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WTH!!!super great idea bro!!!
2A is a too much for such small device unless you have exactly higher voltage as same as the dropout voltage of this ic.:)
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i have an idea to make a great power supply with a ATX psu.using two buck boost converters(for two channels) and rotary switch for 3.3v , 5v , -5v and -12v.will this work?or anything else?and why always that 5v rail has maximum current output.huge that 12v rail.
but i was soldered ic with heatsink is connected.otherwise i will buy more tda 2003 so can throw my old one.however i will use usb adapter to first test then ill use with my pc and how i measure power i dont have a multimeter.P=VI gives the power but its not practical as well.this is my usb amp you can give me a word about that, http://www.ebay.com/itm/PAM8403-5V-2-Channel-USB-Power-Audio-Amplifier-Module-Board-3Wx2-Volume-Control-/262130705142?hash=item3d083522f6:g:FAkAAOSwo0JWPHrG
its just decoupling the input and the DC connection.if u dont add them its just make a little noise at the power on and its disappeared.but tonep, if my PSU is noisy(if not filtered the DC power) will this amp give a noisy sound? i cant imagine that how is your amp's sound quality? felling of the bass? i think its good because the prebuild amps are good. give me a reply if you can.by the way this is a tricky instructables that not very complicated. :)
thats the problem bro my name. alright can u say me your name in facebook if exsist?because you are a good person that know about electronic technology.im glad to meet you.
thanks for the very quick reply.i dont have any 12v battery so i cant test it but i can either do it with 9v battery.otherwise i like to build a amplifier using a premade module that i can buy from ebay to my pc.bcos these amps wont a another powersupply. so i can make a usb powered amp using premade amp.
This amp isnt works as an amplifier.sound is not amplified well.it is not works some times and also there is so unwanted sound either i cant increase volume.please help me to fix this problem.and can you say your name in facebook? then i can add u as friend thus i can solve my problems in this amp.please help me in this problem please.schematics i used that are posted by you and i was modified them to add pc board terminals and for real TDA2003 ic.i made the board according to your layout files.and i can see that your pcb is not like the pcb that u posted.anyways please help me quickly in this problem.
PansiluJ its me