audioquest Sydney ($200) and again found it to be an improvement. The jump from the Chicago to the Sydney wasn't as significant as it was from the LC-1 to the Chicago. Within the Audioquest line the basic sound was essentially the same and it just got a little bit better.
Later I upgraded my DAC so could utilize balanced cables. I started with some basic Monoprice cables that I borrowed from a friend. The design of balanced cables should significantly minimize any outside noise so I feel that the differences between cables should be less significant compared to unbalanced cables. I used a Black Friday sale to pick up a pair of Morrow Audio MA4 cables and was again surprised at the improvement. For comparison, the basic Monoprice XLR cables sounded nearly identical to the Audioquest Sydney RCA cables which I think demonstrates that the basic design differences are meaningful.
I'm not sure if there's a undeniably better cable than the BJC LC-1, but I found it worthwhile to step it up a bit. My cable choices were very much based on the maximum price I was willing to pay for a cable.