Lots of content so apologies
Background
First thing to say is I’ve never been a hi fi hobbyist, nor have I wanted a separate listening room. My aim has always been to have music in the main living areas, but the best sound I could afford. I’m also a bot of a hoarder ( I still have my original Pioneer sx450 along with around 4 or 5 yamaha and Denon av receivers stored in the barn along with various ‘cheap’ av speakers). Record playing path was Murphy valve amp radiogram (Mono), Bush music centre, Pioneerpl12d/Sansui AU 101/Whardfedale Linton, later Technics and Denon took over but PL12D stayed until -
Started the Naim journey in the 80’s with a Nait2, RP3/nagoaka boron(after a shure 95and ortofon vms20E) and a set of Kans. Also attached a Nakamichi oms 1e and a cd1, tuner was Technics then Denon. All new at time of purchase.
I then came across a nait5i somewhere along the way which went into the bedroom with a tuner.
Moving on, in 2008 I picked up a previously owned nap150/Nac 112 with a set of Rogers ls3.5a’s for a separate room. I put a sqbox duet and a denon tuner with this. It didn’t sound that much better than the Nait and Kan’s so I found a flatcap2 up for sale locally. That was the first big difference I noted with an upgrade. The 112/150 was ordinary without it, with the fc2 it came alive. Impressed I decided that the 112/150 might benefit from a service. Both went back to Naim in 2009 and had complete cap replacements. Doubly impressed when they came back I started looking for a speaker with more depth in the bass. I demoed various and was impressed with the Spendor A5 bass, both its ‘throw’ and tightness. You could feel the vibration in your chest, not through the floor continuing to vibrate long after the music had moved on. Happy with this set up the Nait and the 112 combo moved around with me in various homes.
2013 I moved out to France where I now live. More rooms to fill with music and one room being a reasonable volume, I decided to get a 202/200 combo and an fc2, to drive the Spendors in the larger room and move the 112 combo to a smaller TV room with the unused for a while ls3/5a’s. It didn’t give me the improvement I had expected, no WOW, just a small improvement across everywhere which added up, but --, so the 202/200 went in to the TV room where they worked well with the ls3/5a’s, and the 112 combo stayed with the Spendors in the larger room. The Nait2 and the Kans went back to base for service and rebuild. Three years ago I bought a new RP3/Denton DL110 for the main room, and refurbed the original RP3 with new caps and new motor for the Nait in the study.
So a couple of weeks ago when I came on here asking about upgrades I had:-
All rooms sqbox feed through CA Azure DAC.
Main room: 10.8m x 2.9m x 2.8m tall with with hard tiled floors and a full width rear glass window, plus the usual furnishings:-
112/15/fc2, spendorA5, Rp3/DL110/Nad PP3
TV room: 2.8 X 3.1 X 2.8m tall:- hard tiled cramped with av and stereo
202/200/FC2, ls3/5a
Study: size as TV:- Hard tiled, desk bookcase etc.
Nait2, Kans, RP3/ Nagoaka
Bedroom: Nait5i/Rega Ls8.
The Review
All kit previously enjoyed except Nait2 era.
First I picked up a 250-2, no service record so presumed original.
I didn’t know if the 112/fc2 would even work with this but I thought it was worth a listen so connected it up in place of the 150.
It was an immediate improvement at all listening levels. The only thing that concerned me a little was that for any given volume level was that I had to turn the 112 up a small amount by comparison to the 150. I guess there is a mismatch somewhere in the design that says the 112 sensitivity is set for use with a lesser amplifier power?
In terms of listening to the music I’d say the improvement was more than or at least equal to that given by substituting the 202/200 into the same set up. That was the first surprise, no preamp upgrade required. The next was the improvement at low listening levels. The opening up of the sound stage and the clarity of the bass was noticeable. It was like adding a loudness switch to a normal make of amp, but clearer.
A couple of days of enjoying the ‘new’ sound and listening to a lot of stuff to bed my ear in, and the 252/SC arrived. I wondered how much if any improvement would now be noticed, the 250 presumably having done all the main improvement work. I couldn’t’ have been more wrong! The uplift was a real WOW moment. Everything from EVERY source has been like hearing it all anew. I’m like a kid with a new toy, no better than that. At the age of 65 I’m excited to get out of bed in the morning and hear what else I can discover- more like the expectation of Christmas as a kid. lol.
Source’s tried have been the PC nas streaming via SqB, Radio via SqB, RP3, and Scala and The Wave (West Coast USA) via mobile phone BT/ APTX, all through CA Azur.
Since Friday 3 pm to now Mon3 pm ish I have been just listening again to so much I’d forgotten. 72 hours interrupted only by a few hours sleep, walking the dogs and Sunday’s F1 race.
Streamed music listened to on set up was
Tommy, The Who and Maria Callas, Tosca ( mono recording) as a test of the kit first.
Tommy first. The opening bars of ‘Overture1 and immediately I knew this was different. The drive from the bass guitar, on to ‘1921’, ‘Go to the mirror’, ‘Tommy can you hear me’ ‘I’m Free’ and finally We’re not gonna take it’ It was simply outstanding. The width and depth where the placing of individual sounds were coming from. The throw of the bass, the tightness of the thud and STOP, and thud again. I now understand what the journo’s mean by the sound stage opening up. On to Callas. A mono recording remastered for the digital age. I’m not a fan of listening to Opera, much preferring to attend. It is a theatrical experience that needs the atmosphere of an audience imo. However, as a fan of Opera you have to remind yourself of that experience now and again, as well as listening to just how great the past ‘greats’ really were. Callas was and will remain one such great. Unfortunately many opera high notes can sound a bit toppy to the point of screeching, especially on older recordings. The 252 handled the toppiest of Calls with ease. Not a hint of a screech even at high volumes. Impressed, I am.
