new year's goodies - mixing NDX+XS2 into 172/200DR/S400

Posted by: catalinmetal on 04 January 2016

hello everybody and a happy new year from Bucharest!

this turning of year brought me some extended listening session with 2 (already) classic Naim products: the NDX and the Nait XS2.

as some of you know, (and is stated into the title of the thread) my own setup consists in 172+200DR+OvatorS400 speakers, with Naca5 cable and Fraim lite.

for starters, i thought to give the NDX and XS2 a short warm-up before getting to some real comparisons and mixes, and i immediately noticed the following (NDX+XS2 vs my own 172/200DR):

- superior step in refinement and resolution: seems the NDX punches way-way above the streamer + DAC existing into 172, and after all, it is no wonder! i enjoyed the textures of the instruments and voices, and particularly the acoustic guitars sounded really really wonderful.

- the whole tonal balance was getting a few degrees warmer. on some albums, this was a treat.

- the sound was slightly fatter/rounder. at this stage, i could not really tell if this is dued more to NDX or XS2.

- the bass control was slightly lacking, even though there was more bass, it was less controlled, not damagingly uncontrolled but anyway, easily spottable

- better separation at "crowded" passages, like on heavy metal records. easily to put the blame into limited capabilities of the DAC inside 172

 

after days passed, i could make the following mixed combos:

1. NDX+XS2+ chord power cables

2. NDX+PS audio AC12 power cable + XS2+ chord power cable

3. NDX+AC12+XS2(as preamp)+chord+NAP200DR+chord

4. NDX+AC12+172(as preamp)+chord+NAP200DR+chord

5. 172(full)+chord+NAP200DR+chord

6.+7. NDX+XS2(or172) as pre+ 200DR with PS audio AC12 at preamp level

8. NDX+chord+XS2 as pre+chord+NAP200DR+AC12

 

some short descrition of the most important differences:

- AC12 power chord seems to have similar effect at all 3 levels, (albeit with slight different amplitudes), it does increase the resolution and precision, and somehow "purifies" the sound making ot "cleaner" or more free of distorsions, BUT, with slight loss of musical flow, not great but easy to sense...

- swapping back and forth from 2 to 3, the 200DR revealed a bigger and more dynamic sound stage, better resolution, BUT, the power amp section of the XS2 is admittedly, more "friendly" , has a rounder/warmer sound, and is more forgiving to bad records, and it has a ease of musical feel that actually made one of my friends visiting to prefer the setup without the added 200DR. i wound say that if performance and neutrality is desired, then the added 200DR makes the thing, if just sheer musicality, the XS2 is a good and fluent performer in itself.

-swapping back/forth from 3 to 4, more tricky comparison, since i think the performance in itself was rather in the same ballpark, but with a slight different character: the XS2 preamp is like it's power amp, rounder in presentation, and has a slight superior musical fluence, while the 172 (as preamp) tends to be more precise, more on the spot, and while feels more solid, is also slightly more inexpresive compared to XS2 preamp. in the end, i preffered the XS2 preamp to 172 preamp, but on sole ground that i found it more pleasant... i will retry this test in the following days, see how it gets...

- from 4 to 5, it was obvious that streamer+DAC inside NDX is way superior to the ones in 172... here no doubts about... does it worth the extra cash? if you have it, it probably does. i am very fussy with sources and the NDX wound have been for a while my companion if i could afford it in a setup that would do it justice (FWIW i think that - let's say a 152/200DR/s400 really starts to bring the goodies out of NDX, since no 152 in this session, a XS2 as preamp will do in the following days)

- probably the best so far combo, to my taste, was no 3... since i will have the NDX and XS2 for the next few days at home i will probably make further comparisons, since i really enjoy having as many Naims in house as possible and swapping between them

- i cound not compare the streamer sections of NDX and 172 since the 172 has no digital out... i haven't compared strictly the DAC sections of NDX and 172, since i do not have at home a BNC to RCA adapter, nor a coax BNC digital cable... but i don't expect weird results on this one, the superiority of the NDX comes from it's better DAC, no doubt.

- also tried some PCM 24/96 files vs the same recording in DSD64... to me the differences are rather of colouration, and not only performance wise... like the DSD record was slightly "sweetened" to make it sound rounder and nicer... after all, most of market's DAC are multibit, so no one really offers pure DSD decoding (which will really assume a 1 bit DAC, or rather, a filter, as also no pure DSD encoding of mixed material actually exists (all mixes are done in high rate PCM, and then back to DSD). we can encounter however pure DSD recordings if some analogue recordings are transferred "as is" onto DSD format. if a mixing stage is involved though, at least one high rate PCM conversion is needed. (so DSD is - for now - rather a gismo to me, we will see in the future how it fairs)

that's it for now, more goodies in the following days! since i will keep the "things" for a few more days...

 

 

Posted on: 08 January 2016 by gary yeowell

Well Cat, sounds like after your chat with Naim you have convinced yourself what you wanted to convince yourself. 

Posted on: 08 January 2016 by catalinmetal

you got it backwards, Gary! i was already convinced, i just wanted to know how honest the Naim folks were. and they passed the test!

