Jinnie's picture
Last seen: 6 years 5 months ago
Joined: Feb 26 2017 - 11:22pm
I need suggestions to make my speaker make a loud sound
commsysman's picture
Last seen: 2 years 4 months ago
Joined: Apr 4 2006 - 11:33am
Jinnie wrote:

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!

Your speaker is too small to produce the sound level you want.

You need a speaker that is rated for at least 40 watts.

An LM386 cannot put out enough power. You need an amplifier that can put out at least 20 watts RMS.

Log in or register to post comments
  • X