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Class D Switching Power Amplifiers and Power D/A conversion

icepower 125asx2,
icepower 125asx2,
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Old 30th October 2015, 09:29 AM   #1
netxing is offline netxing  China
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Default icepower 125asx2,

I bought 2 pieces icepower 125asx2 board online, but it looks like not the same as the official website shows!
please take a look, this is genuine or fake? thanks.
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File Type: jpg 2.jpg (242.6 KB, 814 views)
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Old 31st October 2015, 02:48 PM   #2
Nisbeth is offline Nisbeth  Denmark
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icepower 125asx2,
They look close enough I think. The pictures you see online will most likely be of older versions and so they look a bit different.

In order to fake the module, you'd have to fake the heat sink (which is a custom extrusion), rebrand the controller/driver chips as ICC1/ICC3 (custom ICEpower ASICs) etc. I don't think that's worth it.

There are obvious fake ICEpower A-series modules on taobao, but they look nothing like the real thing.

/U.
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Old 2nd November 2015, 01:12 AM   #3
netxing is offline netxing  China
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Default Oscilloscope images!

Quote:
Originally Posted by Nisbeth View Post
They look close enough I think. The pictures you see online will most likely be of older versions and so they look a bit different.

In order to fake the module, you'd have to fake the heat sink (which is a custom extrusion), rebrand the controller/driver chips as ICC1/ICC3 (custom ICEpower ASICs) etc. I don't think that's worth it.

There are obvious fake ICEpower A-series modules on taobao, but they look nothing like the real thing.

/U.
BUT. now I DO think it's fake one, fake technology by incredible!
please check oscilloscope image.
BTL model, output O+ and O-, +24v bus, tow pieces of A and B.
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File Type: jpg 6.jpg (183.3 KB, 100 views)
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Old 20th October 2016, 01:43 PM   #4
treuben is offline treuben  Australia
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So did we ever decide whether these were fake or not? How did you go with them?
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Old 31st May 2018, 03:27 AM   #5
wuanqi is offline wuanqi  China
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Default Please check the Font style

Based on the photos, I think these two boards are NOT genuine.
The Font show in the back side of the board is not correct.

Original Font adopted by ICEpower, since 500ASP, is a special "slim" type of font.

The font show in the back side of the board are more "rounded".
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Old 9th May 2019, 10:52 PM   #6
javableak is offline javableak  Spain
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Default Fake Ice Power module?

Hi guys. Very interesting this. I bought in China (on ebay) an Ice Power module ASX125, and I have another that is original of an amplifier Aguilar Tone Hammer 350. Both seem exactly the same, but with a magnifying glass, they are not identical, there are small differences. In sound I think they sound exactly the same, but I have doubts. Is it a fake I Power module? How is it possible to copy this technology?: eek:
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Old 11th May 2019, 01:43 PM   #7
Nisbeth is offline Nisbeth  Denmark
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icepower 125asx2,
What are the differences? The 125ASX was launched more than 10 years ago, so if they are not the same age it's very possible that the two modules are not completely identical.
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Old 11th May 2019, 07:24 PM   #8
javableak is offline javableak  Spain
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Quote:
Originally Posted by Nisbeth View Post
What are the differences? The 125ASX was launched more than 10 years ago, so if they are not the same age it's very possible that the two modules are not completely identical.

The differences are in the quality of the welds, the Chinese I.Power of Ebay is a bit more rough. After some component (film capacitors) are not equal, if they are of the same value, but the "Chinese" is a kind of capacitor that I see very often in certain cheap assemblies. The typography is slightly different in the graphics, and of course, the price!
As for the sound, I have not been able to find differences, I have not connected it to any analyzer, simply with my ear, they sound the same.
I've also heard that they are cheap copies, typical of Chinese but I'm not sure, and that's why this thread seemed very interesting to me. : scratch2:
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Old 11th May 2019, 07:44 PM   #9
Nisbeth is offline Nisbeth  Denmark
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icepower 125asx2,
Show us a picture then
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Old 12th May 2019, 07:53 AM   #10
kokoriantz is offline kokoriantz  Lebanon
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The manufacturer uses AES17 filter for measurements.
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