NDS - only plays hi-res audio...

Never have seen this. So I can't help you sorry. Best is to contact your dealer.

Thanks Bert - I've never seen this before. Checked the USB - the same.
Upgraded the firmware to the latest version (the unit was manufactured in April 2015) - still the same.

The NDS actually plays only highest res audio - 192 kHZ. Anything below is simply 'muted'.
That's one way of ensuring best possible sound quality

Will take it back to the dealer tomorrow. 

At least I have a new Rega RP10 to play with (arrived in the same shipment today ).

Signing off for the night.

Adam

Hope it get's quickly fixed for you. Always very annoying when you are looking forward to trying out a new thing and it doesn't work, especially when it's something in our field of interest.

Oh well... Such is life.  What really fascinates me is the nature of this peculiar fault within the NDS - is it software related or somehow hardware. My hunch is somewhere in the DSP part.

Are you playing both (high res and CD rips) from the NAS ?

engjoo posted:

Are you playing both (high res and CD rips) from the NAS ?

Yes.

The same tracks play fine in the other rooms via my NDX and SuperUniti.

Have you tried doing a factory reset? This will likely sort it if its just a setting somewhere, although im not aware of any setting that only allows hi res to be played. Worth a try though.

Mr Happy posted:

Have you tried doing a factory reset? This will likely sort it if its just a setting somewhere, although im not aware of any setting that only allows hi res to be played. Worth a try though.

yes - two factory resets performed.  Symptoms remain the same.

Did you find out the cause for this issue? Just curious...

Hi Adam,

I also have never experienced or even heard of this problem before. Would also be very interested to hear how this one is resolved.

I assume there is some kind of testing performed on each black box before it leaves the factory. Maybe such tests on the NDS would not pick up such a weird fault or the fault developed after leaving the factory. It just so happens I am going on the Naim factory tour this Friday so I will see the testing procedures first hand!

As this unit is on loan to you, I am surprised the dealer did not pick this issue up before you took delivery.

I personally very much hope you get this sorted quickly to your satisfaction as it was me that was pushing you towards the NDS as your next upgrade before speakers.

Hope you get it sorted soon.

Best

N

Kevin, Nigel

A test version of the NDS arrived for me today. Will have two weeks to play with it.

The other one is going back to the factory - most likely a fault in the processing board. As to why it failed - only a diagnosis at the HQ will tell. Hopefully someone will be in a position to share this info.

@ Nigel: as you can see I am following your path to enlightement (or is it super luminescence?). One source has already been upgraded - brand new Rega RP10 /Apheta arrived last Friday.

Adam

Glad to hear you have now got a fully-functioning NDS to play with. Let us know what you think.

I have just home-demoed a Super Lumina interconnect (compared to my Sarum Tuned Aray and a loan Sarum Super Aray). I was very impressed with the SL and just as impressed at how the GX300s are transparent enough to show clearly the differences between the ICs. I recon the GX300s are some of the most underrated speakers out there. I am sure they will also demonstrate how wonderful the NDS is in your system. Or are you now using the Ovator 400s in your main system with the NDS?

First listen behind us - it's good, very good! But NDX + XPSDR is not miles off it  NDS + 555PSDR makes the music sound very relaxed and effortles. That's probably the main dofference (for now at least).

And yes - GX300 continue to shine. They do have their distinct sound signature, but continue to deliver all the time.

Nigel - your dealer definitely knows what he's talking about

It sounds very much like the difference between the CDX2 and CDS3. The latter is impressive for being unimpressive, and is just lovely to listen to. 

Hungryhalibut posted:

It sounds very much like the difference between the CDX2 and CDS3. The latter is impressive for being unimpressive, and is just lovely to listen to. 

Well put! 

Interesting, glad you have a functioning NDS now.. I must admit I found the NDS/555PS significantly bettering the NDX/555PS ... I wouldn't have said the NDS was relaxing.. I found it involving.. But we all listen to music differently.. 

However when I owned my CDS3 I did find it relaxing, but ultimately lacking in involvement... I passed it on relatively quickly... After a year or so I found it wasn't for me after all. The CDX2 is a very different beast and strives for entertainment above accuracy..great fun... and my longest surviving  Naim component.

So to my ears the NDX has a very much smaller sonic gamut than the NDS but with many similar traits .. The CDX2 I found was very different to the CDS3 in terms of style and performance where some aspects surpassed theCDS3 but overall the CDS3 was more consistent, but to my ears less engaging and ultimately dull.

To my ears on my 252DR now, my CDX2 native outperforms my NDX native on Redbook by quite a way on some genres, but the NDX is possibly more consistent... However I should disclose I don't really use my NDX in built DAC these days.

Simon

Perhaps - perish the thought - the DAC might be holding the NDX back...... Maybe it's time to do a GraemeH and revisit the nDac with the new firmware. 

Hungryhalibut posted:

Perhaps - perish the thought - the DAC might be holding the NDX back...... Maybe it's time to do a GraemeH and revisit the nDac with the new firmware. 

Oh - I do run another NDX wth nDAX (supercharged by an XPS) - that one resides in the music room. Tricky to compare directly as it's used with a SuperNait2 and Ovators 400.

But - for what it's worth - that combo did sound as good as NDS > 282 / SuperCap / 250. I'm not saying better or worse but as enjoyable. The amount of details extracted from a recording seems to be on the same level.

Adam - my comment was in respect of Simon's observations above. 

Hungryhalibut posted:

Adam - my comment was in respect of Simon's observations above. 

OK

nigelb posted:

... It just so happens I am going on the Naim factory tour this Friday ...

 

Sorry off topic - you must have special powers. I have asked twice, today was told no factory tours for next 6 to 9 months as they are having extensive building work done

robert_h posted:

nigelb posted:

... It just so happens I am going on the Naim factory tour this Friday ...

 

Sorry off topic - you must have special powers. I have asked twice, today was told no factory tours for next 6 to 9 months as they are having extensive building work done

No special powers. This tour was organised in conjunction with Audio T. I luckily saw it mentioned on the Audio T website and got the last place. It will be interesting to see and hear what the new building work is for if indeed it has started yet.

I only find the NDS 'relaxed' in that it is purer and tonally more accurate with more insight into the music which hence reduces strain and fatigue when listening. When asked, the NDS is hugely involving and will smack you round the head (in a good way if you understand) when the music demands it.

Adam, I realise it is difficult to compare as they are in different rooms, but the NDS system should be sounding way superior to the NDX system, not merely as good as each-other. I don't know if it is possible, or indeed if you can be arsed, but I wonder if it might be possible to move the S400s into the NDS system for a listen to see if speakers are indeed limiting things and if the sonic difference of S400s vs GX300s is worthwhile.

Remember bend your knees and keep your back straight when shifting heavy bits of hi fi. 

Nigel - that is my plan - to move Ovators for a week and see how things go. I will report in the findings.

I've also asked my dealer if he can organise a SuperLumina DIN interconnect for me to test.

Adam Zielinski posted:

Nigel - that is my plan - to move Ovators for a week and see how things go. I will report in the findings.

I've also asked my dealer if he can organise a SuperLumina DIN interconnect for me to test.

Good plan. I was going to suggest the SL interconnect but was not sure what the budget was for this next move. Although you may not want to spend the money yet, it might be worthwhile asking the dealer if he can also loan you some SL speaker cables if he has a demo pair. The SL IC, SL speaker cables and 250DR work wonderfully together and you will also hear more of the full potential of the NDS. Just a thought.

Actually, looking at your profile it does mention SuperLumina so you may already have the SL speaker cables installed and you may well have discussed these on here before. If so, apologies.

Looking forward to your findings.