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
I am using Vandersteen 5A and tried many brands of cables including Kimber Select. The best were Anti-Cables - not twisted. Their performance with my components was better than Purist, Cardas, Audioquest, Analysis Plus, Wireworld, etc. They are cheap and you should try their money back guarantee.
I use Synergistic Research Tesla cables with my all BAT system. They are the best I've heard by a long shot.
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.