Help with upgrading speaker cables


I have a BAT VK55 and Vandersteen 2Ci speakers. I currently have Kimber Kables biwired between them. These cables are about 20 years old. I am thinking of upgrading them. I like a detailed sound neutral warm as opposed to neutral bright. Any suggestions would be appreciated.

Thanks
jtma
Relatively thick Ohno continous copper crystal, also called long crystal copper Zip cord. It is nuetral and not a dollar per foot it is about $5-7. It con be found from many sources do a search. I think Moon audio and certainly Neotech amongst many others. It may not be what you want nuetrality can be shockingly different than your reference system sound.
I have 3A sigs with Quicksilver amp's I like the warmth of the AQ copper, Mont Blanc or better yet Volcano. I think they have the same sound characteristic but the Volcano is a much bigger sound IMO. I auditioned SR and went with the Volcano.
P.S. I had a pair of Kimber Bifocal XL's and the Volcano bested them by quite a bit in my system, AQ goes well with Vandy's.