Hi, this may seem like a strange and newbie question. But can I use a full size (non-portable) headphone amp with my iPhone 4S? I am not planning to use it on the go, its just that my computer (which is a desktop) is in a less then ideal location to listen to music, so I want to use my iPhone with all my music to listen somewhere else in my house. So could I just get a quality amp and plug it into an outlet and then my iPhone through a LOD? I don't have too much knowledge on full-sized/desktop amps, so I am not sure if I am missing something obvious or not. So is it possible to use a full sized amp with my iPhone as long as I remain stationary?