@analog: better is better! that some like coloration, ok, some of us like colored glasses... but that's not reality! and i'm curious, besides the NDS and Hugo how many REAL hi-end digital sources you listened to, at home?...(you're not obliged to answer, that was a rhetorical question)

maybe you haven't read well what i wrote, but on the S400, and through the XS2, the difference between the 172 as source and NDX was dangerously small...

source first means an amp below the source, as analog suggests. well, as Richard said, a lower spec'd amp, will require a lower spec'd speaker.

so how on earth will you really hear those tiny differences between digital sources nowadays, with a "blunter" amp and "blunter" speakers?

i don't get it!

Posted on: 08 January 2016 by gary yeowell

You carry on believing that Cat. Upon reading your summary you seem to have gone full circle, you are a man of many contradictions. As they say, to each his own.

Posted on: 08 January 2016 by p.
catalinmetal posted:

 

so how on earth will you really hear those tiny differences between digital sources nowadays, with a "blunter" amp and "blunter" speakers?

i don't get it!

Knowing that the Nait XS by far is not the top of the range amp in the Naim universe, it still allows me (with my speakers in my room) to appreciate every change of analogue and digital source I have ever made - be it cables, PSU, powerlines, mains socket, media player etc.

Posted on: 08 January 2016 by analogmusic

Catalin, to even question Naim honesty after all these years is getting a bit cynical isn't it? 

But anyway Cat, I fully expect sources at this level, HDX, DAC V1, NDX, 172, and the 272 to sound quite similar, and the reason is : they all use the same level of DAC chip. Now I have heard what PS555 does to HDX, but still...

Naim uses the 1704 for their top level sources, and as for Hugo, that is another beast.

I fully hear what my Chord Hugo is capable of, in my car stereo, in my Yamaha HT, on my 202.200, 282.200 and all the way up to 552/500

as for how I hear differences, that is the issue here. 

You hear what you hear, and I can't dispute that, but still knowing what I know today, I would buy the best source, then amp, and spend the remaining cash on speakers.

And somehow, the fact the Naim, Linn, and most forum members have learnt by experience the same thing can't be disputed either.

 

Posted on: 08 January 2016 by dayjay

Hm, I've heard several streamers in my system, and a Hugo with two difference Macs and one PC and the differences were pronounced.  Indeed, it is for that reason I bought my Hugo.

Posted on: 08 January 2016 by catalinmetal

ok... i won't carry on here... seems some have it figured already and the efforts of discovering things on one's own, aren't too good looking...

contradiction was one of the keys to evolution... if man would have sat confy in it's cave, would we have now Naim to listen to?

sometimes, test results can be altered in many ways, the same as our perception... important is to recycle until you fully understand, and why.

Posted on: 08 January 2016 by Adam Zielinski

I've been following this thread for a while. And I have absolutely no idea what is it that you are trying to prove to yourself or anyone.

Looking at it from a bystander's position: there seems to be a theory, which you are now trying to prove by manipulating the evidence. 

At least that is how I see it

Posted on: 08 January 2016 by gary yeowell

Cat, of course you are the only one to have discovered things for himself...... Contradicting oneself even in the same thread, paragraph or sentance is hardly a basis for valued judgements.

Posted on: 08 January 2016 by catalinmetal
Adam Zielinski posted:

Looking at it from a bystander's position: there seems to be a theory, which you are now trying to prove by manipulating the evidence. 

manipulating the evidence?! that's a goodie!

too many detective movies, for you, perhaps?

it was simply a reported situation as i heard it... i am not trying to prove anyone - not on this forum anyway - nothing.

i was just made a sideways reference to source first sindrome: it does not apply everywhere! if you don't like my thread, why read it? and why post here? just skip it! if i trespassed a forum rule, i'm sure Richard would have warned me...not the case, so again, don't like it, please skip it!

Posted on: 08 January 2016 by Innocent Bystander

 

analogmusic posted:

. You hear what you hear, and I can't dispute that, but still knowing what I know today, I would buy the best source, then amp, and spend the remaining cash on speakers.

However a better speaker doesn't necessarily make a system sound worse, And I would contend that one thing important for enjoyment is getting a speaker sounds best to the individual listener - we all have different preferences and different aspects of the sound of music that trigger our enjoyment. Personally, though I may be in a minority here, I would expect to spend more on speakers than the amp.

Of all components, at least above basic budget level, speakers have the greatest influence on the overall character of sound than any other individual item in the reproduction chain. For someone whose satisfaction is provided most by a absolute clarity of midrange, to whom lower bass is a distraction or at least unimportant, the requirements for a speaker are less demanding than for someone to whom music is incomplete and not fully satisfying unless what they hear includes the full frequency spectrum of all instruments at correct relative sound level.

The latter requires bass extension down to the lowest fundamentals in the music they listen to, needing speakers with a response that doesn't fall off att the bottom end (in their listening room), as no amount of improvement of signal input or amplification will provide what the speakers can't reproduce, Unfortunately, speakers with good bass extension that is also well controlled, clean and fast tend to be expensive, meaning that a balance would need to be struck out of any available budget.