Demo of NAP500 vs NAP500DR
Posted by: Darke Bear on 28 November 2015
I visited my Dealer Signals for a brief demo of the new NAP500DR against the previous non-DR version.
The system was NDS with two 555DR PS with Melco source, Statement S1 Pre, the 500 Amp and a pair of the larger Focal speakers and a full-loom of SL cables.
We began with a brief listen to the system with the new NAP500DR in place and I selected a couple of albums I know well enough to form an opinion. My initial impression was of a rather lighter balanced sound, very clear and detailed, but I was not entirely 'tuned-in' to what it was doing initially.
We then began the Demo proper, with the old non-DR NAP 500:
This immediately gave the sonic signature I was familiar with - a fuller and warmer 'nicer' presentation to my ears, if a little less detailed.
I played a track with a mix of well-recorded, if densely-mixed bass guitar, drums and deep powerful synth lines with female vocals from Mylene Farmer's Anamorphosee album 'L'instant X' which I know well and can be difficult on some systems.
The system did very well but was rather thicker-sounding in the low frequencies that I know is possible in my own Active system, but rather expected.
I also played a very early Sally Oldfied recording (from 'Playing in the Flame' album) which was not a 'HiFi' recording but allowed my to get a view on how the old 500 Amp dealt with more subtle voice ballads. It was very musical and enjoyable and was as I would expect from this level of system.
So now I had my performance 'baseline' of the system in that room with the Focal speakers - and we returned the 500DR to duty and immediately I could hear on the heavier rock-oriented Mylene track that there was a much more dynamic clean and open sound.
For certain reasons we then swapped-out the rather new 500PS feeding the 500DR head unit for the more run-in 500PS (the DR upgrade does not change the power supply 'brawn' box) and that was a huge leap in performance. Gone was any reservation I had over the new 500DR head unit, as its performance with the more run-in power supply was far better.
The bass in particular was deeper and more powerful with better articulation and purity.
I began to hear a performance in the Signals demo room I'd not heard before from a passive system - the spectral purity of the notes in musical chords was such that they had more power for a given volume and involved you far more - things were in sympathetic vibration that were not before in my seat!
Basically more music and less smearing. The sound was engaging and made me want to listen to the music more that the system.
So I think the 500DR is a reasonably significant step-up in performance over the non-DR 500 and worth the upgrade cost, especially for those that are close to needing theirs serviced.
Some perspective:
The size of improvement was nowhere near what changing a 552DR to S1 Pre, but that is a silly-price difference and to be expected. Having this in the system lifts everything a lot.
I would also change the speaker cables to Super Lumina first from what I heard - but the 500DR is in the same range of uplift as the NAC A5 to SL speaker leads.
In conclusion I will get my set of three NAP500 upgraded and serviced in the new year sometime.
DB.
Posted on: 29 November 2015 by Harry
My SL loom cost me £7.7K. The cost of doing the DR upgrade to the 500 would be more appealing but the SL became available first. I think many people will end up doing the DR upgrade at some point so it pretty much comes down to individual choice. Lots of us have the cable side of things already sorted out and a significant slice of that cohort will probably never go SL. So if you lay it all out and my reasoning is not totally off, the DR upgrade looks like the more likely option if you were not planning a cable upgrade in the next few months.
We did lengthy assessments of SL at home and were far from convinced at first. But it panned out in SL's favour after a good 2-3 weeks running. We're having the DR done on spec. We won't be comparing 500 to 500DR unless we fall into the lap of a demo. This is unlikely.
Posted on: 29 November 2015 by Steve J
Sam, it's a cost-benefit assessment as you say. For those who need more than 5m runs of speaker cable the DR upgrade will probably give more bang for the buck but IMO both should be considered for maximum effect. I was lucky only needing 3m runs of SL which I've had for the last 5 months and I'm looking forward to the 500DR with no financial qualms.
