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Class D Switching Power Amplifiers and Power D/A conversion

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Old 11th June 2006, 02:31 PM   #31
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Hi Lostcause,

Thanks for the reply. It sounds like it is too much of a nightmare to attempt to fix. I have to say it sounds very good anyway for what it is, and for $56. I soldered two gold RCA connectors to some really good speaker cables, and have that running to the speakers. That really improved the sound.

I'm getting a Charlize soon!

I have had a 12V 7AH battery running my SI AMP for about a month. It is the best sound so far out of the SI. I will be buying a Samsung power supply next to see if it is better than the $20 SMPS that I purchased from SI.

Here is the link: I heard it sounded good from another thread.

http://www.allelectronics.com/cgi-bi...R_SUPPLY_.html
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Old 11th June 2006, 06:06 PM   #32
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Tripath07,

I really recommend the DELL supply I posted earlier. It has a Samsung made board inside and it is 14v as apposed to the 12v of the one you linked to. In my opinion 2v is a significant enough increase to make a difference.

The dell supply is also cheaper as you can get it for 9$ + $6 shipping + $2 shipping for each additional unit.

Here is a pic of the board removed from its case. I replaced the original two 470uf 35v output caps with Panasonics FC 560uf 35v caps that I just happened to have. I also modified the board a bit to make it rectangle, there was a tab coming off one side for the AC in. The N and L I wrote on the board is for the AC. There was also a metal shield soldered to the ground plane that wrapped around the board, but I took it off because I am putting it in an all metal chassis.

Click the image to open in full size.
Click the image to open in full size.

And this pic is just to show how much I like the supply...... I have 5 of them.

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