Alternate interconnect to Cardas Neutral Reference


I'm currently using Cardas Neutral References in my system and I'm finding them kind of dull and unemphasizing. They do have a nice warm and neutral sound to them. However, I'm looking for an interconnect that has more definition, clarity and is musical. My current set-up is:

Conrad Johnson MV-60 amp
Conrad Johnson Premier 16LS pre
Musical Fidelity Tri-Vista SACD
Dynaudio Special 25's
PS Audio P500 A/C conditioner

So far I've been considering Audience AU24, or Audioquest Cheetah. I'm open to suggestions or recommendations...
hanzy1095
After audition over 50 inteconnects, these are my choices:
Between amp and preamps:
NBS classic line MK II version: Statement, professional, master, signature and king serpent.
Between source and preamp: Stealth Audio cables M-21 special, XLO limited.
Thanks to everyone for their insight so far. I probably should have specified that my total budget for interconnects would be $1,000. I would prefer to buy used as someone pointed out earlier that you can get more for your money.