his is an amazing circuit which is designed by Sammar Electronics from Lahore, Pakistan
This circuit is comprising of four tda2030a Integrated Circuits and this is a 2.1 home theater circuit providing a very good Bass effect the four of two Integrated Circuits are used for the Left & Right speakers output and the other two are used for the subwoofer output this amplifier section is basically a bridge amplifier & this is actually powered by the Low pass filter circuit based on 4558jrc Operational Amplifier. While the Left & Right channels are powered by the tone circuit which is again based on 4558jrc Operational Amplifier to balance out the Subwoofer dominance.
You can use a 4inches to 6inches Subwoofer at the output and 4 – 6 inches speakers for the Left and Right channel outputs.
The total wattage of this amplifier is around is around 70Watts.
18W + 18W for Left & Right Channel Speakers where as 35Watts for the subwoofer output.
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