I was only covering the non-NC stuff.
Here’s 110db on the topic
Look at the internals.
NPX300 has a number of DR regulators.
Thanks guys, get it now.
I was only looking around the forum to try and find a post from 110db about the regulation in the bare NAC332, as I wasn’t sure if that was DR vs some other regulator scheme, can’t find the post I thought I recalled so far!
…here’s a post from Richard on the topic
Edit 2, and one from Steve Harris
The NPX300 has eight DR regulators, and they are also in the new 250 and 350. I’m not sure about the 222, 333 and 332 though; I presume not.
The same principles apply to NC.
Look at the internal PSU of the 222…does it look very similar to the PCB in an ND5XS2, for instance?
Add the 300NPX to get fully regulated DR rails.
Of course there are other improved approaches within NC, before anyone says.
Naim website says that the 222 has DR
Here are some internal photos of the NC 300 series by @110dB:
Only “Linear PSU regulators” are mentioned in NAC 332 and NSS 333, in contrast to NAP 350 which explicitly states “DR PSU”.
No…
…to this day however.
With all due respect to Dr , it’s no longer new and probably just seen as a std part now in new Naim , no need to advertise ,it is after all over 10 year old development
Fair point. By now, naim should be fitting it as standard.
Yes.
Rather like my car model name doesn’t include a little i at the end, even though it has fuel injection
The answers are on the forum.
The NSS222, 332 and 333 have a “linear PSU regulation” board, under other boards so not immediately visible on photos.
As naim explain on linked posts this regulation is not DR, it’s previously used (but reliable/tuned/understood) tech.
Whether the 222 has a single DR regulator for pre amp only, like the SN3 does, I don’t know.
But to get DR regulation on all power rails on NC devices you need the NPX300.
From a marketing perspective this makes sense. If the 333 (for example) had 8 internal DR regulator boards there would be no point/uplift in adding a 300 NPX!
Looking at a picture of my Supercap Dr, the part that does the NAPSC equivalent
has DR regulation.
That’s correct, the SuperCap DR outputs 2x12V DR on the digital interconnect.
I wouldn’t say it was quite as simple as that. It’s a bit like saying you don’t need a Hicap if you’ve got a 200DR because the preamp power supply in the 200 then provides DR power. Putting the power supply in its own box gives it physical isolation from sensitive electronics, and allows it to be substantially beefed up given all that extra space available.
My comment was slightly exaggerated, the point was there are comments above that surely DR is now standard and automatically in all devices.
Not the case.
If naim can, and feel it appropriate to dr the SC equivalent of a NAPSC, then anyting is possible.
Thankyou for the insightful responses, I can see a vague pattern emerging about DR inclusion in some Naim products.
In seems that DR ‘may’ be included in products launched after 2012: most power amps, optional “pre-amp power supplies”, and some Supernaits.
Seems that the “Nait 50” misses out on DR, but the information on Statements hints that DR principals were included in it’s design.
There was an earlier Naim announcement that DR upgrades were no longer being made available, owing to supply constraints, so was pondering if Naim was on the cusp of some technology changes on this aspect, particularly as DR has been available since 2012.
DR regulation is a trickle-down from the Statement project, as are Super Lumina cables.
DR upgrades were initially stopped due to supply shortages, and then made permanent, as people had had many years in which to do the upgrade, allowing Naim to focus on new production. They may well be working on new developments, such is the nature of R&D.