Streamer vs. CD Transport


I have my Arcam R Play streamer and my Cyrus CD t transport both connected to a Schiit Gungnir Multibit DAC.  The streamer only has an output for a coax connector whereas the transport has provision for both coax and optical cable. Therefore, I have the coax hooking up the streamer and the optical connected to the transport.  I like the sound of both, but the SQ from the Arcam seems to be slightly superior to the SQ of the Cyrus.
My question is, is this due to the inherent superiority of coax technology over optical technology?
Or, is streaming better sounding than CDs?
128x128rvpiano
I meant to only run the transport via coax for a day or two and see if you notice an improvement.
You can then swap it with the optical cable. Kind of an a/b situation.
Another option is to use a cable similar to the Black Cat Silvestar, it has BNC termination with adapter for RCA connection, This way you can plug one of the sources to the Gungnir BNC input. IMHO the BNC is the best Gungnir input.
Regarding the streammer vs CD, I consider the streammer (Allo Digione Signature/Tidal) much more convenient and the sound quality in some cases surpasses the CD transport (Oppo 95). QJA
Interestingly, the Arcam’s digital receptical is a female BNC on which I am using an RCA adaptor. I can use the Silverstar on that and switch the coax to the Cyrus.  Should improve both.