From supernait1 hicap to 282 250.2

My source is ndx , it’s said 282 and 250.2 is another level. 

I donot feel the big difference.

is there something wrong?

Assuming all the cables are the original Naim supplied cables and the units are not stacked directly but each on their own shelves, I would suggest that you run it for a week or so to get used to it. Then switch back to your SN1/HC and see if you feel like you downgraded or not. That generally works much better than AB comparisons.

The age of the units also matters. Both the 282 and 250.2 could be old enough to be in dire need of a service and recap. As could your HC itself. You've not mentioned the service history of the units.

Yes,the pre and other units are stacked directly,the power is on the side alone,all the units i guess were produced in year 2012,and not recaped.

And all cables are original.

i will set the unit alone,not stacked directly.

thank you FZ

OK8888,

As I am sure you expect, the 282/Hicap, 250.2 should take you further into the music than your (still, quite good) Supernait.  This should be so even when cold, and then improve further in the following week or so.  Since, you are not reporting an improvement - again as you likely expect - something must be wrong with the setup.  If you have a local dealer, he/she could surely help.  Lacking that, perhaps you can post a photo?   Equipment at this level needs proper rack, placement, cable routing, clean power.

Charlie

ok8888 posted:

...,all the units i guess were produced in year 2012,and not recapped.

2012 units will not need servicing or recapping yet. They should still be in their prime. However, if you want to be 100% sure, Naim support will tell your the production dates of the units if you email them with the serial numbers.

FWIW, Naim units hate to be stacked. The 282 will not want to be anywhere near the 250 or HC. If you can get them on a rack, try the 282 on top, NDX, HC (on the right), followed by the 250. Naim put the transformers in the NDX and 250 on the right so putting the HC on the right side of a rack shelf will ensure it's transformer is not directly under or over analogue circuits in the NDX or 250.

Good luck! 

Thank you everybody.i will try everything you mentioned,check out to find what i missed

The source might limit ?

Not sure a 250.2/HC/282 based setup with medium source is so much better than SN2/HC based, apart from beeing more powerfull

I think sometimes our expectations after an upgrade are very high especially when we have strived for, saved up for and waited a long time for and after we have been reading forum hype 'my jaw just hit the floor', ' it was night & day' the reality can feel like a disppointment.  

Some of us do not have the hearing of others and simply cannot hear the sometimes small improvements after an upgrade and the true audiophiles amongst us are only looking for those small improvements to begin with.

Put those boxes on a rack OK888 and you will hear more of a difference.

Perol posted:

The source might limit ?

Not sure a 250.2/HC/282 based setup with medium source is so much better than SN2/HC based, apart from beeing more powerfull

 

Sorry now seeing it was SN1

My source is ndx，it’s great although the screen is dark.

i have a 282/HCDR fed by bare NDX and the music comes through superbly, OK i moved from 200 to 300 but an NDX/282/hc/250.2 should still work really well together

concerned on the dark screen on NDX? does it have any display? what are you lisening to UPnP or IRADIO or streaming?

Ndx should shine through a 282/HC/250

Do as others suggest and put on a rack and let settle for a few days ..then swop back ... think you will be supprised by the change you " didn't notice"

I suppose one thing that has been overlooked is to ask what the NDX is used for. Is it mainly being used for streaming lossless ripped media and Tidal? Or is it being used to mainly stream Spotify and stuff bought off iTunes?

If the former, then the new equipment should shine. If the latter, then the new equipment is likely to show the deficiencies of the formats and sound worse.

I think we all assumed lossless streaming but it never hurts to ask.

antony d posted:

i have a 282/HCDR fed by bare NDX and the music comes through superbly, OK i moved from 200 to 300 but an NDX/282/hc/250.2 should still work really well together

concerned on the dark screen on NDX? does it have any display? what are you lisening to UPnP or IRADIO or streaming?

 

The ndx’s screen should be down in 5 or 6 years,my ndx’s have got dark over one year,i mainly with Upnp on synology 212j,a little just naim choice radios. 

The NDX (+ NDS & ND5) screens will fade & darken if you leave them on.  They have a programmable screen on time limit setting in "tools",  I have mine set for 30 secs.  And TBH the display is a bit not required if you use a tablet or phone as the control point.  Its only needed for navigating around the settings,  but how to do that with a dead screen ???   hmmm tricky.        

My ndx’s screen doesn’t light again,but this do not prevent  me from operating the ndx by iphone or ipad.

There are some settings that can only be accessed via the remote control and front panel display, so having it not working isn’t ideal. Also useful in emergencies if your iPhone dies!

You say yours has failed after only one year? You should be able to get it fixed ynder warranty. 

No it’s failed over a years,I bought ndx maybe 6 years ago.

ok8888 posted:

No it’s failed over a years,I bought ndx maybe 6 years ago.

Understood! May still be worth asking your dealer about it, as it was mentioned here that some early displays were defective. Naim can replace it, just a question of whether or not they will charge you. 

ok8888 posted:

My source is ndx , it’s said 282 and 250.2 is another level. 

I donot feel the big difference.

is there something wrong?

I'm not surprised,  the Supernait is a pretty good amp,  IMO the best integrated that Naim have ever made & it was not bettered by its wam bam thank you mam cost reduced SN2 successor.    The Supernait is an active line-level preamp & its circuit design is reported to be derived from the NAC-552.   So on that basis the pre-amp section is going to be hard to beat.    The 250.2 however is something else & I am sure will outperform the power section of the Supernait by some margin, but you probably won't hear that unless the volume is up very high or your speakers are a difficult load,  which I don't believe the PCM OB1i are.    

Back when I was running Naim Dac / XPS2/ SN2/HiCap2, I did an experiment and brought home a 282 and 250.2.  I brought them back to my dealer; I didn't really hear much of an "improvement."  Fast forward, my 252/SuperCapDR/250DR is miles ahead of that SN2 kit.

Just my experience..

Just say sn1+hicap2 compare with 282. 250.2 presentations not days and nights.sn1 suits present a stronger with powerful but 282 250.2 give you a soft and a little fine music.

if sn1 could shows a softer sound,that could be fine.

maybe the sn1 and 282 250.2 come with very different speaker,and they could give a good presentation.

PMc stand-speaker donot come with naim’s middle range power.

anyway sn1 is a good integrated amplifier.

OK8888, the PMC OB1's might be your weak point and not up to showing the quality of your electronics. Not what you would like to hear I'm sure. They have been around for a long time now and I demo-ed a pair years ago only to be disappointed. I hope I am wrong but something to think about.

Dave

ChrisSU posted:

There are some settings that can only be accessed via the remote control and front panel display, so having it not working isn’t ideal. Also useful in emergencies if your iPhone dies!

You say yours has failed after only one year? You should be able to get it fixed ynder warranty. 

So it can only be used with an iPhone? I'm put off straight away.

May I ask does naim amp not match pmc stand speaker?

i read on this forum there are so many friends have naim-pmc ,they are very happy with them.

i also heard that pmc should with bryston,the bryston amp can make pmc 

very best.

what do you think?

thanks