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 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.
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.