Merlin vsm mme owners, Cardas cabling Question.

HI, just purchased an used pair of merlin vsm mme,replaced my Von swheikert VR3, my Question is, why cardas cables are so critical for this speakers, had cardas cables before, speakers and interconnect, and heated the sound of those cables, very muddy and slow, bass all over the place,coulnt'pull them out fas enough,
my preamp is joulet electra 150mk11, and I'm really scare to spend $3000,or more on used cardas GR,cables,now I'm using KCI silk worm with analysis solo cristal I/C, sounds good, but a little thin, great midrange, but not full body sound, that I'm acustom to, what will cardas bring to the table , in this situation.

your coments wil be apreciated;

thanks:

Cheers: