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Old 02-21-2017, 01:00 AM   #1
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How to make the speaker produce a louder sound with LM386

I want to use LM386 (http://www.kynix.com/uploadfiles/pdf2286/LM386M-1.pdf) to drive a 5W 8ohm speaker. But the speaker cannot make a loud sound. So I need your suggestions for making the speaker louder.

And here are my guesses:

1.Add a transistor to LM386
2.Reduce the power of the speaker through the circuit?
3.Or should I choose another IC to replace LM386?

I used TDA2005 before, but the 7805 chip was easy to burn during the process. Also it makes a terrible noise.

Now the sound quality is better by using LM386, but it cannot produce a loud sound...

I really need your suggestions. Much thanks if you can help me!
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Old 02-21-2017, 04:03 AM   #2
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Do you have a schematic of how you've using the lm386?
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