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Class D Switching Power Amplifiers and Power D/A conversion

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Old 26th July 2014, 02:06 PM   #1
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Join Date: Jul 2014
Default Need your help to build my first amp

For my project, I need 2 x 4 ways amp. I would like them to be in 4 boxes, two close to the right speaker, two close the left one.

Iím not a electronic expert but can do some assembling, wiring etc. I donít want to do any composants solding on a PCB.

I need around 100 watts per channel for 6 amps and 200 watts for the last two which will feed the woofers.

So the plan is to have a stereo amp in each box. I have questions :

- SMPS or toroidal ?
- One power supply per amp or we can use one PS for multiple amplifier ?
- I need protection for my speaker. Is there a difference between speaker protection and soft start ?

I was thinking about a LJM module (L15 or/and L25D). It seems to have a good value foor money.
Is there a place where I can find a complete diagram to build my amp ?

If I understand well, I would need an amp module, a PS, a soft start and thatís it ?

Thank you for your help.

Seb
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