Mine is 202/200/HCDR and NAPSC. I think it’s nothing to the point. I stand by my original comments. If you can’t hear a clear difference between DIN and RCA then there is likely something amiss. I have periodically experimented with all manner of cables and heard numerous Naim systems over the past 30 years. I don’t consider myself to have especially great hearing but the difference between the two is distinct.
That is interesting. Could you elaborate more on that part (or post a link where it has been discussed and explained)?
What do you mean by not correctly grounded? Does this affect safety or the sound quality of the system?
Thanks!
I will try the comparison at some point, just for the sake of it.
Interestingly, when i was shopping for an interconnect to put in between my ND5XS2 and Chord DAC, i spoke to 3 different Naim dealers who told me that it does not matter and that they also demo their stuff with some (albeit selected) RCA cables. Two of them were especially wary of the lavender cable and told me that technology has evolved since then and there are far better cables around at that price point.
So for what it’s worth the only way to find out is to listen by yourself.
Dealers have many and varied views. Some on the record and some clearly off. My dealer told me the Mogami was the best cable he’d ever heard but for me it was an engagement killer. Recessed and clinical rather than musical and engaging. I’ve had a hi-line for years. When it broke I reverted to the lavender and messed around with Chord and Tellerium cables. The lavender beat them easily. It’s a hugely underrated cable.
I’ve actually sat in a Naim demo where they were asked to show the difference between RCA and DIN. They had no hesitation.
This is about the Signal Ground - not Mains Safety Grounding.
So… its about Sound Quality - and not Safety.
There’s a better explanation in the forum FAQ, here:
We are talking here about the signal ground, not the safety earth.
Listened with RCA again this morning - big difference, it sounds much better. This Mogami 2308 is just much better than regular interconnect I guess. Will try with another DIN cable later, but Mogami stays
If 272 and CDX2 had XLR outputs, I think it would be the perfect combination with my active ATCs, stopping further investigations.
But the real pleasure is not the final result, is the process )
It’s not as if XLR in itself was perfect. The investigation stops where units have only one choice, I guess 
As far as I know, Mogami stopped 2803 production due to high production costs and complicated technology of copper purification used in it
More on Mogami 2803 from the net
Mogami 2803 has been evaluated as the world’s highest resolution and rich detailed cable on the market.
It’s made to improve resolution to the utmost limit. This cable works well for a vivid original sound image, without any colouration to the signal.
Sounding very much like Snake Oil to me.
Sorry… 
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never tried it - will do ))
BTW i like very much Kudos - I see you have them in your system. if I didn’t have my ATCs it would be my choice, but going active was my decision.
There is a sliding switch on the back of the 272 offering the choice of chassis or floating, if you are using the CDX2 with a DIN interconnect this should be set to floating or the sound will suffer, it will also suffer if you have both RCA and DIN inputs selected and even possibly if you leave he DIN and RCA cables in place and just switch the choice.
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you mean I need to change it each time I use CD/Streamer option?
Floating with CD and Chassis when using the streamer?
No, Set it to floating when the CD player is connected as the CD player is providing the signal earth for the entire system and there should be only one. If you leave the CD player in place there’s no need to keep switching it. I don’t know what happens to signal earth when the RCA interconnect is used, you might try both setting snd listen for a difference.
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Switching to floating dramatically improved the DIN sound quality actually. It’s night and day. Sounds even better now than Mogami I think. Will try to listen few days and will get back. Thanks
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Streaming quality is also improved…
So I guess it was the problem - switching to floating …
Have to read again operating instructions…
I did not use my system for a while these past years…rediscovering it now.
Thanks again for the help!