I saw previous threads on the Oppomod, but wanted to share my experience. I have recently aquired a refurbished DS Sr and just modded the 103D with the I2S board. Before the mod, the DS was being fed the USB signal from an Aries Mini where I listen to Tidal, and a digital coax from the Marantz SA8005.
The DS really does very well with the higher res streaming, and the redbook CD’s from the 8005 were better than using the 8005’s preamp outputs. However the digital coax was the limiting factor so I had to try the I2S input.
The first track of a redbook CD from the 103D to the DS was really a treat, the vocals pretty much seperated from the rest of the music in the sense there was nothing in the way. The vocals sounded really good before, but this is a completely different experience. I can see what Paul was saying now on revealing the information on the CD, I have a large library to listen to again. Will keep this updated.
I do want to ask about the Oppo settings. I have the DS showing DSD 64 1 Bit with SACD, but the redbook shows 44.1 PCM with the Oppo output set on DSD. The redbook still sounds amazing, so maybe all is working as it should, but want to be sure I have it set right.
The OPPO does not do SACD over HDMI that works with PSaudio. But there are many cheap boxes that will strip the SACD protection and output I2S. They are all over EBay or Aliexpress for less than $100. I think the one below shows DSD in it. I sold mine a while ago after I ripped all my SACD’s and put on NAS.