DR

Your 250.2 and SC2.

Thanks Nick. Do u know how much Naim charge? I will email them. Thanks again. 

About £1000 for the 250.2.

When I had my SC2 DR'ed I combined it with a service and it cost just over £1600.

Wow, so expensive!! Is the DR a significant improvement?

When I first demo'd a SC2DR against my SC2 I felt the DR version gave more benefit on the 252 than my 282 so I paused on the upgrade. However when I later got a DR power amp, a 300DR, I reappraised the situation and more benefit from the SC2DR on my 282 was evident.  I've found there seems to be some multiplier effect with DR components i.e. the more you have in the system, the greater the sum of the parts.  I found the same with my 555PS on my nDAC, initially preferring the non-DR version and later changing my mind when trying the DR version again after my pre and power had DR. So, I'd say if you're going to DR your 250 then it might make sense to DR your SC as well. If not, I'm not sure the performance benefit of DRing a SC is worth the cost.  

A DR upgrade and service for my NAP300/300PS was £1,850. So around the price of a decent interconnect - and I think a veritable bargain 

Maybe consider a trade-in [with money saved not DR-ing] and an opportunity to trade up to a pre-owned NAP300DR.

But i dunno how much a pre-owned 300 DR would cost from a dealer, or what the trade-in value would be for non-DR 250.2 & SC ?

It maybe an nicer option though : )

Debs

And if you can do listen to a 250DR compared to a 250.2. They are quite different, you might find you don't prefer it. Most on this forum say it's a big 'improvement' and technically it has merit in the new design... but that doesn't mean it will automatically sound  better in your system....  put it this way I have stuck with my 250.2 for the time being.

The powersupplies are similar, but on the whole I have found DR for the NACs always extremely positive on my system.. hugely so, whether it be HiCapDR or SuperCapDR... it transforms the NAC performance. On sources I find DR on the powersupplies varies.. I preferred  an original 555PS on my NDAC, but a 555PSDR on the NDS....

Hi Sundance,

When the DR power amps first came out, Naim did a number of roadshow comparisons between a 250.2, a 250DR and a 300DR in a system with a 272/XPSDR and Sopra 1 speakers.

The 250DR sounded so very much more fleet of foot, presenting music in a much more natural, flowing and coherent way than the 250.2. The 250.2 sounded slow, with a bloated mid-bass hump in comparison.  The 250DR was just so much more musical.

re DR on a Supercap, I have tried it with our 52 but ended up preferring the olive Supercap. However, with a modern black pre amp such as a 282, I suspect that the DR will work much better.

Hope this helps, FT

Thanks for all your useful comments. It is an expensive upgrade considering that I want to purchase an NDX this month ��

Hi FT, I don't think the later 250.2 have this so called mid bass hump... mine is a recent model and has no such mid bass hump.. its very natural and flowing with a nice authoritative presentation with a natural top end sparkle and georgous texture with my 252DR and ATCs .. any bloat or hump would be ruthlessly exposed with my ATCs and I would find totally objectionable..  perhaps the mid hump thing was a trait of some of the earlier models coupled with non DR NACs?? .. I understand the 250DR is more speaker and NAC friendly however than the 250.2. For example I found 202 with the 250.2 slow and cumbersome and quite un appealing, but I understand the 250 DR works far better with the 202.. I haven't heard this mid bass hump at my dealers facility using recent versions either..

The only time I noticed a slight mid bass bloat  was feeding my 282 and before my 202 with non DR powersupplies into my then 200.. but I found the non DR  powersupplies  on the NACs quite a performance short fall.

Hi Simon,
The 250.2 that Mark used in his demonstration was a late model.  

I suspect that you and I process music slightly differently and are sensitive to different aspects of musical reproduction.  Neither is right or wrong, just different.  So what works for one of us may be less appealing to the other.

Long may Naim cater for a broad range of music and listeners' tastes.

Best regards, FT

Having compared 250.2 and 250dr, the Dr version has a much lower noise floor, notes emerge from a silent background.

250 dr also has better extended frequency extremes, particularly with the bass, much punchier and deeper. As if a whole lower octave of bass was added.

for me even though the non dr naps are very good, the newer Dr versions are an improvement on them.

Foot tapper posted:

Hi Simon,
The 250.2 that Mark used in his demonstration was a late model.  

I suspect that you and I process music slightly differently and are sensitive to different aspects of musical reproduction.  Neither is right or wrong, just different.  So what works for one of us may be less appealing to the other.

Long may Naim cater for a broad range of music and listeners' tastes.

Best regards, FT

Indeed - the 250DR is an evolution from  the 250.2 - its just I have never heard this fabled mid bass hump from my Naim 250 - and i know many years back i read about it on other forums with older Naim components and it put me off listening - until when I did it wasn't there!! So I can only assume it appears with certain speakers / combos - thank goodness I have not stumbled across it yet  - as bass bloat is almost as objectionable as treble grit... and I seem to pick up on the most minor imperfections such as low level RFI and  my recent discussion on the PMC Twenty5 series as well as the Focal Sopra 1 in a particular setup.

S

Simon-in-Suffolk posted:

Foot tapper posted:

Hi Simon,
The 250.2 that Mark used in his demonstration was a late model.  

I suspect that you and I process music slightly differently and are sensitive to different aspects of musical reproduction.  Neither is right or wrong, just different.  So what works for one of us may be less appealing to the other.

Long may Naim cater for a broad range of music and listeners' tastes.

Best regards, FT

Indeed - the 250DR is an evolution from  the 250.2 - its just I have never heard this fabled mid bass hump from my Naim 250 - and i know many years back i read about it on other forums with older Naim components and it put me off listening - until when I did it wasn't there!! So I can only assume it appears with certain speakers / combos - thank goodness I have not stumbled across it yet  - as bass bloat is almost as objectionable as treble grit... and I seem to pick up on the most minor imperfections such as low level RFI and  my recent discussion on the PMC Twenty5 series as well as the Focal Sopra 1 in a particular setup.

S

 

Having run a pair of Olive NAP250s active into SBLs for a good fifteen years or so, I never heard the bass hump either. It's frustrating how certain supposedly adverse characteristics of hi-fi kit become set in stone for no good reason other than someone's perception gets propagated because they relentlessly promote their individual experience. 

Yes, I did use a 250.2 for a while in a second system. Never heard the "bass hump" there either.

does  the back plae of the naps states its dr.like-NAP 250 DR.I ASK BECAUSE ON THE NAIM SITE IT IS NOT