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Message: <blockquote data-quote="aidilj" data-source="post: 21664" data-attributes="member: 20536"><p>Hi Guys,Another DIY for those interested. Upgrading the stock head unit amplifier IC to a better one. Head unit is a Philips BMW business cassette. Here are the ICs datasheet:Original - <a href="http://www.st.com/stonline/products/literature/ds/8160.pdf" target="_blank">TDA7385</a> - 4x37W quad bridge amplifierUpgrade - <a href="http://www.st.com/stonline/products/literature/ds/6886.pdf" target="_blank">TDA7560</a> - 4x50W quad bridge amplifierHead unit<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_0859.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Connector<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_0863_G.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Amplifier board<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_0898_G.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Stock amplifier IC, TDA7385, designed for 4ohm load. I thought our speakers are supposed to be 2ohm?<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_0903_G.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Replacement IC, TDA7560, capable of driving 2ohm load up to 77W<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_1091_G.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />IC removed<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_1096.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Heat paste<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_1103.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Big ass cap<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_1126_G.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Done<img src="http://i791.photobucket.com/albums/yy197/aidilj/Amplifier%20IC%20upgrade/IMG_1128.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Now I just need new pairs of speakerCheers</p></blockquote><p></p>

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