I own these cables as well. I too looked for XLR's that coule better my interconnect sound. I frequent a local audio shop and "loaned" a pair of Transparent cables costing $650.00. I brought them home and to my surprise within minutes I removed them from my system. I think the Signal Reference cables are a good component and probably not a weakness in my system particularly at my price range.
Interestingly, and speaking of spending money to improve sound, I also "borrowed" a King Cobra CX which sells for $3,500.00. To my surprise, the PC actually changed the fundamental sound of my saystem. So much in fact that I did not listen to my system for two weeks afterward to get over my shock. This was not just my opinion, my wife was also stunned by improvement.
Bottom line I suppose, to get better sound you are going to spend a good amount of cash.
Interestingly, and speaking of spending money to improve sound, I also "borrowed" a King Cobra CX which sells for $3,500.00. To my surprise, the PC actually changed the fundamental sound of my saystem. So much in fact that I did not listen to my system for two weeks afterward to get over my shock. This was not just my opinion, my wife was also stunned by improvement.
Bottom line I suppose, to get better sound you are going to spend a good amount of cash.