Tawa,
I own a pair of the RCA adapters that I use in my second system (main system has a full loom of HFC). With the RCA adapters, you should hear a positive improvement in sound. The actual HFC should sound even better.
The adapters will give you an idea of what the entire cable will sound like, of course the higher up the chain you go, the better the sound, IMHO.
I should also add that in my second system I also use some HiDiamond products.
I own a pair of the RCA adapters that I use in my second system (main system has a full loom of HFC). With the RCA adapters, you should hear a positive improvement in sound. The actual HFC should sound even better.
The adapters will give you an idea of what the entire cable will sound like, of course the higher up the chain you go, the better the sound, IMHO.
I should also add that in my second system I also use some HiDiamond products.