2x555DR vs. 1x555DR on a ND555

Or eat some eggs to kill the waiting

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This is me with my eggs.

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Your Avatar is Paul Newman? Or I am wrong?

Rutger Hauer aka. Roy Batty.

He looks like a bit like Paul Newman…I remember now I asked you the same maybe two years ago.
My memory is too selective.

the system I have now is capable to play difficult music…powerblock not yet

I have already eaten my 50 eggs. Too late Meni :smile:

Enjoy!

Haha. Well I can’t even remember you asking the first time, so your sharper than me.

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image

Some similarities, not?

Yes, especially with the grey-ish hair.

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If so you look like Paul Newman

Please correct me if I’m wrong, but has this thread gone a little off topic?

FWIW I have noticed two months or so after installing a second PS555DR that the system has finally settled down (burn-in?) and is delivering very realistic, natural sounds. Last week I found myself wanting to hear just what it could do by creating (but not saving) playlists of favourite track after favourite track, with the occasional ‘difficult’ track thrown in for good measure. It really seems as though everything is working together to deliver a realistic audio image. Was it worth the extra £7k? It’s hard to say, but for sure I wouldn’t want to go back.

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I understand it’s took you two month for full running to your second 555ps,I’m also running already three weeks my second 555 it’s start to sound better

Please elaborate

This following might be of some help:

I likely won’t be buying an oscilloscope any time soon!

Second 555ps I add lately is clearly better I’m more involving into music…also I get deeper Bass,everything sound full and calm.

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Obviously :smiley:

This little article gives you an idea of what noise is, and how one can measure it.

Of course, there are “audiophile tools” such as Isotek Mains Noise Analyser…

For the price of that so called “analyser” (probably much less) you can have someone with professional skills come to your place with industrial grade tools (e.g. Fluke ScopeMeter).

You would then have a definitive and comprehensive answer.

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My dealer leant me a mains noise meter. You simply plug it into to a power socket and it measures the noise level at the plug over a range of 0 to 1000. Mine were between 60 and 100, which reduced to 0 to 200 with the Isotek power boards. You need to listen to the effect the power boards has on the sound too, to be happy that dynamics aren’t compromised.

Me badass explains it here:

For anyone interested in the problems associated with power supplies this Wikipedia article on power factors is an interesting read. It also suggests that EU regulations may in future require Naim to modify their supplies to compensate for the non linear loading on the mains they introduce.

Wiki Power Factor Article

Phil