I have tried the SC Silver Resolution Reference interconnects, Audioquest King Cobra interconnects, Audioquest Diamondbacks, Kimber PBJ's, and the LAT International IC-200 Mk.2 interconnects on my SA8001, in both my reference headphone system, as well as in my home based system.
Heres what I found:
Overall, I prefer the Audioquest King Cobra with most CD's, especially brighter ones.
It is a killer all copper based interconnect, IMHO!
The SC Silver Resolution ranks a very, very close second.
The Audioquest has a very slight warmth to its sound, but has lots of organic body, black background, dynamics, detail, excellent bass, and a wonderfully smooth and detailed midrange and treble, with a great sense of space.
The SC Silver Resolution has slightly more treble detail, and a slightly wider soundstage, but does not quite have the body, dynamics, or smoothness of the Audioquest.
The SC does have a nice black background, good body, and a very nice sense of space.
The SC slightly emphasizes tape hiss, and sibilance compared to the AQ.
The LAT is good, but sounds slightly congested, and slightly emphasized in the upper bass compared to the SC or AQ. The LAT doesn't sound quite as spacious as the AQ or SC.
Treble extension on the LAT is very good, however.
The Kimber PBJ is great, especially for the price, but it does not quite have the refinement, dynamics, body, space, and detail of the SC and AQ.
The Kimber is very slightly thin in the lower mids/ upper bass compared to the AQ or SC, and is very slighly rolled-off on the top-end.
The Diamondback is also an excellent sounding interconnect.
It sounds very close to the King Cobra, but is not quite as refined, smooth, spacious, or open as the King Cobra.
There are a couple of areas where it may be slightly better than the King Cobra: Extreme top-end extension, and the width of the soundstage.
But, at the same time, it sounds slightly more veiled, more forward in the mids, less extended in the bass, and less natural, and organic compared to the King Cobra.
The differences between these cables is much more audible in my headphone system, compared to my big rig.
Keep in mind that these comparisons are made using the Marantz SA8001 as a source. I have not tried them with other sources, and therefore the sound of these interconnects may be quite different when using a different digital disc player with them.
Hope this helps!