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Hello ! in this post I will show a small amplifier using integrated circuit TDA2004 get two outputs 10 watts , the circuit is very simple , if you want to change the circuit , or a mono version refer to the datasheet tda2004 ! The circuit is powered by source between 12 and 15 volts with a current of 1.5 Amperes.   See the figure below :

This circuit operate with IC AN7156N . You just can use this IC , because hav'nt similarity it. In this Circuit have 2 input IN R and IN L and have Output R and L . Voltage supply require 15 V , minimum voltage 9 V and maximum voltage 24V . And the voltage must DC voltage , and better the DC voltage filtering . Maximum Output for 1 speaker 25 W , so this circuit have maximum output 2 X 25 W with minimum impedance 4 ohm. See this circuit schematic below : Click image to view enlarge

Circuit diagram for TDA1517 Datasheet for TDA1517: Download

Minimum Voltage required for this circuit  8 volt and maximum voltage 28 volt . Its can use to amplifier on the electronic devices such us Radio , DVD , MP4 , MP5 , and etc. To amplify the signal sound to audio sound , Maximum output power 2 x 20 Watts with impedance 4 ohm. The circuit is stereo amplifier. You can use the circuit to car amplifier because support to subwoofer speaker. See schematic diagram below :