Well a friend of mine has been running a interesting setup. He runs his comp to a splitter which also has his ipod going to it, from their it goes to the amp. So basically he is running a line out to a line out. From a technical view will this cause damage? I have always thought it does, he has been running like that for awhile without any problems. Is this something he should change? I think its is but i want to know what people more knowledgeable think?