@mgsu
Your idea with the Su6 and optical input is actually not stupid at all.
Since everything first goes through the Su6 before it goes to the R26.
This can have advantages that I hadn't thought about.
Advantages like noise and jitter would be eliminated as soon as they leave the Su6.
@m-i-c-k-e-y thanks for translating the manual.
Yeah, i used LAN and i2s before optical but after i watched a video from Rob Watts about the benefits of optical, i thought i give it a shot and what can i say, optical in my setup is better that LAN and i2s.
I must mention that my setup consists of:
SU-6 DDC -> optical -> R26
Roon Core -> sfp to optical -> SOTM sNH-10G
Internet Modem -> sfp to optical -> SOTM SNH-10G
LHY OCK 2-> Gustard C2 -> R26
LHY OCK 2 -> Gustard C2 -> SOTM sNH-10G
To summ up, all connections are full optical, from the internet modem into the SOTM switch and from DDC into the DAC, no copper wire at all besides the Gustard C2 50 Ohm BNC cables.
Optical into R26 makes a difference, it is not night and day but imo it is better than i2s and LAN.
Side note: i am doing only 2x oversampling because the mosfets of a R2R DAC can not keep up with the fast switching of a multitude of oversampling and can cause distortion.
16x oversampling has not benefits to me also from a logic standpoint. As an analogy imagine you have a picture with 48 pixels. By blowing the picture up to 768 pixels does not help with recognizing more details in the picture at all.