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Class D Switching Power Amplifiers and Power D/A conversion

sonis impact mod
sonis impact mod
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Old 29th September 2007, 10:38 PM   #1
thezaman is offline thezaman  United States
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Default sonis impact mod

i want to use the original voume control and input jack but want to add the inpute caps ,how do i do this?
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Old 1st October 2007, 02:03 PM   #2
thezaman is offline thezaman  United States
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any help out there i want to add caps to improve the base, but want to use the stock volume control and input set up .what changes do i make in the board to include caps and where do they go.As you can tell i am new at this .
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Old 1st October 2007, 02:51 PM   #3
AdamThorne is offline AdamThorne  United States
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Check out info here:
http://www.michael.mardis.com/sonic/start.html

It sounds like you want version 2. I did version 3.

Good luck, be careful.
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Old 1st October 2007, 03:46 PM   #4
thezaman is offline thezaman  United States
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Thanks for youe help,Can you comfirm that the posotive pad is the pcb edge top and bottom.Again, thanks, Larry
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Old 1st October 2007, 04:02 PM   #5
AdamThorne is offline AdamThorne  United States
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Sorry, I can't. I did mod #3, and I used bipolar (film & foil) caps rather than electrolytics so I didn't pay any attention to which side of the inputs was positive.

I'll bet you could confirm it yourself with a voltage meter. Failing that you can probably take the website's word for it, or make sure to get bipolar caps and it won't matter which is positive.
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