@lanchille,
Thanks! I'm really enjoying the music. The Wireworld Starlight 6 is on it's 2nd day of break-in and the sound continues to change. Anybody who doesn't believe in cable break-in needs to come to my house 
@jaxwired,
I also have a Wireworld Supernova 6 (MacBook Pro---> BDA-1). Terrific cable! Major upgrade to the Bellkin Toslink I had previously been using. I agree that WW is doing something right. I've been so pleased with their stuff in my Bryston system that I am giving serious consideration to putting together a full WW set of cables, interconnects, and power cables.
Thats good news, not that i didnt expect it. A great tell for a system's ability to resolve musical info lies in it's ability to hear significant differences in a coax or xlr digital cables.
If you are hearing differences in coax your system has great resolution. That cable is so far up the chain and close to the source that it's sonic character has to stay true through a bunch of potential component degradations. Including wires amps, speakers and room.
I find the digital cable to be the most influential cable in my system. To test it try using complicated rhythms found in jazz or symphony. I like to use John Scofields "Uber Jam" as a test reference. That recording will screw with your digital coax. You can go from a base cable to a higher end cable and have that recording sound completely different. Almost unrecognizable from a cheapy to a better one like your Wireworld.
This is because cheap cables can not resolve the inner timings and rhythms. It just messes with it so much you lose the beats. And yes there are beats in complicated jazz outside of 4/4 timings. Once you have a system that can resolve the information you need to keep that information intact and nothings wrecks it more than a digital coax or xlr.
Until recently my favorite digital connect was a coax - an Atlas opus in 75 ohm. That cable beat everything including all xlr's i tried. I just recently found a Wywires in xlr that i prefer since it offered better resolution with a great sense of timing. The Atlas still lays down the beats better but not by much. I have a bigger soundstage now and great rhythm
with the Wywire xlr.
So there you have it. Have fun looking at coax now and for a bigger bang go get a BDP and really be blown away by how much a digital cable can have an
affect.