![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD_BC8EZO3pBET0FCBxgXNTC8pZSj-0C0tWr10nGUYY-cRN8CZ79XNFnPkaYo36xJc31FyMd1q2IG_coVVf3GYRZTHHQrFBlrb7pkQnwNlIlUo91mxaaexkc7cqrkESoMKbN3Gu52VFkor/s320/Laptop-Audio.png)
In dual mode LA4440 gives 6 watts per channel and in bridge mode 19- watt output. It has ripple rejection of 46 dB. The audio effect can be realized by using two 6-watt speakers. Connect pins 2, 6 and ground of IC1 to the stereo jack which is to be used with the laptop. Assemble the circuit on a general-purpose PCB and enclose in a suitable cabinet. The circuit works off regulated 12V power supply. It is recommended to use audio input socket in the circuit board. Use a proper heat-sink for LA4440.
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