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Old 30th May 2012, 06:58 AM   #4221
Julf is offline Julf  Europe
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Join Date: Oct 2011
Location: Amsterdam, The Netherlands
Quote:
Originally Posted by Audioschipper View Post
That is right. It's an upgrade. Mine has it too so I asked Hypex. It is extra isolation.
Ah. So now we can have endless debates about the influence on sound quality
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Old 30th May 2012, 07:59 AM   #4222
Ianmac is offline Ianmac  Scotland
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Quote:
Originally Posted by ajst2duk View Post
Brought them to life this morning - nice - yes I know the signal cable could be shortened but while I'm still experimenting, I've left the length on the cables just in case I change configuration. Unlikely though as they sound great and run cool.
Click the image to open in full size.
I have built my two with a similar board layout.
You may find it an advantage to remove your rear panel and turn it round 180 deg so that your input is very close to the input socket on your amp and likewise your LS connections. With your LS connectors in the corner try and keep the LS cable away from the board and input cable. Hypex recommend twisting the LS cable. Extend or remake the mains cable and run it down the side of the amp and round the front of the SMPS well away from the input.
I eventually turned the SMPS round 180 to minimise the mains cable length and keep my ventilation slots clear of any possible obstruction but that meant making a new longer SMPS-NC400 interconnect from the cable supplied with the NC400. Took time and tested my soldering skills as the conectors are designed to be crimped.

The AMPS performance can only be described as SUPERB a credit to Bruno and the team at HYPEX

Have we now reached a point where Class D is better than a Class A gas guzzler ?

Ianmac

Last edited by Ianmac; 30th May 2012 at 08:13 AM. Reason: spelling correction
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Old 30th May 2012, 08:19 AM   #4223
antbom is offline antbom  Italy
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Here is my pair of NC400, built in Hifi2000 boxes (not so tight fit, height is 80mm):
Click the image to open in full size.
Very ugly holes at the back panels, but I don't care too much.
Any critic/suggestion about wiring is welcome.

Antonio
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Old 30th May 2012, 08:46 AM   #4224
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Quote:
Originally Posted by Julf View Post
Ah. So now we can have endless debates about the influence on sound quality
Yeah right.

Plastic is not a natural material, thus it does not sound natural. We must use natural materials, like earwax, goatskin, cotton or linseed oil. According to some people, plastic insulation is evil you see.......

But according to me, audio (and "High-end" in particular) is a magnet to BS.
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Old 30th May 2012, 09:13 AM   #4225
Julf is offline Julf  Europe
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Originally Posted by StigErik View Post
But according to me, audio (and "High-end" in particular) is a magnet to BS.
I guess we need more non-magnetic materials
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Old 30th May 2012, 10:47 AM   #4226
robbbby is offline robbbby  Canada
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Now I have to sell my original ncores so I get get the new ones with extra isolation, damnit.
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Old 30th May 2012, 11:04 AM   #4227
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I have one of each so I will probably loose my wits
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Old 30th May 2012, 01:13 PM   #4228
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Quote:
Originally Posted by Audioschipper View Post
That is right. It's an upgrade. Mine has it too so I asked Hypex. It is extra isolation.
It's not what I'd call an upgrade. Originally we counted on the two 3mm gaps (primary heat sink to core, core to secondary) to give us double insulation. Worked fine, until someone pointed out that if the primary heat sink was even slightly bent out of true the insulation distance would become compromised. These products are being put into the hands of people without formal electrical installation qualifications and this was one way to improve robustness.
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Old 30th May 2012, 01:36 PM   #4229
ChrisPa is offline ChrisPa  United Kingdom
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Quote:
Originally Posted by Bruno Putzeys View Post
It's not what I'd call an upgrade. Originally we counted on the two 3mm gaps (primary heat sink to core, core to secondary) to give us double insulation. Worked fine, until someone pointed out that if the primary heat sink was even slightly bent out of true the insulation distance would become compromised. These products are being put into the hands of people without formal electrical installation qualifications and this was one way to improve robustness.
So do you suggest/recommend that we wrap insulation around the core?
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Old 30th May 2012, 01:45 PM   #4230
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I shouldn't bother unless you plan to drop the supply on the floor before it's mounted in a case.
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