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Old 31st July 2012, 05:21 PM   #4891
badman is offline badman  United States
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Originally Posted by jtwrace View Post
Just get 2x NC400 and one SMPS600 to start then add the second SMPS600 when funds allow.
And be sure to leave space for it in the chassis.
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Old 31st July 2012, 05:45 PM   #4892
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Originally Posted by redjr View Post
Question: Is the new NCore technology proprietary to Hypex, or is this a new Class D industry designation available to other vendors? I'm particularly interested in how this (NCore) technology compares to the B&O ICEPower Class D amp modules.
There are major differences....

Hypex Ncore is available for DIY. No ICEpower modules are available for DIY (although there are a few rougue modules out there ...)

Most ICEpower modules are self-powered, with a build-in SMPS. Hypex don't have such solutions.

Measurement-wise, there are big differences.... not in favour of ICEpower to say the least.

Sonically... Ncore is way beyond any ICEpower module. I know, I've tried all of them.
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Old 31st July 2012, 05:51 PM   #4893
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StigErik,

Any comments on LC Audio modules vs. nCore or UcD?
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Old 31st July 2012, 05:52 PM   #4894
redjr is offline redjr  United States
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Originally Posted by jtwrace View Post
Just get 2x NC400 and one SMPS600 to start then add the second SMPS600 when funds allow.
The NC400 is within reach ($), just can't become an active project right now. I've got another Class D project underway. A few years ago I took the ICEPower amp plunge for my home theater and have never looked back. I thought the sound they produced was nothing short of phenomenal. At least the best I'd ever heard or been able to afford up until then. Now with some time on hands, I've been playing with some DIY amps. My first was a 100wpc Class AB. And now a non-nCore Class D amp. With nothing really 'high-end' in my audio chain, I may never realize the true potential of a Class D amp of any stripe, or any other class amp for that matter. But it's all fun building them and trying to discern the subtleties in the sonic characteristics.

Sorry for getting a little OT.
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Old 31st July 2012, 05:58 PM   #4895
redjr is offline redjr  United States
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Originally Posted by StigErik View Post
There are major differences....

Hypex Ncore is available for DIY. No ICEpower modules are available for DIY (although there are a few rougue modules out there ...)

Most ICEpower modules are self-powered, with a build-in SMPS. Hypex don't have such solutions.

Measurement-wise, there are big differences.... not in favour of ICEpower to say the least.

Sonically... Ncore is way beyond any ICEpower module. I know, I've tried all of them.
Well then... I may have to have a second look! You make them sound like the holy grail of audio amps. And they may well be. Are there commercial products out there that use Hypex's nCore technology? I guess my ears are just getting old.
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Old 31st July 2012, 06:08 PM   #4896
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Originally Posted by mike_mcf View Post
StigErik,

Any comments on LC Audio modules vs. nCore or UcD?
Have no experience with LC Audio, sorry.
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Old 1st August 2012, 09:23 PM   #4897
Studley is offline Studley  United Kingdom
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Originally Posted by waltzingbear View Post
make sure and check out Gotham as well, often referred to as GAC, Gotham Audio Cable. Swiss.

Very good noise rejection with their shielding, I have found it to work better than star quad in many applications. Jim Brown in his measurements shows it to be about the best in noise rejection. Jim Brown is the person who brings you the pin 1 problem and various other EMI issues, you could say the Bruno of RFI.

GAC was (is?) the cable Neumann provided with their microphones.

Europe <http://www.gotham.ch/de/index.php>
America's <http://www.gothamaudiousa.com/>

available in cut lengths thru Redco on this side of the pond

I have no business ties to the company except for the money I give them.

Alan Garren
Mogami, Gotham et al all seem to use polyethylene insulation. Anybody know a reasonably priced cable that has PTFE insulation?
 
Old 1st August 2012, 09:40 PM   #4898
badman is offline badman  United States
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Mogami, Gotham et al all seem to use polyethylene insulation. Anybody know a reasonably priced cable that has PTFE insulation?
I wouldn't worry about this part. Polyethylene is a better choice than PTFE unless the PTFE is wrapped, which prevents excessive conductor re-heating during extrusion. PE doesn't need the high heat as it's more like a wax, and flows more easily.

Wrapped is only used by specialty audio cables, for the most part. I'd be happy with polyethylene, be glad it's not PVC.
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Old 1st August 2012, 10:28 PM   #4899
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Make your own.....Get some bare occ wire and some eptfe tubing....Through a shield around it if you need it...state of the art for pennies on the dollar compared to commercial cables.
 
Old 1st August 2012, 11:25 PM   #4900
badman is offline badman  United States
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Make your own.....Get some bare occ wire and some eptfe tubing....Through a shield around it if you need it...state of the art for pennies on the dollar compared to commercial cables.
'cept then the wire oxidizes and also can resonate within the tube, undamped. Not good!

Of course, OCC magnet wire is typically used and that's not going to oxidize.
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