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Class D Switching Power Amplifiers and Power D/A conversion

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Old 15th April 2012, 10:27 AM   #3671
dan1502 is offline dan1502  United Kingdom
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The width is about 7 mm. I got some cheap gold plated copper ones, bent them through 90 degrees and ground them down to about 6.8 mm and they fit though I could really do with some that take even thicker cables.
 
Old 15th April 2012, 08:23 PM   #3672
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guys, be sure to use the best, high-priced spades you can find as these are way more important than the amp itself.
the shop linked above also sells 50$ audiophile fuses, don't skimp on quality: Furutech High Performance Fuses - Large by Revolution Power

cinically yours, mr push pull
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Old 15th April 2012, 08:31 PM   #3673
Julf is offline Julf  Europe
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Originally Posted by mr_push_pull View Post
guys, be sure to use the best, high-priced spades you can find as these are way more important than the amp itself.
No, no, no! It's the power cord that is the most important part! You really have to balance all that impure "plain" copper between your wall outlet and your local transformer by a final metre-and-a-half of monocrystalline virgin silver...
 
Old 15th April 2012, 08:32 PM   #3674
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Of course, those Fool-o-tech fuses are so good you should use at least 10 of them in series for 10 times the improvement!
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Old 15th April 2012, 08:40 PM   #3675
jmbulg is offline jmbulg  Belgium
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Originally Posted by Marcocet View Post
Okay, I've got a problem and have had no luck tracking it down.

I just assembled a quad-mono NC400 amp yesterday. Three of the channels are working perfectly, but one is intermittent. I've tried swapping the power supplies and all the cabling, and it's definitely the NC400 module.

I've adjusted the DC output with nothing connected so that when it's working it reads 0v. However I've noticed that when the signal cuts out it jumps to -300mv or so. Again I've swapped all the cabling and the power supply with no luck. Moving the module around doesn't seem to effect it, and I got out the canned air and cleaned the hell out of the thing just in case something was shorting.

At this point I have to imagine it's a defective module but I wanted to see if anyone else had run up against a similar issue. I reached out to hypex last night but it's the weekend so I'm not expecting a reply until monday. And of course I'd rather not mail the thing back to the netherlands if I can fix it myself.

Any thoughts? Thanks everybody.
Have the same problem on one channel, but need to swap amps to rule out one channel of the source has a DC problem. I asked hypex about it thursday, no reply yet.
 
Old 15th April 2012, 11:06 PM   #3676
dan1502 is offline dan1502  United Kingdom
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My spades cost me about a couple of pounds for 8 but it's fitting the cable size that's the issue.

My plan is to wire everything up after checking the earths then take pics and get confirmation it all looks ok and if it doesn't work then it's straight to Hypex but fingers crossed mine will be ok as there do seem to have been a fair few having trouble of late.
 
Old 16th April 2012, 12:12 AM   #3677
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Quote:
Originally Posted by Julf View Post
No, no, no! It's the power cord that is the most important part! You really have to balance all that impure "plain" copper between your wall outlet and your local transformer by a final metre-and-a-half of monocrystalline virgin silver...
O, c'mon, when you take your HiFi serious you have to start right there where your electricity enters the home:

de Groef audio - www.degroefaudio.nl

Only 32 Euro for a single goldplated fuse......
 
Old 16th April 2012, 12:20 AM   #3678
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Quote:
Originally Posted by mr_push_pull View Post
... be sure to use the best, high-priced spades you can find as these are way more important than the amp itself. ...)
Seriously, do you really even need spades with the NC400 modules?

Can you just divide the stranded wires into two bunches, tin them with solder and make your own integrated spades and forgo the crimp on spades ???
 
Old 16th April 2012, 12:49 AM   #3679
yetis is offline yetis  United States
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Quote:
Originally Posted by mr_push_pull View Post
am I supposed to know this Hurtig guy? I surely hope no amp will ever be able to choke me.
Quote:
Originally Posted by mr_push_pull View Post
guys, be sure to use the best, high-priced spades you can find as these are way more important than the amp itself.
the shop linked above also sells 50$ audiophile fuses, don't skimp on quality: Furutech High Performance Fuses - Large by Revolution Power

cinically yours, mr push pull
I accept your cynicism openly. Who knows or cares if it makes a huge or any difference.. I am almost $2000 in for the amp and power supply... So what's $200 of frivolity at this point? I don't believe it will hurt and maybe it ll help. I don't care. At least I will never wonder..
 
Old 16th April 2012, 01:04 AM   #3680
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Default Ugly reused cabinet

Billede Olymus 018.jpgPicture off the linear supplyed N Core monos.

First time in my life I managed to upload picture ! I thought it was difficult. lol

Last edited by Erlend Sæterdal; 16th April 2012 at 01:07 AM.
 

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