SPDIF3 is a very good improvement to R1N. Soundstage and blacklevel is improved since the SPDIF2 in general.I use a Matrix SPDIF 3 from my computer in my office to connect to everything on my desk. I still have not been able to tell if I personally can hear the differences between having a device like that or not but I like it. It makes things easier.
I assume the SPDIF3 should be obvious improvement to the R28 since it has R1 dac stage. Maybe not the same as R1N. Digital section is maybe better on the R1
The music is more collected with that DDC(vs no DDC). I miss it actually. It is very pure. I would recommend the Matrix SPDIF3 together with a cheap usb cable over an expensive USB cable. I am going to own it again.
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The first undeniably improvement is the soundstage that opens up in width. Clear black background(not as textured/thick as DI20HE)….and the unforgiving speed/transients. Feels like the R1 is on steroids
A top DDC imo for very cheap money vs performance.
My chain was
PF USB Bridge V2-USB(cheap, some more expensive) - SPDIF3 —> PF I2S Cable -> R1N
I2S cable is preference can also be cheap imo, but the PF just adds the cream flavour, liquidy smoothness
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