Steve
Posted on: 29 November 2015 by sheffieldgraham
Steve makes a valid point regarding the cable length cost vs DR upgrade. If it's more than 5m I think I would go for the DR upgrade first.
Posted on: 29 November 2015 by FangfossFlyer
As regards a 500 upgrade v SL speaker cables:
For me the SL speaker cable home loan was a great experience but at over £5k for 2 x 9m run it is not value for money me at this stage for me. It further showed how good NACA5 really is and that it is real value for money.
So life goes on and my system continues to play some great music!
After saying that I have booked my 500 for a service (wonder if I will need the 500PS serviced as well?) and a DR upgrade which is also c£5k.
I get that feeling that I will eventually not be able to resist the SL cable upgrade (funds permitting that is) just to ensure the further investment in my 500 is maximised.
Richard
Posted on: 29 November 2015 by tonym
For me, the decision to have my 500s DR'd in preference to SL speaker cables is a simple, straightforward one. The 500 is, to my mind, irreplaceable in my system, whereas there are many options regarding speaker cable. The upgrade/service on my 500s is quite a bit cheaper than the runs of SL I'd need. So, an easy decision.
I'm reaching the end of upgrading my system for the foreseeable future. It sounds pretty wonderful (even with those dreadful NACA5s) & I wouldn't be getting the DR upgrades if it wasn't for the fact the amps will be due for an overhaul anyway.
Posted on: 29 November 2015 by dave marshall
Originally Posted by FangfossFlyer:
For me the SL speaker cable home loan was a great experience but at over £5k for 2 x 9m run it is not value for money me at this stage for me. It further showed how good NACA5 really is and that it is real value for money.
Richard
Suggest a look on the Fishy thing, last updated 27.11.15
Dave.
Posted on: 29 November 2015 by SamS
Happy to read that the consensus thus far seems to point to the 500 DR upgrade as preferable to the SL speaker cable upgrade and that the improvements it brings will likely not be lost on those sticking with NACA5.
Now, where did I put that piggy bank!
Posted on: 29 November 2015 by Allante93
Good stuff, as usual DB!
But correct me if I'm wrong, didn't Naim release the SL Technology before the DR Amp Technology?
I agree if one purchasing a Naim System Today, the proper sequence would be to DR the front and rear end, followed by SL Source Interconnect then SL Interconnect from Pre to Amp, and last complete the full loom with SL Speaker Cables.
Note, sequence in an Active system adjusted with Snaxo SL cable.
Also an advantage PXing 5 year warranty, but at a cost.
Wells, just my two cents, the arm chair quaterback.
Posted on: 29 November 2015 by sheffieldgraham
I think the SL and DR technology were developed together in the making of the Statement. The NA009 transistor certainly was.
Allant93, any reason for the large spacing of your post. A bit waste full really.
Posted on: 29 November 2015 by Allante93
DB has already pointed out from his experience, once the front and rear end has been DRed, his sequence would be SL Source Cable, followed by SL Speaker Cables, then SL Pre to Amp cable, reason being Nac A5 doesn't like SL Interconnect.
Posted on: 29 November 2015 by ken c
Originally Posted by Chris Dolan:
The SH price really has to anticipate the cost of the upgrade.
yes, exactly...
enjoy
ken
Posted on: 29 November 2015 by Darke Bear
The SL cables first emerged in January for the interconnects and then the SL speaker cables a few months later, but the DR Power Amps have not been available before then - unless I really missed something last year!
Don't get me wrong, it is a personal choice that for me the SL speaker leads, in my system, was so much better than the NAC A5 that it was worth the cost of three 7m runs Active. It imparts a clarity in timing and drastic reduction in colouration that transformed my system's performance - but I got a demo first (thanks to Graham) and that made it easy.
