There is a lot of great cable out there, Neotech make some of the good stuff.
You need to decide what you want from the cable because everything about it will be an influence. Dielectric, conductor material, length, RCA plugs, it all makes a difference.
Personally, I don't like silver plated cable, I doubt the HF to be exaggerated on nearly all the ones I tried but I never tried this one so can't say.
Silver cable, in my opinion, is very difficult to get right. Again, I've never had a silver cable I liked. I've tried a lot of them too.
My personal opinion is that a cable with the least amount of "imperfections" in the conductor will do a better job than a cable that's intrinsically flawed in its conductor material. I also don't like cables with with small conductors.
The SPOTFIRE were specially selected because they tick all of my requirements.
I haven't made a pair that are 4m long and therefore I haven't got an idea about the Capacitance of the cables, I can find out though.
If you want a seriously low capacitance cable, there's Van Damme LO-CAP & Sommer carbokab which tick the boxes.
You're welcome to join the loan list for the SPOTFIRE but they are 1m long so may not work out.
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