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This is a very popular series of amplifiers audio users who require maximum aduio results and of course with a relatively cheap price. This circuit requires a minimum voltage and maximum 9 Volt and 30 Volt. This amplifier circuit using ic TDA2003, which is used in car audio power, because of making these amplifiers can easily be made on each speaker of the amplifier. By using ic and component quality is very good circuit used separately. The circuit can be seen below.   Technical information: Supply voltage = 12V Output             = 10W 

Here I make a stereo power amplifier with IC TDA2003, but actually i made it with 2 IC , so that a stereo amplifier . Construction is very simple and easy. I only need 2 TDA2003 mono amplifier circuit , and then combined into one. Then the transformer ,  the transformer that i use here is the transformer 10A , so that the power released is greater. Grid power amplifier using the former from the box 10A adaptor , :-) decent can still be used . To view the location of components inside the box , see below : Top Right Top - Right Wow .,.,this amplifier is very good if using a transformer 10A, issued no buzzing sound , and strong for high bass , just nice deehh..,.,,.,.