Optical Cable recommendations


Does anyone have any optical cable recommendations?
I want to pull the stream from my Blusound Node 2i into my Schiit Gugnier DAC just for giggles. 
I was told by someone at a cable company that most of the glass cables are made by only a couple manufacturers and not much real difference among them. Makes me wonder about some of the expensive optical cables I've seen.  I've tried plastic Tosslink in the last and it didn't cut it. 
Thanks in advance. 
fredcdobbs
I have used different Optical cable from different manufacturers, price ranges, and could never discern a difference.  As with everything, ymmv
It's not your question, but I think the coaxial digital output sounds better on the Node 2i.
The basic blue jeans 1694a digital cable sounds better to me than the sonic wave and Lifatec optical cables I own.


spatialking285 posts11-07-2020 5:49pm"There is a lot of talk about quality of optical fibers but do look at the loss per meter, it is really high, on the order of 10dB or so...."

That loss seems unusually high....

https://www.flukenetworks.com/knowledge-base/simplifiber-pro/loss-budget-calculation-simplifiber-pro
but that used a bnc type connection it is the highest quality optical I’ve used.
Sorry it’s a ST connection not bnc as I stated, used with indexing fluid that was way ahead of anything
https://www.ebay.com.au/itm/High-End-Glass-Fiber-Optical-ST-Interconnect-Wadia-EAD-Audiosynthesis-et...

Cheers George