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Class D Switching Power Amplifiers and Power D/A conversion

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Old 1st August 2013, 04:25 AM   #761
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Quote:
Originally Posted by b4rr3l View Post
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Super Amplifier Hi-Fi Stereo Bull3t Ultimate
2x 125W RMS 4 Ohms
2x Inputs
Integrated Meanwell PSU, Hi-End Bivolt Full-Range
Bluetooth receiver w/ integrated Hi-Fi Wolfson DAC
aptX® audio decoding: The highest Bluetooth stereo audio quality possible

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That's a beautiful amp. Well done on everything including the high quality parts !
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Old 4th August 2013, 05:27 PM   #762
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Default Hypex Ncore dual mono build

I wanted to share my Hypex Ncore dual mono build.

Parts:
Qty(2) Hypex NC400 amp modules
Qty(2) Hypex SMPS600 power supplies
Qty(2) Aluminum cases - Ebay store
Qty(2) Vu meters
Qty(2) Vu meter driver boards
Misc connectors

Picasa link to more amp photos

The cases are very nice. I had the company where I got the cases cut out the binding posts, XLR connector and front VU meter holes for me. They did a perfect job on it. I sent them a small drawing of what I wanted and the sizes of the holes.

As far as how they sound… Simply put, amazing! Things being subjective and all, I can easily say they are the best I have ever owned. Are there better out there? I am sure everyone has their own opinion. As for me I am happy.
Attached Images
File Type: jpg Ncore1.jpg (567.7 KB, 450 views)
File Type: jpg ncore2.jpg (766.5 KB, 700 views)
File Type: jpg Stereo2013.jpg (512.5 KB, 706 views)
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Old 8th August 2013, 02:16 PM   #763
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hi guys i need help i have a Fine&Fine 1200w power amp which blows fuse every time i connect the second channel to power after the cossover shorted the output i have already replaced one transistor that was shorting after i have measured, but still shorting... what can i do.

please help
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Old 11th August 2013, 12:26 PM   #764
tuo is offline tuo  Finland
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Here are a few photos of the D-class amp I'm using at the moment. It's a 41Hz's AMP6-Basic in a Modushop case.

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I also build one to a friend of mine, who was using an old AB-class receiver with his computer to play background music. The old receiver consumed 40W on idle, this one consumes 1.5W on idle and 2.5W on moderate volumes. So the amp has probably paid itself back to my friend.
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Old 14th August 2013, 09:17 PM   #765
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Smile NC1200+SMPS1200

Few Hypex modules placed in the box.
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File Type: jpg NC1200 2.jpg (524.9 KB, 606 views)
File Type: jpg NC1200 6.jpg (603.7 KB, 670 views)
File Type: jpg NC1200 7.jpg (716.3 KB, 474 views)
File Type: jpg NC1200 4.jpg (391.7 KB, 396 views)
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Old 17th August 2013, 06:23 PM   #766
Drsah is offline Drsah  Slovenia
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Very nice.
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Old 17th August 2013, 07:27 PM   #767
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Quote:
Originally Posted by Lazy Cat View Post
Few Hypex modules placed in the box.
Perfect, as habit.
Just a trick: i use to glue a wire isolator, opened all the long, to protect the wires traversing shield plates from being cut if any vibration. I don't know if my poor English is good enough to make-me understood.
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Last edited by Esperado; 17th August 2013 at 07:35 PM.
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Old 25th August 2013, 12:24 PM   #768
Nisbeth is offline Nisbeth  Denmark
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Older project: My ICEpower 50ASX based 6-channel amp with LME49710 input buffers

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More pics and writeup in the blog

/U.
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Old 26th August 2013, 04:54 AM   #769
packman is offline packman  Italy
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Nice work Nisbeth! Can you provide the PCB scheme and components of your buffer? Would want to try with my ASX125 module, thanks
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Old 27th August 2013, 07:45 PM   #770
Nisbeth is offline Nisbeth  Denmark
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If you are using Eagle I can send you the files - send me a PM

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