loud speaker not working, is it compatible backwards

Hey guys

my loud speaker is not working, I have done all the tests that I have been asked to do, ie plug in head phones and so on, checking in apps to see if the software is ok and it is, So I now want to find somewhere to buy a loud speaker or audio models or whatever it is that is in my Ipad 5. Does anyone know if there is a backwards compatible at all?

Regards

David