Are there differing qualities of optical cable?


I currently have my Gungnir Multibit DAC connected by optical cable to my Oppo player which I use as a transport. I also have a Cardas coax cable connected to a different input.  The optical sounds better. My question is, are there different qualities of optical cable you can use, or is one the same as the other?
128x128rvpiano
Willemj:

So you evidently believe that the differences I, and others hear, is imaginary.
The objective listening of listeners to various cables is real.
Obviously the testing instruments are not capable of picking up the kinds of differences people hear.
These tests are useless and hence, worthless!
Blind faith in current scientific methodology leaves no room for discovery.

And Blind Faith Live in Hyde Park June 7, 1969 SBD London, England is definitely worth listening too :)


@rvpiano  Any reason why you didn't try the DH Labs Glass Master Toslink? Might have been an interesting comparison between house cables (vs. your DH Labs Silver Sonic coax cable).
I got the glass cable before I heard of DH Labs or I would have.
(Still can I guess.)