I think there is still a view in Naim circles that expensive connectors everywhere but on the longest run to the speakers is OK, probably down to years of conditioning that NAC A5 was good enough and that improvements upstream somehow 'pushed-through' any problems with the NAC A5. Untill the DR tech with the Pre and source supplies the overall performance envelope probably justified that approach I think.
But as everything else has been improved, the NAC A5 became the bottleneck for performance - in the context of my system - is what I heard.
I think people are happier spending money on a box rather than a wire, even if the wire would give them more performance for the same spend. I was not 'happy' that the SL speaker leads were so expensive, but in the context of my system they worked so well it was a no-brainer upgrade.
The DR 500 does different things alongside the improvements in clarity, so I think it will work ok with NAC A5, but would advise a demo to confirm all is well for what you want to achieve. My view is the SL speaker leads did more than the DR500 in terms of clarity, sense of presence and low-frequency purity of notes and tunefulness, but the DR500 did more in terms of overall confidence and grip on the performance and dynamic linearity. Combining the two will be best I think.
Certainly the idea of trying a less-expensive speaker lead upgrade from the NAC A5 combined with the DR500 may give the best results when funds are restricted, but a demo or home trial would be really needed, as it would for the SL speaker leads.
All personally subjective!
The aim of the thread is to discuss views and posit what may be worth considering.
DB.
Posted on: 29 November 2015 by Allante93
Sorry Graham on the large spacing, but texting from bed, not in the office where I can use quote box.
Posted on: 29 November 2015 by ken c
Originally Posted by Darke Bear:
It is not that the old 500 was forgiving - I never actually said that, as run Active they need a lot of care to sing right I have found. Nothing 'special', just dressing the cables right and the usual stuff -
i probably read too much into what you said. in my system, cables are all dressed properly etc etc -- i thought you were suggesting that one will need to do more on top of that, but i guess you are not saying that... silly me...
enjoy
ken
Posted on: 29 November 2015 by Darke Bear
Originally Posted by tonym:
For me, the decision to have my 500s DR'd in preference to SL speaker cables is a simple, straightforward one. The 500 is, to my mind, irreplaceable in my system, whereas there are many options regarding speaker cable. The upgrade/service on my 500s is quite a bit cheaper than the runs of SL I'd need. So, an easy decision.
I'm reaching the end of upgrading my system for the foreseeable future. It sounds pretty wonderful (even with those dreadful NACA5s) & I wouldn't be getting the DR upgrades if it wasn't for the fact the amps will be due for an overhaul anyway.
In your position Tony I would do exactly the same for the reasons that you state.
What may be worth looking at, rather than the SL speaker leads, are some of the less expensive leads being discussed on other threads. In your system I think that will offer you a lot - but I share your pain in running Active and considering speaker lead changes! 
DB.
Posted on: 29 November 2015 by ken c
Originally Posted by SamS:
I suppose the choice between SL speaker cable vs. 500 DR upgrade will be a difficult one to pin down without a home dem of both for comparison. The cost of each is roughly the same, dependant of course on cable length required. So if one didn't exactly have £3.5 - £4.5K burning a hole in their pocket and could only go for one upgrade for the foreseeable future, which would it be?
Not having heard either (other than the SL cable as part of an S series pre/power dem - so not much to draw from really) my heart says the 500 DR. I suspect opinion may be divided, and based on individual systems, rooms, preference etc. Or is their a clear winner.
well put Sam. i have limited experience of the SL (only having the SL IC) and of the DR only via the other DR upgrades in my systems (of course, minus NAP500).
from that, and from what i hav read here from various posts, it seems that the SL cable brings a new level of clarity and articulation, detail and "believabiliy" across the freq spectrum. The DR upgrade lowers the noise floor very signiicantly and therefore allows the extra level of detail from the SL to be much more apparent. Just my view of course.
enjoy
ken
Posted on: 29 November 2015 by Steve J
Originally Posted by Darke Bear:
Originally Posted by tonym:
For me, the decision to have my 500s DR'd in preference to SL speaker cables is a simple, straightforward one. The 500 is, to my mind, irreplaceable in my system, whereas there are many options regarding speaker cable. The upgrade/service on my 500s is quite a bit cheaper than the runs of SL I'd need. So, an easy decision.
