Thanks! Yes for sure, I’m all in with the ND555 now with the 2 ps supporting it and the cdp as a piece of furniture.
I will try experiments in a few months when I have a good grasp on the ND. Just thinking ahead…Also in terms of « capital allocation » maybe better grab a core and sell the cdp…
Yes also what I expect, but not yet there…
Hi Michael, how long did it take for you to be impressed? Just want to have an idea…
Hi Yeti, yes for sure optimizing the ND is taking 100% of my weekend now. What are the key milestones for burn in, in your opinion?
Don’t you hear the advantages of a good cd played on a great cd player such as a CD555?
I have a ND555 + 2x555PS DR and a CDS2+555 DR, what can I say… the cd is more clear,
more silent in between, more precise, the streamer is more smeared, less tension, less grip.
That’s in a UnitiCore + Chord Sarum T ethernet cable environment…
Maybe it’s only in Classical Music and Jazz but I don’t know, the cd is not boring and the streamer is
boring, sometimes. It’s all sound like the same recording through the streamer.
Just use one PS on each unit. Otherwise you risk compromising both as stated by Naim. The only advantage to having two PS units on one head unit is that each has a lighter load when half used. Having them fully connected to two different head units negates that and introduces a possible issue, so most likely a backward step.
Sorry for the hijack, I can’t quite get my head around why having a CD555 with 2x PS and an ND555 with 2x PS would be a problem. Surely Naim would consider someone might have a high end streamer and their high end CD player. Maybe less relevant now with the ND555 vs the NDS but around the time of the NDS I believe people may have wanted to have both units…
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There is no problem
As long as £28k in power supplies is no problem
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The CD555 and CDS3 got a pacific micro Sonics filter (not made anymore)
The ND555 got the naim filter
So maybe they do sound different…
Maybe I missed what was being suggested above then as it seemed to me that 4x PS555DR’s powering ND555 and CD555 was considered a no go…
I read the original question as could a pair of 555PS to power both, so take a Burndy from each of the power supplies to the CD555, and another pair of Burndies to the ND555 from the other halves of the 555PS.
I’m sure Naim would be delighted to have a cusomer with CD555, ND555 and 4 * 555PS. 
Ahhhhh! Thanks for the clarity! I would never have thought someone would do that tbh! I can see now the problem with that setup!!
Burn in started a bit harsh which faded after a day or two, there was then a two steps forward one step back period which became less noticeable as time went by. Full burn in was about 6 months, you’ll think its over before then but it just keeps improving.
I have a home made linear power block with chained single MK sockets, after much experimentation I’ve arrived at, from the input lead, 555ps, turntable ps, supercap (for superline), 552ps, DVD5, 500ps. I was quite surprised that the 500 ended up last but it gave a good increase in scale there as opposed to earlier on the block, the 555ps was always best in the first socket. The TTps migrated from the last socket to second at the suggestion of my dealer, he was right too. The DVD5 is SPdif to the ND555, it hardly gets used but isn’t entirely redundant. Other power blocks may well lead to a different order judging by some of the posts I’ve read but most use double MKs or boutique blocks like the MusicFirst with its ring for L and N and (unequal length) star earthing.
It really only took a month I guess… I just never used the CD555 so rather than gathering dust I recouped some of the cost of the ND555 by selling the CD player.
I would have maybe agreed partly with you here, but not since I have acquired a Melco D100 to rip my CDs … all level of digital hash seems to have disappeared and my rips now have that clear sound with an inky black background that you describe.
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Cd555 will be a classic in next 10 years, iconic item, maybe:)
Hi Richard, thanks! I will not worry about this now anymore, and finish tuning the setup of my nd555!
To the point about keeping the cdp as a classic…Doesn’t it make more sense to have a “core”, so that for whatever cds you want to hear you can benefit from the nd 555 superior dac? Has anyone compared a cd through cdp555 vs the same cd through core (as transport) & nd555 as dac?
Uniti Core as a transport is not as good as ND555 as a transport (getting a file from the Uniti Core via Ethernet connection).