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Old 3rd July 2012, 06:59 PM   #4711
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Originally Posted by jtwrace View Post
I would love to see Hypex come out with some user adjustable SMPS's like the SMPS600.
The first SMPS with that feature will be in the 3kW class, not sure when to expect trickle down towards lower power levels.
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Old 3rd July 2012, 07:20 PM   #4712
jtwrace is offline jtwrace  United States
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Originally Posted by Bruno Putzeys View Post
The first SMPS with that feature will be in the 3kW class, not sure when to expect trickle down towards lower power levels.



If you had 3VDC-24VDC up to 6 amps I think we would all be
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Old 3rd July 2012, 07:39 PM   #4713
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Hi Bruno,

I'm extremely pleased with your Ncore.
I'm in the process of making some input signal cabling for my Ncore400s.
I'd like the female sockets, Molex 43030-000x, that mate to the male connectors inside the onboard header, Molex 43045-0412 to have the same inter-contact plating. Are the header male contacts tin or gold plated?

Thanks in advance,
Paul
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Old 3rd July 2012, 09:17 PM   #4714
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Tin.
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Old 3rd July 2012, 10:22 PM   #4715
pos is offline pos  Europe
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Bruno, could you also please give the reference of the power supply molex connector?
I would like to build an Y cable but would like to keep the original cables intact.
Or maybe you could provide them in the online shop?
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Old 3rd July 2012, 11:31 PM   #4716
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Quote:
I'd like the female sockets, Molex 43030-000x, that mate to the male connectors inside the onboard header, Molex 43045-0412 to have the same inter-contact plating. Are the header male contacts tin or gold plated?
Quote:
Originally Posted by Bruno Putzeys View Post
Tin.
From Molex themselves -
Gold or Tin versus Gold and Tin? |
Quote:
For any type of analogue signals, gold is a must because of line noise created by tin plated contacts
They're certainly not subjectivist audiophiles.....
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Old 3rd July 2012, 11:50 PM   #4717
ChrisPa is offline ChrisPa  United Kingdom
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Chris,
I did not compare power supplies; a serious comparison by one of the members is not to be expected I am afraid.
Who would/should do a serious comparison & how would it be done?
Well, maybe one of the members/NC400 owners might also be interested in a comparison and take the effort.
It seems you don't believe that they would be able to do a serious comparison

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And why are you afraid of it?
Sorry, I am not afraid of a comparison, just curious.
So why the use of 'Afraid' ?

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It seems English is your native language but reading it properly a problem?
English can be read in so many ways, and I never find it a problem
I find it worthwhile to understand exactly what is meant and why particular words are chosen... just like your last comment above!

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I'd therefore have thought this was an ideal opportunity for you to determine for yourself
I don't own Ncores myself, and when I had them I don't think a proper construction would give problems with twitchy or whatever sound.
I'd be more interested in regulated vs unregulated power supplies as current demand of class D and class A/B amplifiers depends on signal.
If you are interested/concerned/convinced about the audible differences between supply topologies I'm sure you could arrange to run a comparison yourself. You seem to have had access to ncores and it wouldn't be that hard to arrange to get alternative (linear?) supplies for comparison without you having to obtain ncore modules yourself.

I'd assume there are others on this forum/thread who own ncores and live near to you who would be interested in meeting up with you to perform the comparison.

Proper construction?
- what would proper construction be? what would improper construction be?
Twitchy sound?
- did you observe that with the ncores? how did it manifest itself when listening? what was the other kit involved when listening? what were the ncores being compared to?
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Old 4th July 2012, 12:31 AM   #4718
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It seems you don't believe that they would be able to do a serious comparison
Well, any comparison is interesting, but a proper set up is not so simple.
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Old 4th July 2012, 12:37 AM   #4719
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Quote:
Originally Posted by ChrisPa View Post
So why the use of 'Afraid' ?

English can be read in so many ways, and I never find it a problem
I find it worthwhile to understand exactly what is meant and why particular words are chosen... just like your last comment above!
Let me put it a bit different to explain what I meant: it's a pity that there is no serious comparison between high quality power supplies until now.
I understand that Ncore builders are first of all interested in getting their amps up and running without problems, but nevertheless the power supply issue is an interesting one.

Last edited by pieter t; 4th July 2012 at 12:44 AM.
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Old 4th July 2012, 12:41 AM   #4720
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Originally Posted by ChrisPa View Post
If you are interested/concerned/convinced about the audible differences between supply topologies I'm sure you could arrange to run a comparison yourself. You seem to have had access to ncores and it wouldn't be that hard to arrange to get alternative (linear?) supplies for comparison without you having to obtain ncore modules yourself.

I'd assume there are others on this forum/thread who own ncores and live near to you who would be interested in meeting up with you to perform the comparison.
I'd be interested and willing to set up a comparison, but will not take the initiative myself as I am not into the class D stuff.
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