So good was this first test that I have spent all weekend listening, first to a back to back of some LP’s I have against their digital versions. I have a confession. I prefer the digital age, even many of the remastered offerings are technically and for me, therefore musically, better (re)produced. There are exceptions and some of my old LP stuff sounds better to me than the digital copies, but they are the exception. I an also buying new LP’s but more for the sense of occasion and nostalgia than the musical quality but having said that I think the modern recordings are again technically better than they have ever been. Laura Marling being particularly good.
So the back to back test were
Tommy – one of those originals I prefer to the digital.
Amazing! Both good but as said previously the driving rhythm and then the counterpoint of Daltreys voice.
Bob Seeger- the other one as above. This has a scratch on it that I know is coming up, I wait for and then it’s gone. It was till there BUT, I never heard it until it came and went. No waiting for it, no noticing it, just totally hidden by the music shining above it. A triumph of musicality from the 252 combo.
Goats Head Soup- for the amazing side 2. Not a bad track on it.
Here the change from Jagger’s HeartBraker and its driving rhythm , straight into the delicate Angie was outstanding. I know how good it is, I know it is there, but this was on another level. I listened to both tracks twice just to enjoy it.
Little Feat, Time Loves a Hero- New Delhi Freight Train Again it was just so complete at spacing the sounds. A wider soundstage indeed.
Ozarks- It’ll shine —
This is one of my favourites from way back when. I don’t know why I’s just something that I go to to relax and listen. The sound of cicadas in the background and that easy country folk feel. Here I thought the Cicadas were in the room behind the furniture, all the while still listening to those sweet musical sounds coming out from the stage in front of me.
Last 2 are a test of old and new
EJ - Madman original pressing is absolute crud. It is by far the worse compression I have heard on an LP. The digital is just so much better, but it is an obvious choice to test the bass compression, or narrowing against old and new kit.
This was the downside of having a better system- the best seems to be made better. The worst seems to be made even poorer. The bass compression I’ve always noted vs the digital version here was just awful. I now have a muddy bass. No clarity , narrow, hidden . I just don’t know what adjectives to use, but it was blindingly obvious whereas it was merely noticeable before. Break out the Ortofon (probably the toppiest cart I have).
Laura Marling- Short Movie. At the opposite end of the LP production scale, this is probably the best I’ve heard. Absolutely the match or better than its digital equivalent.
It was here as well, throw away the Ortofon, you don’t need it.
So conclusion from the above is that every penny spent on the 352/SC/ 250-2 was worth it.
After this I just couldn’t stop listening- for the next 72 hours give or take and I haven’t stopped yet. I’m just listening to some covers from Dermott O Learys Saturday show while typing this.
Not exhaustive but over the weekend I have listened to
Radio
Craig Charles- Funky Friday
Dermott- Sat Am
Rylan and what I think the young folk call ‘banging toons’, or Ibiza dance music.
Johnnie Walker- seventies stuff.
The Wave West Coast 70’s stuff
Scala.
Streaming
Jazz - Beiderbecke, Brubeck, Forcione, Ellington, Heather Mase, Coltrane, Louis, Miles, Peterson, Grapelli, Jamie Cullum. Simone, Ella Fitzgerald.
Jazz-ish
Sarah Moule, Nora Jones, Melua,
Opera- Tosca, Callas. La Boheme.
Everything else
Adele to Whitney
Aaron Neville to Woody Guthrie
10,000 maniacs to the Who
Throw in a bit of Glen Miller and Bing as well as the King.
So pretty comprehensively tested.
Now to get used to it and relisten to everything I have Lol
On to the downsides.
First as I have mentioned it has exposed bad recordings to a greater extent than I really wanted to notice them. The second thing is that it has clearly showed me that my RP3/Denon/PP3 combo is a poor source. Not just Madman but everything sounds more compressed in comparison to the digital input, than it used to. This despite the overall sound actually being better than it used to be. Does that make sense? I’m now comparing RP3 against digital. I never used to so much.
BTW re another thread. The balance control is perfectly centred.
Next moves.
More upgrades, obviously 
The RP3 needs a better phono stage- Stageline I think. The cart needs looking at once I get a stageline. I might even have to look at the RP3 itself!
The Azur Dac is then the next obvious item in the source path to consider. Would a Brooklyn or even a previously owned TT make that big a difference?
I also need to run my ears in for a couple of months and then think about having the new kit returned for servicing. Nothing is noted to have been done in the past.
That’s it for now. I have other musings on the upgrade path I have followed and why. I haven’t quiet marshalled my thoughts on that yet, but suffice to say that I may have wasted 7 years on a second rate system.
Overall conclusion.
SC/252/”50-2 rocks. Just do it.
Edit:
I missed a couple of stand out moments while I was listening.
John Martyn - May You Never
Ella Fitzgerald-The Man I love
Annie Lennox - Primitive
All sent chills.