I'm reaching the end of upgrading my system for the foreseeable future. It sounds pretty wonderful (even with those dreadful NACA5s) & I wouldn't be getting the DR upgrades if it wasn't for the fact the amps will be due for an overhaul anyway.
In your position Tony I would do exactly the same for the reasons that you state.
What may be worth looking at, rather than the SL speaker leads, are some of the less expensive leads being discussed on other threads. In your system I think that will offer you a lot - but I share your pain in running Active and considering speaker lead changes! 
DB.
DB and Tony,
You could save a fortune and do a Jeremy Corbyn - become a 'pacifist'! 
Seriously though Tony I can understand where you're coming from. It's easy to become enticed every time there is a new bit of kit or upgrade but if your system sounds good to you, and I've had the pleasure to listen to it, the SQ won't deteriorate if you don't succumb. Just don't do any home demos of the SL speaker cable. 
ATB
Steve
Posted on: 29 November 2015 by Allante93
""Correct me if I wrong, but Didn't Naim release the SL technology before the DR Amp technology?""
English wasn't my major, I was trying to use an rhetorical question to produce a responce, I guess it worked!
Thanks for the post everyone was waiting for!
I will close with a quote from an Audio Reviewer:
""There are only two types of hi fi gear worth owning, the best, and very close to the best for a lot less $!!!""
All you lucky Naimee's enjoy your gear !!!!
Posted on: 29 November 2015 by Allante93
Originally posted by Sherrfieldgraham:
"""53 minutes ago
I think the SL and DR technology were developed together in the making of the Statement. The NA009 transistor certainly was.
Allant93, any reason for the large spacing of your post. A bit waste full really.""
I agree, we are just getting the goodies as they are released down the road, and again I do apoligize for the spacing!
Posted on: 29 November 2015 by Steve J
Allante,
What are you on? 
Posted on: 29 November 2015 by Allante93
Funny Steven, On that note I'm out!
Posted on: 29 November 2015 by Steve J

Enjoy whatever you're doing.
Posted on: 29 November 2015 by analogmusic
On the review of the 250DR on "the ear" website, Steve Sells, Statement designer has been directly quoted as saying the the DR amps do not require NACA5 or SL cables, they are cable tolerant.
This applies to the 250.2/300/500 amps also. BUT not the olive or CB amps.
It would be nice of Steve Sells to confirm if this 100 % accurate.
Posted on: 29 November 2015 by SamS
Originally Posted by ken c:
.....
from that, and from what i hav read here from various posts, it seems that the SL cable brings a new level of clarity and articulation, detail and "believabiliy" across the freq spectrum. The DR upgrade lowers the noise floor very signiicantly and therefore allows the extra level of detail from the SL to be much more apparent. Just my view of course.
enjoy
ken
This makes alot of sense Ken, and chimes with DB's view on the synergy of both upgrades. I will hopefully have a dem of both in the New Year but am also very much hoping the DR alone will be a pleasing enough upgrade for the time being, as not only do I need a bigger piggy bank for both, but also a construction crew as most of my current NACA5 is under the floor and in the wall. That is a tough one to get past the Mrs unnoticed. The DR upgrade is childs play.
Posted on: 29 November 2015 by DavidDever
Originally Posted by analogmusic:
On the review of the 250DR on "the ear" website, Steve Sells, Statement designer has been directly quoted as saying the the DR amps do not require NACA5 or SL cables, they are cable tolerant.
This applies to the 250.2/300/500 amps also. BUT not the olive or CB amps.
It would be nice of Steve Sells to confirm if this 100 % accurate.
That would make sense - and makes an early 250.2 / 300 / 500 with DR upgrade very good value for money.