Cardas Neutral Ref Speaker Cable Upgraders

I am currently using Cardas Nuetral Ref speaker cable with Kimber's Select top of the line interconnects. My system sounds fantastic but my addiction has me always wanting more... I am looking for a speaker cable that provides: razor sharp imaging, deep and wide soundstage, dark black background, natural sounding teble and mids, tight bass and no restriction on dynamics. I know this is probably everyones dream but has anyone found something close. Your input is much appreciated!!