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How to make a home made power supply for a speaker more than 20W? Answered

A type of amplifier for additional external speakers

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lemonie (author)2009-03-03

Try this?
Most people seem to be using single chips these days unless they're using valves...

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bordlazyjp (author)lemonie2009-03-18

I'm making a speaker box for my bike for a class project and i don't know how to power it ...

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lemonie (author)bordlazyjp2009-03-18

You need an amp' for it, or a power supply? L

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Sawanlive (author)lemonie2009-03-06

Thanks but not too satisfy Though can you tell me making a amplifer with a computer power supply

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lemonie (author)Sawanlive2009-03-06

You won't have the parts you need in a computer power supply. If you don't want to buy single chips, you'd have to build circuits with transistors - do you fancy doing something more complicated than the circuits in that link or the one sound91 posted?

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sound91 (author)2009-03-03

Here is a link to a 22 watt amplifier, so it should work just fine for what you are doing. http://www.aaroncake.net/circuits/amp20w.asp

It is also stereo, so if you only needed mono, just do only half of it.

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