Voxativ speaker cables 2.5 m Banana- price reduced

I am the original owner of these cables since buying them directly from Voxativ at $1600 6 years ago. These cables look plain and nothing fancy in cosmetics, but don't be deceived by the look. I tried 10 different speaker cables from almost all major brands ranging from $500 to $4000 to find any copper cables which could beat these humble look pair. For my high efficiency speakers (100 db), however, these cables beat every single cables I have tried, so kept these 6 years with complete satisfaction.
Now I am re-configuring my gear and needs longer pair (4 m), so these 2.5 m banana pair are for sale. Before posting this ad, I curiously tried the cables to my lower efficiency speakers from Thiel. I was amazed that I could see exactly same improvements with what I saw 6 years ago even for these lower efficiency speakers: tighter and slamming bass, beautiful mid and open high with no harshness. I really don't know what exactly Ines in Voxativ did for these cables. But I can say it did almost something magical to my two sets of speakers.
If you feel your system is little bit bass shy (and/or muddy bass) and fatiguing high, this is something you should try.
I can do free shipping to lower 48 at my asking price.