I want to use my i-device with amp via line out signal I already have an ipod touch 3G, is it worth to buy an ipod classic 5G?   which of those have better line out?  is the difference noticeable ?   I hear that the line out signal of the ipods, is not real    thanks

hi guys (sorry for my English writing) I know there is a lot of threads  in this subject, but all of them are not in my price range. I read a lot of threads but I can't summarize. I want to hear every instrument separately and with a great imagine tight and fast bass I listen to bands like...