Nordost Cables

I have recently changed over my amps from a valve set up to chip amps and need a new Interconnect. I currently have an Audionote IC and it leaves the sound a little too bright especially on bad CDs. I have borrowed a Nordost Frey and like what it does, although the blue Heaven lost too much detail in comparison. Unfortunately I can't afford a new wiring loom or a $1,000 IC at the moment.

Anyone any experience of the Heimdall or Baldur and will they give me something similar ? Would the SPM do the same magic as they appear used at lower costs?