Naim Nac-N272 vs Cambridge 851E, N, D with ATC SCM50ASLT

Adam Zielinski posted:

You can find that in the power-amp manuals (specifically NAP 500 and NAP 300).

Thanks, but still unclear, is it possible to see the scheme somewhere to understand exactly which XLR wire goes to which DIN pin? Otherwise we can damage it.

Tesilk posted:
Adam Zielinski posted:

You can find that in the power-amp manuals (specifically NAP 500 and NAP 300).

Thanks, but still unclear, is it possible to see the scheme somewhere to understand exactly which XLR wire goes to which DIN pin? Otherwise we can damage it.

My suggestion is that you contact Naim at customer service email and explain exactly what you need help with.
What you are asking now is beyond the scope of this forum I'm afraid.

pjb_4465 posted:
Adam Zielinski posted:

If you read the N272 manual you will realise that both DIN outputs carry both channels:

If connected to NAP 250 - use only one 4-DIN to XLR

If connected to NAP 300 - use two 4-DIN to XLR cables.

In your case I'd use two DIN outputs - make sure you capture the CH1 and CH2 correctly.

......which is why I use 272 biamped with 2 x Nap250dr, an effective and handy possibility....

pjb 4465

Can you please elaborate a bit more on your setup...what speakers do you use ?I assume they accommodate bi-wiring,my Taksim's also do,and i use a 272 with a single 250 dr. The consensus on this forum would appear to be to go to a 300 dr,rather than bi-amping.Is that all you need,is the 2 cables and 2 amps?I am not saying i need more power,just keeping the door open for the future,i have never heard anyone bi-amping off a 272 before.

No quarter posted:
pjb_4465 posted:
Adam Zielinski posted:

If you read the N272 manual you will realise that both DIN outputs carry both channels:

If connected to NAP 250 - use only one 4-DIN to XLR

If connected to NAP 300 - use two 4-DIN to XLR cables.

In your case I'd use two DIN outputs - make sure you capture the CH1 and CH2 correctly.

......which is why I use 272 biamped with 2 x Nap250dr, an effective and handy possibility....

pjb 4465

Can you please elaborate a bit more on your setup...what speakers do you use ?I assume they accommodate bi-wiring,my Taksim's also do,and i use a 272 with a single 250 dr. The consensus on this forum would appear to be to go to a 300 dr,rather than bi-amping.Is that all you need,is the 2 cables and 2 amps?I am not saying i need more power,just keeping the door open for the future,i have never heard anyone bi-amping off a 272 before.

I use active ATC SCM50ASLTs. XLR inputs. So everything is done by ATC, no additional setup needed. 

Naim boxes have feet designed to support them properly. You can put all sorts of cones and squishy pads underneath, which will alter the sound, and can end end up fiddling about until the end of your days. 

I've never been keen on steel and glass for racks and it may be worth trying something else. However, if you are happy with the sound, just enjoy it. 

Hungryhalibut posted:

Naim boxes have feet designed to support them properly. You can put all sorts of cones and squishy pads underneath, which will alter the sound, and can end end up fiddling about until the end of your days. 

I've never been keen on steel and glass for racks and it may be worth trying something else. However, if you are happy with the sound, just enjoy it. 

Agree, but what keep us going is the never ending process of sq increase, this is the real fun of moving forward, imho.

Because when and if it will finally stop, and there will be no room for improvement, it will be just boring...

Tesilk posted:

Agree, but what keep us going is the never ending process of sq increase, this is the real fun of moving forward, imho.

Because when and if it will finally stop, and there will be no room for improvement, it will be just boring...

The first statement I'm sure applies to some, maybe many, but as HH intimates, crtainly not all of us on this forum - however if that is what gives you fun, then great for you and may you continue to find tweaks to try.

The second statement sounds rather sad - is listening to music boring? If it is, then this does seem to be a strange hobby to have got into, unless it is simply that you hanen't yet found a system that enables the music to engage you, in which case perhaps something more radical is called for rather than tweaks...

No quarter posted:

Are you using them in conjunction with a good rack(Naim Fraim) or just sitting on some random surface?

I use them in conjunction with Solidsteel H6 rack, each shelf is isolated by spikes also, but Cold Ray is a totally different stuff...

Huge posted:

How are the cables wired using 2534, and what XLR plugs are used?

I was going to make similar cables to connect a 272 to a NAP300(DR).

No idea how they are wired as I did not see them to do it, `I found only one person in Russia who knew how to do it, and now they are sealed, but I was told that the way it is described for the 300 on the back it works.

The cable actually came with Mogami XLR plugs, as it was originally Mogami studio 2XLR - 2XLR cable 7m.

 

Ah thanks, I see - they cheated by modifying a pre-made cable.  I'll be doing it from scratch.

I'll actually use two separate lengths of Mogami W2549 wired as Pseudo-balanced, Prehkeytec DINs and Neutrik XLRs (I'll use W2549 as it has lower capacitance than W2534).

Huge posted:

Ah thanks, I see - they cheated by modifying a pre-made cable.  I'll be doing it from scratch.

I'll actually use two separate lengths of Mogami W2549 wired as Pseudo-balanced, Prehkeytec DINs and Neutrik XLRs (I'll use W2549 as it has lower capacitance than W2534).

It would be nice if you can share it with me when it will be done - maybe will be my next step. You can pm me whenever you want.

The idea so far was at least to get those DINs working. 

After a lot of reading I decided to start with 2534, but will certainly try 2549 later. 

I can say that 2534 sounds amazing. 

When I made a stereo interconnect (ND5 XS to Nait XS 2) I made up 2 cables to try against each other... 1 W2534 stereo pseudo-balanced construction and 1 using W2534 stereo twinax construction.  In this application the W2534 stereo pseudo-balanced won out by a very small margin, but the biggest difference wasn't the type of the cable it was the pseudo-balanced vs the twinax construction.

Huge posted:

When I made a stereo interconnect (ND5 XS to Nait XS 2) I made up 2 cables to try against each other... 1 W2534 stereo pseudo-balanced construction and 1 using W2534 stereo twinax construction.  In this application the W2534 stereo pseudo-balanced won out by a very small margin, but the biggest difference wasn't the type of the cable it was the pseudo-balanced vs the twinax construction.

I see, could you explain please, how the pseudo-balanced construction is made? I did not hear about it before. 

With Coax (and twinax) the return current flows in the screen
With pseudo-balanced, two cores are used to handle the 'signal' and 'return' currents, the screen is connected to the return (0V) core at the source end only.


A very rare variant also exists in cases where the shell of the connector is earthed separately from the 0V pin: the shield can be connected only to the shell, and not to the 0V pin.  However, for this to work well and without risk, it's essential to know how the amplifiers are earthed internally, so this construction isn't generally used (and I didn't even try it as I don't know that Naim amps are fully stable when connected this way).  This construction is normally only used with amps specifically designed to be connected like this.

Tesilk posted:
Huge posted:

When I made a stereo interconnect (ND5 XS to Nait XS 2) I made up 2 cables to try against each other... 1 W2534 stereo pseudo-balanced construction and 1 using W2534 stereo twinax construction.  In this application the W2534 stereo pseudo-balanced won out by a very small margin, but the biggest difference wasn't the type of the cable it was the pseudo-balanced vs the twinax construction.

I see, could you explain please, how the pseudo-balanced construction is made? I did not hear about it before. 

Well, after checking with technicians, they confirmed that actually the pseudo-balanced construction was implemented in my set also. )

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